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<h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">U880</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Go to an article in another language. Available in 7 languages" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-7" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">7 languages</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/MME_U880" title="MME U880 – German" lang="de" hreflang="de" data-title="MME U880" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/U880" title="U880 – Spanish" lang="es" hreflang="es" data-title="U880" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/U880" title="U880 – Italian" lang="it" hreflang="it" data-title="U880" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/U880" title="U880 – Hungarian" lang="hu" hreflang="hu" data-title="U880" data-language-autonym="Magyar" data-language-local-name="Hungarian" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/U880" title="U880 – Dutch" lang="nl" hreflang="nl" data-title="U880" data-language-autonym="Nederlands" data-language-local-name="Dutch" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/MME_U880" title="MME U880 – Japanese" lang="ja" hreflang="ja" data-title="MME U880" data-language-autonym="日本語" data-language-local-name="Japanese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/U880D" title="U880D – Polish" lang="pl" hreflang="pl" data-title="U880D" data-language-autonym="Polski" data-language-local-name="Polish" class="interlanguage-link-target"><span>Polski</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q1751334#sitelinks-wikipedia" title="Edit interlanguage links" class="wbc-editpage">Edit links</a></span></div> </div> </div> </div> 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role="note" class="hatnote navigation-not-searchable">This article is about a microprocessor. For the submarine, see <a href="/wiki/German_submarine_U-880" title="German submarine U-880">German submarine U-880</a>.</div> <div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">8-bit microprocessor</div> <style data-mw-deduplicate="TemplateStyles:r1257001546">.mw-parser-output .infobox-subbox{padding:0;border:none;margin:-3px;width:auto;min-width:100%;font-size:100%;clear:none;float:none;background-color:transparent}.mw-parser-output .infobox-3cols-child{margin:auto}.mw-parser-output .infobox .navbar{font-size:100%}@media screen{html.skin-theme-clientpref-night .mw-parser-output .infobox-full-data:not(.notheme)>div:not(.notheme)[style]{background:#1f1f23!important;color:#f8f9fa}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox-full-data:not(.notheme) div:not(.notheme){background:#1f1f23!important;color:#f8f9fa}}@media(min-width:640px){body.skin--responsive .mw-parser-output .infobox-table{display:table!important}body.skin--responsive .mw-parser-output .infobox-table>caption{display:table-caption!important}body.skin--responsive .mw-parser-output .infobox-table>tbody{display:table-row-group}body.skin--responsive .mw-parser-output .infobox-table tr{display:table-row!important}body.skin--responsive .mw-parser-output .infobox-table th,body.skin--responsive .mw-parser-output .infobox-table td{padding-left:inherit;padding-right:inherit}}</style><table class="infobox"><caption class="infobox-title">U880</caption><tbody><tr><td colspan="2" class="infobox-image"><span class="mw-default-size" typeof="mw:File/Frameless"><a href="/wiki/File:KL_KME_U880D.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e3/KL_KME_U880D.jpg/220px-KL_KME_U880D.jpg" decoding="async" width="220" height="103" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e3/KL_KME_U880D.jpg/330px-KL_KME_U880D.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e3/KL_KME_U880D.jpg/440px-KL_KME_U880D.jpg 2x" data-file-width="1296" data-file-height="609" /></a></span><div class="infobox-caption">An early U880D microprocessor, manufactured in December 1981</div></td></tr><tr><th colspan="2" class="infobox-header">General information</th></tr><tr><th scope="row" class="infobox-label">Launched</th><td class="infobox-data">1980</td></tr><tr><th scope="row" class="infobox-label">Discontinued</th><td class="infobox-data"><abbr title="circa">c.</abbr> 1996</td></tr><tr><th scope="row" class="infobox-label">Common manufacturer</th><td class="infobox-data"><style data-mw-deduplicate="TemplateStyles:r1126788409">.mw-parser-output .plainlist ol,.mw-parser-output .plainlist ul{line-height:inherit;list-style:none;margin:0;padding:0}.mw-parser-output .plainlist ol li,.mw-parser-output .plainlist ul li{margin-bottom:0}</style><div class="plainlist"><ul><li>VEB Mikroelektronik "Karl Marx" Erfurt</li></ul></div></td></tr><tr><th colspan="2" class="infobox-header">Performance</th></tr><tr><th scope="row" class="infobox-label">Max. <a href="/wiki/Central_processing_unit" title="Central processing unit">CPU</a> <a href="/wiki/Clock_rate" title="Clock rate">clock rate</a></th><td class="infobox-data">1 MHz to 8 MHz</td></tr><tr><th colspan="2" class="infobox-header">Architecture and classification</th></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Instruction_set_architecture" title="Instruction set architecture">Instruction set</a></th><td class="infobox-data"><a href="/wiki/Zilog_Z80" title="Zilog Z80">Zilog Z80</a></td></tr><tr><th colspan="2" class="infobox-header">Physical specifications</th></tr><tr><th scope="row" class="infobox-label">Package</th><td class="infobox-data"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1126788409"><div class="plainlist"><ul><li><a href="/wiki/Dual_in-line_package" title="Dual in-line package">DIL40</a></li></ul></div></td></tr></tbody></table> <p>The <b>U880</b> is an <a href="/wiki/8-bit" class="mw-redirect" title="8-bit">8-bit</a> <a href="/wiki/Microprocessor" title="Microprocessor">microprocessor</a> that was manufactured by <a href="/wiki/Volkseigener_Betrieb" title="Volkseigener Betrieb">VEB</a> Mikroelektronik "Karl Marx" <a href="/wiki/Erfurt" title="Erfurt">Erfurt</a> (abbreviated as MME; part of <a href="/wiki/Kombinat_Mikroelektronik_Erfurt" title="Kombinat Mikroelektronik Erfurt">Kombinat Mikroelektronik Erfurt</a>) in the <a href="/wiki/German_Democratic_Republic" class="mw-redirect" title="German Democratic Republic">German Democratic Republic</a>. Production of the U880 started in 1980<sup id="cite_ref-berkner_1-0" class="reference"><a href="#cite_note-berkner-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> at VEB Funkwerk Erfurt (abbreviated as FWE; the plant was renamed to VEB Mikroelektronik "Karl Marx" in 1983<sup id="cite_ref-fwe_mme_2-0" class="reference"><a href="#cite_note-fwe_mme-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>). The U880 is an unlicensed <a href="/wiki/Clone_(computing)" title="Clone (computing)">clone</a> of the <a href="/wiki/Zilog" title="Zilog">Zilog</a> <a href="/wiki/Z80" class="mw-redirect" title="Z80">Z80</a> microprocessor, also supporting <a href="/wiki/Illegal_opcodes" class="mw-redirect" title="Illegal opcodes">illegal opcodes</a> and <a href="/wiki/Bug_compatibility" title="Bug compatibility">bugs</a>, except for very minor differences like not setting the CY flag for the <code class="mw-highlight mw-highlight-lang-asm mw-content-ltr" style="" dir="ltr"><span class="nf">OUTI</span></code> command (when L goes zero). </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Processor_variants">Processor variants</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=U880&action=edit&section=1" title="Edit section: Processor variants"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:T34vm1-Z80.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/4/44/T34vm1-Z80.jpg/220px-T34vm1-Z80.jpg" decoding="async" width="220" height="209" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/44/T34vm1-Z80.jpg/330px-T34vm1-Z80.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/44/T34vm1-Z80.jpg/440px-T34vm1-Z80.jpg 2x" data-file-width="1000" data-file-height="948" /></a><figcaption><a href="/wiki/Die_(integrated_circuit)" title="Die (integrated circuit)">Die</a> of the U880; size 4513 μm x 4251 μm (first die shrink 1984); chip inscription at the bottom of the image: "U880/5 HL JH 84"</figcaption></figure> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:KR1858VM1-HD.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d9/KR1858VM1-HD.jpg/220px-KR1858VM1-HD.jpg" decoding="async" width="220" height="209" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d9/KR1858VM1-HD.jpg/330px-KR1858VM1-HD.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d9/KR1858VM1-HD.jpg/440px-KR1858VM1-HD.jpg 2x" data-file-width="8424" data-file-height="7994" /></a><figcaption><a href="/wiki/Die_(integrated_circuit)" title="Die (integrated circuit)">Die</a> of the U880; size 3601 μm x 3409 μm (second die shrink 1990); chip inscription at the bottom of the image: "U880/6 HL MME 1990"</figcaption></figure> <p>The U880 was manufactured in <a href="/wiki/NMOS_logic" title="NMOS logic">NMOS</a> technology and encased in a plastic <a href="/wiki/Dual_in-line_package" title="Dual in-line package">DIL40</a> package with a pin spacing of 2.5 mm<sup id="cite_ref-semi1981_3-0" class="reference"><a href="#cite_note-semi1981-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-semi1988_4-0" class="reference"><a href="#cite_note-semi1988-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> (export versions had the Western pin spacing of 2.54 mm; <a href="#Further_development">Russian variants</a> also came in a ceramic package). </p> <table class="wikitable"> <tbody><tr> <th>Temperature range </th> <th>Clock rate </th> <th>Designations </th></tr> <tr> <td>0 °C to 40 °C </td> <td>1 MHz </td> <td>UD880D,<sup id="cite_ref-hobby_5-0" class="reference"><a href="#cite_note-hobby-5"><span class="cite-bracket">[</span>a<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-rfe8602_6-0" class="reference"><a href="#cite_note-rfe8602-6"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> UB880D S1<sup id="cite_ref-hobby_5-1" class="reference"><a href="#cite_note-hobby-5"><span class="cite-bracket">[</span>a<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-fa8901_7-0" class="reference"><a href="#cite_note-fa8901-7"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td rowspan="3">0 °C to 70 °C </td> <td>2.5 MHz </td> <td>U880D,<sup id="cite_ref-orig_8-0" class="reference"><a href="#cite_note-orig-8"><span class="cite-bracket">[</span>b<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-semi1981_3-1" class="reference"><a href="#cite_note-semi1981-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> UB880D,<sup id="cite_ref-semi1988_4-1" class="reference"><a href="#cite_note-semi1988-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> 80-CPU<sup id="cite_ref-export_9-0" class="reference"><a href="#cite_note-export-9"><span class="cite-bracket">[</span>c<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td>4 MHz </td> <td>UA880D,<sup id="cite_ref-semi1988_4-2" class="reference"><a href="#cite_note-semi1988-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> 80A-CPU<sup id="cite_ref-export_9-1" class="reference"><a href="#cite_note-export-9"><span class="cite-bracket">[</span>c<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td>8 MHz </td> <td>U880DC08,<sup id="cite_ref-ermic_10-0" class="reference"><a href="#cite_note-ermic-10"><span class="cite-bracket">[</span>d<span class="cite-bracket">]</span></a></sup> Thesys Z80H<sup id="cite_ref-thesys_11-0" class="reference"><a href="#cite_note-thesys-11"><span class="cite-bracket">[</span>e<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td>−25 °C to +85 °C </td> <td>2.5 MHz </td> <td>VB880D<sup id="cite_ref-semi1988_4-3" class="reference"><a href="#cite_note-semi1988-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </td></tr></tbody></table> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist reflist-lower-alpha"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-hobby-5"><span class="mw-cite-backlink">^ <a href="#cite_ref-hobby_5-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-hobby_5-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text">Out-of-spec, hobbyist version</span> </li> <li id="cite_note-orig-8"><span class="mw-cite-backlink"><b><a href="#cite_ref-orig_8-0">^</a></b></span> <span class="reference-text">Original designation when this was the only variant available</span> </li> <li id="cite_note-export-9"><span class="mw-cite-backlink">^ <a href="#cite_ref-export_9-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-export_9-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text">Designation for export; 2.54 mm pin spacing</span> </li> <li id="cite_note-ermic-10"><span class="mw-cite-backlink"><b><a href="#cite_ref-ermic_10-0">^</a></b></span> <span class="reference-text">Manufactured in 1992 by <a href="#Further_development">ERMIC</a></span> </li> <li id="cite_note-thesys-11"><span class="mw-cite-backlink"><b><a href="#cite_ref-thesys_11-0">^</a></b></span> <span class="reference-text">Manufactured after 1992 by <a href="#Further_development">Thesys</a></span> </li> </ol></div></div> <p>The military version of the U880 has an additional "MEK 4" marking. </p> <ul class="gallery mw-gallery-traditional"> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Robotron_UA880D_MME_1.jpg" class="mw-file-description" title="UA880D (1986)"><img alt="UA880D (1986)" src="//upload.wikimedia.org/wikipedia/commons/thumb/1/18/Robotron_UA880D_MME_1.jpg/120px-Robotron_UA880D_MME_1.jpg" decoding="async" width="120" height="69" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/18/Robotron_UA880D_MME_1.jpg/180px-Robotron_UA880D_MME_1.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/18/Robotron_UA880D_MME_1.jpg/240px-Robotron_UA880D_MME_1.jpg 2x" data-file-width="498" data-file-height="287" /></a></span></div> <div class="gallerytext">UA880D (1986)</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Robotron_UB880D_MME_S1_1.jpg" class="mw-file-description" title="UB880D S1 hobbyist version (1989)"><img alt="UB880D S1 hobbyist version (1989)" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c2/Robotron_UB880D_MME_S1_1.jpg/120px-Robotron_UB880D_MME_S1_1.jpg" decoding="async" width="120" height="76" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c2/Robotron_UB880D_MME_S1_1.jpg/180px-Robotron_UB880D_MME_S1_1.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c2/Robotron_UB880D_MME_S1_1.jpg/240px-Robotron_UB880D_MME_S1_1.jpg 2x" data-file-width="565" data-file-height="358" /></a></span></div> <div class="gallerytext">UB880D S1 hobbyist version (1989)</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Robotron_UB880D_MME_MEK4_1.jpg" class="mw-file-description" title="UB880D with military "MEK 4" marking (1989)"><img alt="UB880D with military "MEK 4" marking (1989)" src="//upload.wikimedia.org/wikipedia/commons/thumb/5/5b/Robotron_UB880D_MME_MEK4_1.jpg/120px-Robotron_UB880D_MME_MEK4_1.jpg" decoding="async" width="120" height="84" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/5b/Robotron_UB880D_MME_MEK4_1.jpg/180px-Robotron_UB880D_MME_MEK4_1.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/5b/Robotron_UB880D_MME_MEK4_1.jpg/240px-Robotron_UB880D_MME_MEK4_1.jpg 2x" data-file-width="612" data-file-height="430" /></a></span></div> <div class="gallerytext">UB880D with military "MEK 4" marking (1989)</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Robotron_VB880D_MME_1.jpg" class="mw-file-description" title="VB880D industrial temperature version (1990)"><img alt="VB880D industrial temperature version (1990)" src="//upload.wikimedia.org/wikipedia/commons/thumb/1/11/Robotron_VB880D_MME_1.jpg/120px-Robotron_VB880D_MME_1.jpg" decoding="async" width="120" height="73" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/11/Robotron_VB880D_MME_1.jpg/180px-Robotron_VB880D_MME_1.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/11/Robotron_VB880D_MME_1.jpg/240px-Robotron_VB880D_MME_1.jpg 2x" data-file-width="551" data-file-height="333" /></a></span></div> <div class="gallerytext">VB880D industrial temperature version (1990)</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Robotron_80A_CPU_MME_1.jpg" class="mw-file-description" title="80A-CPU marking for export"><img alt="80A-CPU marking for export" src="//upload.wikimedia.org/wikipedia/commons/thumb/8/8c/Robotron_80A_CPU_MME_1.jpg/120px-Robotron_80A_CPU_MME_1.jpg" decoding="async" width="120" height="67" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/8c/Robotron_80A_CPU_MME_1.jpg/180px-Robotron_80A_CPU_MME_1.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/8c/Robotron_80A_CPU_MME_1.jpg/240px-Robotron_80A_CPU_MME_1.jpg 2x" data-file-width="494" data-file-height="276" /></a></span></div> <div class="gallerytext">80A-CPU marking for export</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:U880DC08_C3_FWE-L.jpg" class="mw-file-description" title="U880DC08 (1992)"><img alt="U880DC08 (1992)" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c1/U880DC08_C3_FWE-L.jpg/120px-U880DC08_C3_FWE-L.jpg" decoding="async" width="120" height="73" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c1/U880DC08_C3_FWE-L.jpg/180px-U880DC08_C3_FWE-L.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c1/U880DC08_C3_FWE-L.jpg/240px-U880DC08_C3_FWE-L.jpg 2x" data-file-width="2600" data-file-height="1571" /></a></span></div> <div class="gallerytext">U880DC08 (1992)</div> </li> </ul> <div class="mw-heading mw-heading2"><h2 id="Support_chips">Support chips</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=U880&action=edit&section=2" title="Edit section: Support chips"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:DDR-DIL40-Zollraster.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e6/DDR-DIL40-Zollraster.jpg/220px-DDR-DIL40-Zollraster.jpg" decoding="async" width="220" height="113" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e6/DDR-DIL40-Zollraster.jpg/330px-DDR-DIL40-Zollraster.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e6/DDR-DIL40-Zollraster.jpg/440px-DDR-DIL40-Zollraster.jpg 2x" data-file-width="1211" data-file-height="624" /></a><figcaption>Floppy-disk controller U8272D04 (1989)</figcaption></figure> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:MME_U82720DC03_(%3Di82720).jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/8/85/MME_U82720DC03_%28%3Di82720%29.jpg/220px-MME_U82720DC03_%28%3Di82720%29.jpg" decoding="async" width="220" height="165" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/85/MME_U82720DC03_%28%3Di82720%29.jpg/330px-MME_U82720DC03_%28%3Di82720%29.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/85/MME_U82720DC03_%28%3Di82720%29.jpg/440px-MME_U82720DC03_%28%3Di82720%29.jpg 2x" data-file-width="4000" data-file-height="3000" /></a><figcaption>Graphics display controller U82720DC03 (1989)</figcaption></figure> <p>VEB Mikroelektronik "Karl Marx" also manufactured a number of support chips for the U880. The prefixes UA, UB, VB, 80, and 80A correspond to the same temperature ranges and clock rates as for the processor variants above. Likewise, the suffix S1 indicates the out-of-spec, hobbyist version. </p> <table class="wikitable"> <tbody><tr> <th>Designation </th> <th>International equivalent </th> <th>Description </th></tr> <tr> <td>U855D,<sup id="cite_ref-orig_12-0" class="reference"><a href="#cite_note-orig-12"><span class="cite-bracket">[</span>a<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-semi1981_3-2" class="reference"><a href="#cite_note-semi1981-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> UA855D,<sup id="cite_ref-semi1988_4-4" class="reference"><a href="#cite_note-semi1988-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-cpu_supp_13-0" class="reference"><a href="#cite_note-cpu_supp-13"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> UB855D,<sup id="cite_ref-semi1988_4-5" class="reference"><a href="#cite_note-semi1988-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-cpu_supp_13-1" class="reference"><a href="#cite_note-cpu_supp-13"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> UD855D,<sup id="cite_ref-hobby_14-0" class="reference"><a href="#cite_note-hobby-14"><span class="cite-bracket">[</span>b<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-rfe8602_6-1" class="reference"><a href="#cite_note-rfe8602-6"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> VB855D,<sup id="cite_ref-semi1988_4-6" class="reference"><a href="#cite_note-semi1988-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> UB855D S1,<sup id="cite_ref-hobby_14-1" class="reference"><a href="#cite_note-hobby-14"><span class="cite-bracket">[</span>b<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-fa8901_7-1" class="reference"><a href="#cite_note-fa8901-7"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> 80-PIO,<sup id="cite_ref-export_15-0" class="reference"><a href="#cite_note-export-15"><span class="cite-bracket">[</span>c<span class="cite-bracket">]</span></a></sup> 80A-PIO<sup id="cite_ref-export_15-1" class="reference"><a href="#cite_note-export-15"><span class="cite-bracket">[</span>c<span class="cite-bracket">]</span></a></sup> </td> <td><a href="/wiki/Zilog_Z80#Compatible_peripherals" title="Zilog Z80">Zilog Z80 PIO</a> </td> <td>parallel input/output </td></tr> <tr> <td>U8560D,<sup id="cite_ref-orig_12-1" class="reference"><a href="#cite_note-orig-12"><span class="cite-bracket">[</span>a<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-semi1981_3-3" class="reference"><a href="#cite_note-semi1981-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> UA8560D,<sup id="cite_ref-semi1988_4-7" class="reference"><a href="#cite_note-semi1988-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> UB8560D,<sup id="cite_ref-semi1988_4-8" class="reference"><a href="#cite_note-semi1988-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-cpu_supp_13-2" class="reference"><a href="#cite_note-cpu_supp-13"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> VB8560D,<sup id="cite_ref-semi1988_4-9" class="reference"><a href="#cite_note-semi1988-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> UB8560D S1,<sup id="cite_ref-hobby_14-2" class="reference"><a href="#cite_note-hobby-14"><span class="cite-bracket">[</span>b<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-fa8901_7-2" class="reference"><a href="#cite_note-fa8901-7"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> 80-SIO/0,<sup id="cite_ref-export_15-2" class="reference"><a href="#cite_note-export-15"><span class="cite-bracket">[</span>c<span class="cite-bracket">]</span></a></sup> 80A-SIO/0<sup id="cite_ref-export_15-3" class="reference"><a href="#cite_note-export-15"><span class="cite-bracket">[</span>c<span class="cite-bracket">]</span></a></sup> </td> <td><a href="/wiki/Zilog_Z80#Compatible_peripherals" title="Zilog Z80">Zilog Z80 SIO/0</a> </td> <td>serial input/output </td></tr> <tr> <td>U857D,<sup id="cite_ref-orig_12-2" class="reference"><a href="#cite_note-orig-12"><span class="cite-bracket">[</span>a<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-semi1981_3-4" class="reference"><a href="#cite_note-semi1981-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> UA857D,<sup id="cite_ref-semi1988_4-10" class="reference"><a href="#cite_note-semi1988-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-cpu_supp_13-3" class="reference"><a href="#cite_note-cpu_supp-13"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> UB857D,<sup id="cite_ref-semi1988_4-11" class="reference"><a href="#cite_note-semi1988-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-cpu_supp_13-4" class="reference"><a href="#cite_note-cpu_supp-13"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> VB857D,<sup id="cite_ref-semi1988_4-12" class="reference"><a href="#cite_note-semi1988-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> UB857D S1,<sup id="cite_ref-hobby_14-3" class="reference"><a href="#cite_note-hobby-14"><span class="cite-bracket">[</span>b<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-fa8901_7-3" class="reference"><a href="#cite_note-fa8901-7"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> 80-CTC,<sup id="cite_ref-export_15-4" class="reference"><a href="#cite_note-export-15"><span class="cite-bracket">[</span>c<span class="cite-bracket">]</span></a></sup> 80A-CTC<sup id="cite_ref-export_15-5" class="reference"><a href="#cite_note-export-15"><span class="cite-bracket">[</span>c<span class="cite-bracket">]</span></a></sup> </td> <td><a href="/wiki/Zilog_Z80#Compatible_peripherals" title="Zilog Z80">Zilog Z80 CTC</a> </td> <td>counter/timer circuit </td></tr> <tr> <td>UA858D,<sup id="cite_ref-semi1988_4-13" class="reference"><a href="#cite_note-semi1988-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> UB858D,<sup id="cite_ref-semi1988_4-14" class="reference"><a href="#cite_note-semi1988-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> UB858D S1,<sup id="cite_ref-hobby_14-4" class="reference"><a href="#cite_note-hobby-14"><span class="cite-bracket">[</span>b<span class="cite-bracket">]</span></a></sup> 80-DMA,<sup id="cite_ref-export_15-6" class="reference"><a href="#cite_note-export-15"><span class="cite-bracket">[</span>c<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-cpu_supp_13-5" class="reference"><a href="#cite_note-cpu_supp-13"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> 80A-DMA<sup id="cite_ref-export_15-7" class="reference"><a href="#cite_note-export-15"><span class="cite-bracket">[</span>c<span class="cite-bracket">]</span></a></sup> </td> <td><a href="/wiki/Zilog_Z80#Compatible_peripherals" title="Zilog Z80">Zilog Z80 DMA</a> </td> <td>DMA controller </td></tr> <tr> <td>U8561D,<sup id="cite_ref-orig_12-3" class="reference"><a href="#cite_note-orig-12"><span class="cite-bracket">[</span>a<span class="cite-bracket">]</span></a></sup> UB8561D<sup id="cite_ref-prak_mikro_16-0" class="reference"><a href="#cite_note-prak_mikro-16"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </td> <td><a href="/wiki/Zilog_Z80#Compatible_peripherals" title="Zilog Z80">Zilog Z80 SIO/1</a> </td> <td>serial input/output </td></tr> <tr> <td>UA8563D,<sup id="cite_ref-semi1988_4-15" class="reference"><a href="#cite_note-semi1988-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> UB8563D,<sup id="cite_ref-semi1988_4-16" class="reference"><a href="#cite_note-semi1988-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> VB8563D,<sup id="cite_ref-semi1988_4-17" class="reference"><a href="#cite_note-semi1988-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> UB8563D S1,<sup id="cite_ref-hobby_14-5" class="reference"><a href="#cite_note-hobby-14"><span class="cite-bracket">[</span>b<span class="cite-bracket">]</span></a></sup> 80-DART,<sup id="cite_ref-export_15-8" class="reference"><a href="#cite_note-export-15"><span class="cite-bracket">[</span>c<span class="cite-bracket">]</span></a></sup> 80A-DART<sup id="cite_ref-export_15-9" class="reference"><a href="#cite_note-export-15"><span class="cite-bracket">[</span>c<span class="cite-bracket">]</span></a></sup> </td> <td><a href="/wiki/Zilog_Z80#Compatible_peripherals" title="Zilog Z80">Zilog Z80 DART</a> </td> <td>dual asynchronous receiver/transmitter </td></tr> <tr> <td>U8272D04,<sup id="cite_ref-semi1988_4-18" class="reference"><a href="#cite_note-semi1988-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> U8272D08<sup id="cite_ref-semi1988_4-19" class="reference"><a href="#cite_note-semi1988-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </td> <td><a href="/wiki/Floppy-disk_controller" title="Floppy-disk controller">Intel 8272</a> </td> <td>floppy-disk controller </td></tr> <tr> <td>U82530DC04,<sup id="cite_ref-semi1990_17-0" class="reference"><a href="#cite_note-semi1990-17"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> U82530DC06<sup id="cite_ref-semi1990_17-1" class="reference"><a href="#cite_note-semi1990-17"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> </td> <td><a href="/wiki/Zilog_SCC" title="Zilog SCC">Zilog SCC</a> </td> <td>serial communications controller </td></tr> <tr> <td>U82536DC04<sup id="cite_ref-semi1990_17-2" class="reference"><a href="#cite_note-semi1990-17"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> </td> <td>Zilog CIO </td> <td>counter/timer and parallel input/output </td></tr> <tr> <td>U82720DC02, U82720DC03, U82720DC04<sup id="cite_ref-semi1988_4-20" class="reference"><a href="#cite_note-semi1988-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </td> <td><a href="/wiki/NEC_%CE%BCPD7220" title="NEC μPD7220">Intel 82720</a> </td> <td>graphics display controller </td></tr></tbody></table> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239543626"><div class="reflist reflist-lower-alpha"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-orig-12"><span class="mw-cite-backlink">^ <a href="#cite_ref-orig_12-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-orig_12-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-orig_12-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-orig_12-3"><sup><i><b>d</b></i></sup></a></span> <span class="reference-text">Original designation when this was the only variant available</span> </li> <li id="cite_note-hobby-14"><span class="mw-cite-backlink">^ <a href="#cite_ref-hobby_14-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-hobby_14-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-hobby_14-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-hobby_14-3"><sup><i><b>d</b></i></sup></a> <a href="#cite_ref-hobby_14-4"><sup><i><b>e</b></i></sup></a> <a href="#cite_ref-hobby_14-5"><sup><i><b>f</b></i></sup></a></span> <span class="reference-text">Out-of-spec, hobbyist version</span> </li> <li id="cite_note-export-15"><span class="mw-cite-backlink">^ <a href="#cite_ref-export_15-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-export_15-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-export_15-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-export_15-3"><sup><i><b>d</b></i></sup></a> <a href="#cite_ref-export_15-4"><sup><i><b>e</b></i></sup></a> <a href="#cite_ref-export_15-5"><sup><i><b>f</b></i></sup></a> <a href="#cite_ref-export_15-6"><sup><i><b>g</b></i></sup></a> <a href="#cite_ref-export_15-7"><sup><i><b>h</b></i></sup></a> <a href="#cite_ref-export_15-8"><sup><i><b>i</b></i></sup></a> <a href="#cite_ref-export_15-9"><sup><i><b>j</b></i></sup></a></span> <span class="reference-text">Designation for export; 2.54 mm pin spacing</span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="Applications">Applications</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=U880&action=edit&section=3" title="Edit section: Applications"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The U880 was by far the most widely used microprocessor in the German Democratic Republic. Examples are: </p> <ul><li>office computers <a href="/wiki/A_5120" title="A 5120">A 5120</a>, <a href="/wiki/PC_1715" title="PC 1715">PC 1715</a> (both by <a href="/wiki/VEB_Robotron" title="VEB Robotron">VEB Robotron</a>), the 1715 used a second U880 just for the keyboard.</li> <li>home computers <a href="/wiki/KC_85" title="KC 85">KC 85</a>, <a href="/wiki/Amstrad_CPC#KC_compact" title="Amstrad CPC">KC compact</a> (both by <a href="/wiki/Kombinat_Mikroelektronik_Erfurt" title="Kombinat Mikroelektronik Erfurt">VEB Mikroelektronik "Wilhelm Pieck" Mühlhausen</a>), <a href="/wiki/Robotron_KC_87" title="Robotron KC 87">KC 87</a>, <a href="/wiki/Robotron_Z1013" title="Robotron Z1013">Z1013</a> (both by VEB Robotron), <a href="/wiki/LC80" title="LC80">LC80</a> by <a href="/wiki/Kombinat_Mikroelektronik_Erfurt" title="Kombinat Mikroelektronik Erfurt">Kombinat Mikroelektronik Erfurt</a></li> <li>arcade game <a href="/wiki/Poly_Play" class="mw-redirect" title="Poly Play">Poly Play</a> (by <a href="/wiki/VEB_Polytechnik" title="VEB Polytechnik">VEB Polytechnik</a>)</li></ul> <p>At the time the U880 was the most advanced 8-bit processor available in the Eastern Bloc. Only clones of the <a href="/wiki/Intel_8080" title="Intel 8080">Intel 8080</a> were manufactured in Poland, Czechoslovakia, Hungary, Romania, and the Soviet Union. As the Z80 replaced the Intel 8080 in the West, the U880 was used throughout the Eastern Bloc. Examples are: </p> <ul><li>Poland: home computers <a href="/wiki/Mera-Elzab_Meritum" title="Mera-Elzab Meritum">Mera-Elzab Meritum</a>, <a href="/w/index.php?title=Elwro_700_Solum&action=edit&redlink=1" class="new" title="Elwro 700 Solum (page does not exist)">Elwro 700 Solum</a><span class="noprint" style="font-size:85%; font-style: normal;"> [<a href="https://pl.wikipedia.org/wiki/Elwro_700_Solum" class="extiw" title="pl:Elwro 700 Solum">pl</a>]</span>, <a href="/wiki/List_of_ZX_Spectrum_clones#Elwro_800_Junior" title="List of ZX Spectrum clones">Elwro 800 Junior</a>, <a href="/w/index.php?title=MIK_CA80&action=edit&redlink=1" class="new" title="MIK CA80 (page does not exist)">MIK CA80</a><span class="noprint" style="font-size:85%; font-style: normal;"> [<a href="https://pl.wikipedia.org/wiki/MIK_CA80" class="extiw" title="pl:MIK CA80">pl</a>]</span></li> <li>Czechoslovakia: home computers <a href="/wiki/Didaktik" title="Didaktik">Didaktik Gama</a>, <a href="/wiki/Tesla_(Czechoslovak_company)" class="mw-redirect" title="Tesla (Czechoslovak company)">Tesla</a> Ondra<sup id="cite_ref-18" class="reference"><a href="#cite_note-18"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup></li> <li>Hungary: home computer <a href="/w/index.php?title=Microkey_Primo&action=edit&redlink=1" class="new" title="Microkey Primo (page does not exist)">Microkey Primo</a><span class="noprint" style="font-size:85%; font-style: normal;"> [<a href="https://hu.wikipedia.org/wiki/Primo" class="extiw" title="hu:Primo">hu</a>]</span><sup id="cite_ref-19" class="reference"><a href="#cite_note-19"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup></li> <li>Romania: home computers Electromagnetica JET,<sup id="cite_ref-20" class="reference"><a href="#cite_note-20"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> <a href="/w/index.php?title=ITCI_MicroTIM&action=edit&redlink=1" class="new" title="ITCI MicroTIM (page does not exist)">ITCI MicroTIM</a><span class="noprint" style="font-size:85%; font-style: normal;"> [<a href="https://ro.wikipedia.org/wiki/MicroTIM" class="extiw" title="ro:MicroTIM">ro</a>]</span>, <a href="/w/index.php?title=ICE-Felix_HC-85&action=edit&redlink=1" class="new" title="ICE-Felix HC-85 (page does not exist)">ICE-Felix HC-85</a><span class="noprint" style="font-size:85%; font-style: normal;"> [<a href="https://ro.wikipedia.org/wiki/HC#HC_85" class="extiw" title="ro:HC">ro</a>]</span>,<sup id="cite_ref-dtic1987_21-0" class="reference"><a href="#cite_note-dtic1987-21"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup> Feper Junior<sup id="cite_ref-dtic1987_21-1" class="reference"><a href="#cite_note-dtic1987-21"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup></li> <li>Bulgaria: office computer <a href="/w/index.php?title=ISOT-1031C&action=edit&redlink=1" class="new" title="ISOT-1031C (page does not exist)">ISOT-1031C</a><span class="noprint" style="font-size:85%; font-style: normal;"> [<a href="https://ru.wikipedia.org/wiki/%D0%98%D0%97%D0%9E%D0%A2#Компьютеры" class="extiw" title="ru:ИЗОТ">ru</a>]</span><sup id="cite_ref-22" class="reference"><a href="#cite_note-22"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup></li> <li>Soviet Union: home computer <a href="/wiki/Dubna_48K" title="Dubna 48K">Dubna 48K</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="Further_development">Further development</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=U880&action=edit&section=4" title="Edit section: Further development"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:T34vm1.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/5/5a/T34vm1.jpg/220px-T34vm1.jpg" decoding="async" width="220" height="87" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/5a/T34vm1.jpg/330px-T34vm1.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/5a/T34vm1.jpg/440px-T34vm1.jpg 2x" data-file-width="1000" data-file-height="396" /></a><figcaption>Microprocessor T34VM1 (Angstrem Zelenograd, 1991)</figcaption></figure> <p>Following the example of Zilog where the Z80 was succeeded by the 16-bit processors <a href="/wiki/Zilog_Z8000" title="Zilog Z8000">Z8001 / Z8002</a>, VEB Mikroelektronik "Karl Marx" produced the <a href="/wiki/Zilog_Z8000#Second_sources" title="Zilog Z8000">U8001 / U8002</a>. And just like its Western counterpart, the U8001 / U8002 saw far less use than the U880. When <a href="/wiki/MS-DOS" title="MS-DOS">MS-DOS</a> emerged as the dominant operating system for personal computers, in the Eastern Bloc the only available clone of the <a href="/wiki/Intel_8086" title="Intel 8086">Intel 8086</a> was the Soviet <a href="/wiki/K1810VM86" title="K1810VM86">K1810VM86</a>. VEB Mikroelektronik "Karl Marx" then proceeded to develop a clone of the <a href="/wiki/Intel_80286" title="Intel 80286">Intel 80286</a>, the <a href="/wiki/U80601" title="U80601">U80601</a>.<sup id="cite_ref-semi1990_17-3" class="reference"><a href="#cite_note-semi1990-17"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> Furthermore, a CMOS version of the Z80 was developed with the designation U84C00.<sup id="cite_ref-semi1990_17-4" class="reference"><a href="#cite_note-semi1990-17"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-23" class="reference"><a href="#cite_note-23"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-24" class="reference"><a href="#cite_note-24"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup> Due to the economic changes following the <a href="/wiki/German_reunification" title="German reunification">German reunification</a> in 1990, neither project proceeded beyond pilot production. VEB Mikroelektronik "Karl Marx" (MME) was privatized in 1990 under the name ERMIC GmbH, a large part of which became Thesys Gesellschaft für Mikroelektronik mbH in 1992.<sup id="cite_ref-erfurt_web_25-0" class="reference"><a href="#cite_note-erfurt_web-25"><span class="cite-bracket">[</span>17<span class="cite-bracket">]</span></a></sup> Both ERMIC and Thesys continued to manufacture the NMOS version of the U880, ERMIC still with the MME name and logo,<sup id="cite_ref-26" class="reference"><a href="#cite_note-26"><span class="cite-bracket">[</span>18<span class="cite-bracket">]</span></a></sup> Thesys under its new name. A <a href="/wiki/Die_shrink" title="Die shrink">die shrink</a> chip with the marking U880/6 had been developed in 1990 and went into production some time after that. The smaller chip allowed clock rates up to 8 MHz for the U880DC08 and Thesys Z80H. While Zilog likely could have taken up legal action against the successors of VEB Mikroelektronik "Karl Marx" for copyright infringement, they recruited Thesys as a Zilog distributor instead.<sup id="cite_ref-27" class="reference"><a href="#cite_note-27"><span class="cite-bracket">[</span>19<span class="cite-bracket">]</span></a></sup> </p><p>From about 1991 until 1993, bare U880 chips were sold to Russian and Ukrainian companies and packaged there. Initially the U880/5 chip revision was labelled as 80A-CPU<sup id="cite_ref-28" class="reference"><a href="#cite_note-28"><span class="cite-bracket">[</span>20<span class="cite-bracket">]</span></a></sup> and <a href="/wiki/T34VM1" class="mw-redirect" title="T34VM1">T34VM1</a><span class="noprint" style="font-size:85%; font-style: normal;"> [<a href="https://ru.wikipedia.org/wiki/%D0%A234%D0%92%D0%9C1" class="extiw" title="ru:Т34ВМ1">ru</a>]</span> (<a href="/wiki/Russian_language" title="Russian language">Russian</a>: <span lang="ru">Т34ВМ1</span>).<sup id="cite_ref-29" class="reference"><a href="#cite_note-29"><span class="cite-bracket">[</span>21<span class="cite-bracket">]</span></a></sup> Later integrated circuits with U880/6 chips inside received the official <a href="/wiki/Soviet_integrated_circuit_designation" title="Soviet integrated circuit designation">designation</a> <a href="/wiki/KR1858VM1" class="mw-redirect" title="KR1858VM1">KR1858VM1</a><span class="noprint" style="font-size:85%; font-style: normal;"> [<a href="https://ru.wikipedia.org/wiki/%D0%9A%D0%A01858%D0%92%D0%9C1" class="extiw" title="ru:КР1858ВМ1">ru</a>]</span> (<a href="/wiki/Russian_language" title="Russian language">Russian</a>: <span lang="ru">КР1858ВМ1</span>) for the plastic package and KM1858VM1 (<a href="/wiki/Russian_language" title="Russian language">Russian</a>: <span lang="ru">КМ1858ВМ1</span>) for the ceramic package.<sup id="cite_ref-museum1858_30-0" class="reference"><a href="#cite_note-museum1858-30"><span class="cite-bracket">[</span>22<span class="cite-bracket">]</span></a></sup> Manufacturers include <a href="/wiki/Angstrem_(company)" title="Angstrem (company)">Angstrem</a> <a href="/wiki/Zelenograd" title="Zelenograd">Zelenograd</a>, Kvazar Kiev, and VZPP <a href="/wiki/Voronesh" class="mw-redirect" title="Voronesh">Voronesh</a>.<sup id="cite_ref-museum1858_30-1" class="reference"><a href="#cite_note-museum1858-30"><span class="cite-bracket">[</span>22<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=U880&action=edit&section=5" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239543626"><div class="reflist"> <div class="mw-references-wrap mw-references-columns"><ol class="references"> <li id="cite_note-berkner-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-berkner_1-0">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite id="CITEREFBerkner2016" class="citation web cs1 cs1-prop-foreign-lang-source">Berkner, Jörg (2016-04-12). <a rel="nofollow" class="external text" href="http://www.all-electronics.de/die-halbleiterindustrie-in-der-ddr/">"Die Halbleiterindustrie in der DDR"</a> (in German). Hüthig GmbH<span class="reference-accessdate">. Retrieved <span class="nowrap">2017-11-07</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Die+Halbleiterindustrie+in+der+DDR&rft.pub=H%C3%BCthig+GmbH&rft.date=2016-04-12&rft.aulast=Berkner&rft.aufirst=J%C3%B6rg&rft_id=http%3A%2F%2Fwww.all-electronics.de%2Fdie-halbleiterindustrie-in-der-ddr%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AU880" class="Z3988"></span></span> </li> <li id="cite_note-fwe_mme-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-fwe_mme_2-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation news cs1 cs1-prop-foreign-lang-source"><a rel="nofollow" class="external text" href="https://www.nd-archiv.de/ausgabe/1983-10-06">"Ehrennamen "Karl Marx" für Erfurter Betrieb"</a>. <i>Neues Deutschland</i> (in German). 1983-10-06<span class="reference-accessdate">. Retrieved <span class="nowrap">2017-11-03</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Neues+Deutschland&rft.atitle=Ehrennamen+%22Karl+Marx%22+f%C3%BCr+Erfurter+Betrieb&rft.date=1983-10-06&rft_id=https%3A%2F%2Fwww.nd-archiv.de%2Fausgabe%2F1983-10-06&rfr_id=info%3Asid%2Fen.wikipedia.org%3AU880" class="Z3988"></span></span> </li> <li id="cite_note-semi1981-3"><span class="mw-cite-backlink">^ <a href="#cite_ref-semi1981_3-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-semi1981_3-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-semi1981_3-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-semi1981_3-3"><sup><i><b>d</b></i></sup></a> <a href="#cite_ref-semi1981_3-4"><sup><i><b>e</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation book cs1"><a rel="nofollow" class="external text" href="http://datasheet.datasheetarchive.com/originals/scans/Scans-048/DSAGER000293.pdf"><i>RFT Semiconductors 1981</i></a> <span class="cs1-format">(PDF)</span>. elektronik export-import. 1981. pp. 20–21, 28–33<span class="reference-accessdate">. Retrieved <span class="nowrap">2018-01-16</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=RFT+Semiconductors+1981&rft.pages=20-21%2C+28-33&rft.pub=elektronik+export-import&rft.date=1981&rft_id=http%3A%2F%2Fdatasheet.datasheetarchive.com%2Foriginals%2Fscans%2FScans-048%2FDSAGER000293.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3AU880" class="Z3988"></span></span> </li> <li id="cite_note-semi1988-4"><span class="mw-cite-backlink">^ <a href="#cite_ref-semi1988_4-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-semi1988_4-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-semi1988_4-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-semi1988_4-3"><sup><i><b>d</b></i></sup></a> <a href="#cite_ref-semi1988_4-4"><sup><i><b>e</b></i></sup></a> <a href="#cite_ref-semi1988_4-5"><sup><i><b>f</b></i></sup></a> <a href="#cite_ref-semi1988_4-6"><sup><i><b>g</b></i></sup></a> <a href="#cite_ref-semi1988_4-7"><sup><i><b>h</b></i></sup></a> <a href="#cite_ref-semi1988_4-8"><sup><i><b>i</b></i></sup></a> <a href="#cite_ref-semi1988_4-9"><sup><i><b>j</b></i></sup></a> <a href="#cite_ref-semi1988_4-10"><sup><i><b>k</b></i></sup></a> <a href="#cite_ref-semi1988_4-11"><sup><i><b>l</b></i></sup></a> <a href="#cite_ref-semi1988_4-12"><sup><i><b>m</b></i></sup></a> <a href="#cite_ref-semi1988_4-13"><sup><i><b>n</b></i></sup></a> <a href="#cite_ref-semi1988_4-14"><sup><i><b>o</b></i></sup></a> <a href="#cite_ref-semi1988_4-15"><sup><i><b>p</b></i></sup></a> <a href="#cite_ref-semi1988_4-16"><sup><i><b>q</b></i></sup></a> <a href="#cite_ref-semi1988_4-17"><sup><i><b>r</b></i></sup></a> <a href="#cite_ref-semi1988_4-18"><sup><i><b>s</b></i></sup></a> <a href="#cite_ref-semi1988_4-19"><sup><i><b>t</b></i></sup></a> <a href="#cite_ref-semi1988_4-20"><sup><i><b>u</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation book cs1 cs1-prop-foreign-lang-source"><a rel="nofollow" class="external text" href="http://datasheet.datasheetarchive.com/originals/scans/Scans-048/DSAGER000639.pdf"><i>RFT Aktive elektronische Bauelemente 1988</i></a> [<i>RFT Active electronic components 1988</i>] <span class="cs1-format">(PDF)</span> (in German). VEB Kombinat Mikroelektronik. July 1987. pp. 243–258, 310–313, 326–328<span class="reference-accessdate">. Retrieved <span class="nowrap">2018-01-16</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=RFT+Aktive+elektronische+Bauelemente+1988&rft.pages=243-258%2C+310-313%2C+326-328&rft.pub=VEB+Kombinat+Mikroelektronik&rft.date=1987-07&rft_id=http%3A%2F%2Fdatasheet.datasheetarchive.com%2Foriginals%2Fscans%2FScans-048%2FDSAGER000639.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3AU880" class="Z3988"></span></span> </li> <li id="cite_note-rfe8602-6"><span class="mw-cite-backlink">^ <a href="#cite_ref-rfe8602_6-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-rfe8602_6-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation journal cs1 cs1-prop-foreign-lang-source">"UD 880 und UD 855" [UD 880 and UD 855]. <i>Radio Fernsehen Elektronik</i> (in German). <b>35</b> (2). VEB Verlag Technik: 70. 1986. <a href="/wiki/ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/0033-7900">0033-7900</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Radio+Fernsehen+Elektronik&rft.atitle=UD+880+und+UD+855&rft.volume=35&rft.issue=2&rft.pages=70&rft.date=1986&rft.issn=0033-7900&rfr_id=info%3Asid%2Fen.wikipedia.org%3AU880" class="Z3988"></span></span> </li> <li id="cite_note-fa8901-7"><span class="mw-cite-backlink">^ <a href="#cite_ref-fa8901_7-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-fa8901_7-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-fa8901_7-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-fa8901_7-3"><sup><i><b>d</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation magazine cs1 cs1-prop-foreign-lang-source"><a rel="nofollow" class="external text" href="https://www.scribd.com/doc/238017542/Funkamateur-1989-01">"Unipolare Amateur-IS (Übersicht)"</a> [Unipolar hobbyist IC (overview)]. <i><a href="/wiki/Funkamateur" title="Funkamateur">Funkamateur</a></i> (in German). Militärverlag der DDR. January 1989. pp. 27–28. <a href="/wiki/ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/0016-2833">0016-2833</a><span class="reference-accessdate">. Retrieved <span class="nowrap">2018-01-16</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Funkamateur&rft.atitle=Unipolare+Amateur-IS+%28%C3%9Cbersicht%29&rft.pages=27-28&rft.date=1989-01&rft.issn=0016-2833&rft_id=https%3A%2F%2Fwww.scribd.com%2Fdoc%2F238017542%2FFunkamateur-1989-01&rfr_id=info%3Asid%2Fen.wikipedia.org%3AU880" class="Z3988"></span></span> </li> <li id="cite_note-cpu_supp-13"><span class="mw-cite-backlink">^ <a href="#cite_ref-cpu_supp_13-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-cpu_supp_13-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-cpu_supp_13-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-cpu_supp_13-3"><sup><i><b>d</b></i></sup></a> <a href="#cite_ref-cpu_supp_13-4"><sup><i><b>e</b></i></sup></a> <a href="#cite_ref-cpu_supp_13-5"><sup><i><b>f</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.cpushack.com/soviet-supportchips.html">"East German, and Soviet Support Chips"</a>. The CPU shack. 2005<span class="reference-accessdate">. Retrieved <span class="nowrap">2018-02-22</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=East+German%2C+and+Soviet+Support+Chips&rft.pub=The+CPU+shack&rft.date=2005&rft_id=http%3A%2F%2Fwww.cpushack.com%2Fsoviet-supportchips.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3AU880" class="Z3988"></span></span> </li> <li id="cite_note-prak_mikro-16"><span class="mw-cite-backlink"><b><a href="#cite_ref-prak_mikro_16-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFKramer1986" class="citation book cs1 cs1-prop-foreign-lang-source">Kramer, Manfred (1986-02-15). <i>Praktische Mikrocomputertechnik</i> [<i>Practical microcomputer technology</i>] (in German). Militärverlag der DDR. p. 214. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/3-327-00361-0" title="Special:BookSources/3-327-00361-0"><bdi>3-327-00361-0</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Praktische+Mikrocomputertechnik&rft.pages=214&rft.pub=Milit%C3%A4rverlag+der+DDR&rft.date=1986-02-15&rft.isbn=3-327-00361-0&rft.aulast=Kramer&rft.aufirst=Manfred&rfr_id=info%3Asid%2Fen.wikipedia.org%3AU880" class="Z3988"></span></span> </li> <li id="cite_note-semi1990-17"><span class="mw-cite-backlink">^ <a href="#cite_ref-semi1990_17-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-semi1990_17-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-semi1990_17-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-semi1990_17-3"><sup><i><b>d</b></i></sup></a> <a href="#cite_ref-semi1990_17-4"><sup><i><b>e</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation book cs1 cs1-prop-foreign-lang-source"><a rel="nofollow" class="external text" href="https://www-user.tu-chemnitz.de/~heha/basteln/Konsumg%C3%BCter/DDR-Halbleiter/meg%C3%BC.pdf"><i>Mikroelektronik Gesamtübersicht</i></a> [<i>Microelectronics - Complete overview</i>] <span class="cs1-format">(PDF)</span> (in German). Applikationszentrum Elektronik Berlin. 1990<span class="reference-accessdate">. Retrieved <span class="nowrap">2018-01-17</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Mikroelektronik+Gesamt%C3%BCbersicht&rft.pub=Applikationszentrum+Elektronik+Berlin&rft.date=1990&rft_id=https%3A%2F%2Fwww-user.tu-chemnitz.de%2F~heha%2Fbasteln%2FKonsumg%25C3%25BCter%2FDDR-Halbleiter%2Fmeg%25C3%25BC.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3AU880" class="Z3988"></span></span> </li> <li id="cite_note-18"><span class="mw-cite-backlink"><b><a href="#cite_ref-18">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.homecomputer.de/pages/easteurope_cz.html#tesla_ondra">"Tesla Ondra"</a>. HCM<span class="reference-accessdate">. Retrieved <span class="nowrap">2018-01-13</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Tesla+Ondra&rft.pub=HCM&rft_id=http%3A%2F%2Fwww.homecomputer.de%2Fpages%2Feasteurope_cz.html%23tesla_ondra&rfr_id=info%3Asid%2Fen.wikipedia.org%3AU880" class="Z3988"></span></span> </li> <li id="cite_note-19"><span class="mw-cite-backlink"><b><a href="#cite_ref-19">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.old-computers.com/museum/computer.asp?c=38&st=1">"Microkey Primo A-32"</a>. Old-Computers.com<span class="reference-accessdate">. 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Retrieved <span class="nowrap">2018-03-21</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Funkwerk+Erfurt+%28FWE%29+Z80%2FZ80A&rft.pub=Silirium.ru&rft_id=http%3A%2F%2Fwww.silirium.ru%2Ffwe-z80.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3AU880" class="Z3988"></span></span> </li> <li id="cite_note-27"><span class="mw-cite-backlink"><b><a href="#cite_ref-27">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/19961212221306/http://www.zilog.com/intrd.html">"International Representatives and Distributors"</a>. Zilog, Inc. Archived from <a rel="nofollow" class="external text" href="http://www.zilog.com/intrd.html">the original</a> on 1996-12-12<span class="reference-accessdate">. Retrieved <span class="nowrap">2018-01-22</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=International+Representatives+and+Distributors&rft.pub=Zilog%2C+Inc.&rft_id=http%3A%2F%2Fwww.zilog.com%2Fintrd.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3AU880" class="Z3988"></span></span> </li> <li id="cite_note-28"><span class="mw-cite-backlink"><b><a href="#cite_ref-28">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1 cs1-prop-foreign-lang-source"><a rel="nofollow" class="external text" href="http://www.155la3.ru/80acpu_mme.htm">"80A-CPU MME"</a> (in Russian). Музей электронных раритетов<span class="reference-accessdate">. Retrieved <span class="nowrap">2019-10-29</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=80A-CPU+MME&rft.pub=%D0%9C%D1%83%D0%B7%D0%B5%D0%B9+%D1%8D%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%BE%D0%BD%D0%BD%D1%8B%D1%85+%D1%80%D0%B0%D1%80%D0%B8%D1%82%D0%B5%D1%82%D0%BE%D0%B2&rft_id=http%3A%2F%2Fwww.155la3.ru%2F80acpu_mme.htm&rfr_id=info%3Asid%2Fen.wikipedia.org%3AU880" class="Z3988"></span></span> </li> <li id="cite_note-29"><span class="mw-cite-backlink"><b><a href="#cite_ref-29">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1 cs1-prop-foreign-lang-source"><a rel="nofollow" class="external text" href="http://www.155la3.ru/t34vm1.htm">"Т34ВМ1"</a> [T34VM1] (in Russian). Музей электронных раритетов<span class="reference-accessdate">. Retrieved <span class="nowrap">2019-10-29</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=%D0%A234%D0%92%D0%9C1&rft.pub=%D0%9C%D1%83%D0%B7%D0%B5%D0%B9+%D1%8D%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%BE%D0%BD%D0%BD%D1%8B%D1%85+%D1%80%D0%B0%D1%80%D0%B8%D1%82%D0%B5%D1%82%D0%BE%D0%B2&rft_id=http%3A%2F%2Fwww.155la3.ru%2Ft34vm1.htm&rfr_id=info%3Asid%2Fen.wikipedia.org%3AU880" class="Z3988"></span></span> </li> <li id="cite_note-museum1858-30"><span class="mw-cite-backlink">^ <a href="#cite_ref-museum1858_30-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-museum1858_30-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1 cs1-prop-foreign-lang-source"><a rel="nofollow" class="external text" href="http://www.155la3.ru/k1858.htm">"1858ая серия"</a> [1858 series] (in Russian). Музей электронных раритетов<span class="reference-accessdate">. Retrieved <span class="nowrap">2019-10-29</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=1858%D0%B0%D1%8F+%D1%81%D0%B5%D1%80%D0%B8%D1%8F&rft.pub=%D0%9C%D1%83%D0%B7%D0%B5%D0%B9+%D1%8D%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%BE%D0%BD%D0%BD%D1%8B%D1%85+%D1%80%D0%B0%D1%80%D0%B8%D1%82%D0%B5%D1%82%D0%BE%D0%B2&rft_id=http%3A%2F%2Fwww.155la3.ru%2Fk1858.htm&rfr_id=info%3Asid%2Fen.wikipedia.org%3AU880" class="Z3988"></span></span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="Further_reading">Further reading</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=U880&action=edit&section=6" title="Edit section: Further reading"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236090951"><div role="note" class="hatnote navigation-not-searchable">See also: <a href="/wiki/Zilog_Z80#Further_reading" title="Zilog Z80">List of books about Z80 microprocessor</a></div> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=U880&action=edit&section=7" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a rel="nofollow" class="external text" href="http://www.cpu-collection.de/?l0=cl&l1=Z80&l2=Eastern%20Bloc">U880 Processors: images and descriptions from cpu-collection.de</a></li></ul> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline 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href="/wiki/Zilog_Z8" title="Zilog Z8">Z8</a> <ul><li><a href="/wiki/Z8_Encore!" title="Z8 Encore!">Z8 Encore!</a></li></ul></li> <li><a href="/wiki/Z80182" title="Z80182">Z80182</a></li> <li><a href="/wiki/Zilog_Encore!_32" title="Zilog Encore! 32">Encore! 32</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Operating_system" title="Operating system">Operating systems</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Z80-RIO" title="Z80-RIO">Z80-RIO</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Related</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Z80_compatibles" scope="row" class="navbox-group" style="width:1%">Z80 <a href="/wiki/Backward_compatibility" title="Backward compatibility">compatibles</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/R800_(CPU)" class="mw-redirect" title="R800 (CPU)">ASCII R800</a></li> <li><a href="/wiki/Hitachi_HD64180" title="Hitachi HD64180">Hitachi HD64180</a>, <a href="/wiki/Hitachi_HD64180" title="Hitachi HD64180">Zilog Z64180</a></li> <li><a href="/wiki/NEC_%C2%B5PD780C" class="mw-redirect" title="NEC µPD780C">NEC µPD780C</a></li> <li><a href="/wiki/Sharp_LH0080" class="mw-redirect" title="Sharp LH0080">Sharp LH0080</a></li> <li><a href="/wiki/Toshiba_TLCS#870" title="Toshiba TLCS">Toshiba TLCS-870</a></li> <li><a href="/wiki/Rabbit_2000" title="Rabbit 2000">Rabbit 2000</a></li> <li><a href="/wiki/%D0%9A%D0%A01858%D0%92%D0%9C1" class="mw-redirect" title="КР1858ВМ1">КР1858ВМ1</a></li> <li><a class="mw-selflink selflink">U880</a></li> <li><a href="/wiki/MMN80CPU" title="MMN80CPU">MMN80CPU</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">People</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Federico_Faggin" title="Federico Faggin">Federico Faggin</a></li> <li><a href="/wiki/Ralph_Ungermann" title="Ralph Ungermann">Ralph Ungermann</a></li> <li><a href="/wiki/Masatoshi_Shima" title="Masatoshi Shima">Masatoshi Shima</a></li></ul> </div></td></tr></tbody></table></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" 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