[PIC] - No-Name chip replacement with PIC in a Chinese Toy

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It may not display this or other websites correctly.<br />You should upgrade or use an <a href="https://www.google.com/chrome/" target="_blank" rel="noopener">alternative browser</a>.</div> <div class="p-body-header"> <div class="p-title "> <h1 class="p-title-value"><span class="label label--primary" dir="auto">[PIC]</span><span class="label-append"> </span>No-Name chip replacement with PIC in a Chinese Toy</h1> </div> <div class="p-description"> <ul class="listInline listInline--bullet"> <li> <i class="fa--xf fal fa-user" aria-hidden="true" title="Thread starter"></i> <span class="u-srOnly">Thread starter</span> <a href="/members/jenom1957.691600/" class="username u-concealed" dir="auto" data-user-id="691600" data-xf-init="member-tooltip">jenom1957</a> </li> <li> <i class="fa--xf fal fa-clock" aria-hidden="true" title="Start date"></i> <span class="u-srOnly">Start date</span> <a href="/threads/no-name-chip-replacement-with-pic-in-a-chinese-toy.413110/" class="u-concealed"><time class="u-dt" dir="auto" datetime="2024-11-22T15:30:54+0000" data-time="1732289454" data-date-string="Nov 22, 2024" data-time-string="3:30 PM" title="Nov 22, 2024 at 3:30 PM">Yesterday at 3:30 PM</time></a> </li> </ul> </div> </div> <div class="p-body-main p-body-main--withSidebar "> <div class="p-body-contentCol"></div> <div class="p-body-sidebarCol"></div> <div class="p-body-content">  <div id='div-gpt-eda_wallpaper'> <script> googletag.cmd.push(function() { googletag.display('div-gpt-eda_wallpaper'); }); </script> </div> <div class="p-body-pageContent"> <div class="block block--messages " data-xf-init="lightbox select-to-quote" data-message-selector=".js-post" data-lb-id="thread-413110"> <div class="block-outer"></div> <div class="block-outer js-threadStatusField"></div> <div class="block-container"> <div class="block-body"> <article class="message message--post js-post js-inlineModContainer " data-author="jenom1957" data-content="post-1784377" id="js-post-1784377" > <span class="u-anchorTarget" id="post-1784377"></span> <div class="message-header"> <header class="message-attribution message-attribution--split"> <ul class="message-attribution-main listInline "> <li class="u-concealed"> <a href="/threads/no-name-chip-replacement-with-pic-in-a-chinese-toy.413110/post-1784377" rel="nofollow" > <time class="u-dt" dir="auto" datetime="2024-11-22T15:30:54+0000" data-time="1732289454" data-date-string="Nov 22, 2024" data-time-string="3:30 PM" title="Nov 22, 2024 at 3:30 PM">Yesterday at 3:30 PM</time> </a> </li> </ul> <ul class="message-attribution-opposite message-attribution-opposite--list "> <li> <a href="/threads/no-name-chip-replacement-with-pic-in-a-chinese-toy.413110/post-1784377" class="message-attribution-gadget" data-xf-init="share-tooltip" data-href="/posts/1784377/share" aria-label="Share" rel="nofollow"> <i class="fa--xf fal fa-share-alt" aria-hidden="true"></i> </a> </li> <li> <a href="/threads/no-name-chip-replacement-with-pic-in-a-chinese-toy.413110/post-1784377" rel="nofollow"> #1 </a> </li> </ul> </header> </div> <div class="message-inner"> <div class="message-cell message-cell--user"> <section class="message-user" > <div class="message-avatar "> <div class="message-avatar-wrapper"> <a href="/members/jenom1957.691600/" class="avatar avatar--m avatar--default avatar--default--dynamic" data-user-id="691600" data-xf-init="member-tooltip" style="background-color: #6699cc; color: #204060"> <span class="avatar-u691600-m" role="img" aria-label="jenom1957">J</span> </a> </div> </div> <div class="message-userDetails"> <h4 class="message-name"><a href="/members/jenom1957.691600/" class="username " dir="auto" data-user-id="691600" data-xf-init="member-tooltip">jenom1957</a></h4> <h5 class="userTitle message-userTitle" dir="auto">Newbie</h5> </div> <img src="/styles/images/ranks/alevel2.gif" alt="Newbie level 2"> <div class="message-userExtras"> <dl class="pairs pairs--justified joinedBlock"> <dt>Joined</dt> <dd>Nov 22, 2024</dd> </dl> <dl class="pairs pairs--justified pairs--xbBoxed"> <dt>Messages</dt> <dd>2</dd> </dl> <dl class="pairs pairs--justified"> <dt> Helped</dt> <dd>0</dd> </dl> <dl class="pairs pairs--justified"> <dt>Reputation </dt> <dd> <a href="/reputation/authors/jenom1957.691600" class="fauxBlockLink-linkRow u-concealed">0</a> </dd> </dl> <dl class="pairs pairs--justified"> <dt>Reaction score</dt> <dd>0</dd> </dl> <dl class="pairs pairs--justified pairs--xbBoxed trophyBlock"> <dt>Trophy points</dt> <dd>1</dd> </dl> <dl class="pairs pairs--justified creditBlock"> <dt title="Activity points">Activity points</dt> <dd> <a href="/activity/" data-xf-click="overlay" class="fauxBlockLink-blockLink u-concealed"> 20 </a> </dd> </dl> </div> <span class="message-userArrow"></span> </section> </div> <div class="message-cell message-cell--main"> <div class="message-main js-quickEditTarget"> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-1784377" data-lb-caption-desc="jenom1957 · Nov 22, 2024 at 3:30 PM"> <article class="message-body js-selectToQuote"> <div > <div class="bbWrapper">I have a dead no name 16 pin chip in a Chinese toy. It drives a small DC motor through 2 line to a motor controller .(TC118)<br /> Looking to replace a dead no-name chip with an easy to program PIC ( 12F ? 16F ?), all it has to do is to randomly run motor either in normal or reverse direction for a random length of time and in the same time to blink 1-2 LEDs.<br /> Attached is a picture of the PCB and data sheet of motor controller.<br /> Any suggestion will be appreciated!</div> </div> <div class="js-selectToQuoteEnd"> </div> </article> <section class="message-attachments"> <h4 class="block-textHeader">Attachments</h4> <ul class="attachmentList"> <li class="file file--linked"> <a class="u-anchorTarget" id="attachment-195491"></a> <script class="js-extraPhrases" type="application/json"> { "lightbox_close": "Close", "lightbox_next": "Next", "lightbox_previous": "Previous", "lightbox_error": "The requested content cannot be loaded. 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js-quickEditTarget"> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-1784378" data-lb-caption-desc="betwixt · Nov 22, 2024 at 3:58 PM"> <article class="message-body js-selectToQuote"> <div itemprop="text"> <div class="bbWrapper">Should be easy but if you could trace out some of the pins it would be useful, especially VSS and VDD so we can try to find something pin compatible. We can see pins 2 and 3 are outputs to operate the motor but does this device have any switches or sensors connected to the other pins? Are there any components on the reverse side?<br /> <br /> Brian.</div> </div> <div class="js-selectToQuoteEnd"> </div> </article> </div> </div> <footer class="message-footer"> <div class="message-microdata" itemprop="interactionStatistic" itemtype="https://schema.org/InteractionCounter" itemscope> <meta itemprop="userInteractionCount" content="0" /> <meta itemprop="interactionType" content="https://schema.org/LikeAction" /> </div> <div class="message-actionBar actionBar"> <div class="actionBar-set actionBar-set--external"> <a href="/threads/no-name-chip-replacement-with-pic-in-a-chinese-toy.413110/reply?quote=1784378" class="actionBar-action actionBar-action--reply" title="Reply, quoting this message" rel="nofollow" data-xf-click="quote" data-quote-href="/posts/1784378/quote">Reply</a> </div> </div> <div class="reactionsBar js-reactionsList "> </div> <br/> <div class="js-historyTarget message-historyTarget toggleTarget" data-href="trigger-href"></div> </footer> </div> </div> <div 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href="/threads/no-name-chip-replacement-with-pic-in-a-chinese-toy.413110/post-1784380" rel="nofollow"> #3 </a> </li> </ul> </header> </div> <div class="message-inner"> <div class="message-cell message-cell--user"> <section class="message-user" itemprop="author" itemscope itemtype="https://schema.org/Person" itemid="https://www.edaboard.com/members/jenom1957.691600/"> <meta itemprop="url" content="https://www.edaboard.com/members/jenom1957.691600/" /> <div class="message-avatar "> <div class="message-avatar-wrapper"> <a href="/members/jenom1957.691600/" class="avatar avatar--m avatar--default avatar--default--dynamic" data-user-id="691600" data-xf-init="member-tooltip" style="background-color: #6699cc; color: #204060"> <span class="avatar-u691600-m" role="img" aria-label="jenom1957">J</span> </a> </div> </div> <div class="message-userDetails"> <h4 class="message-name"><a href="/members/jenom1957.691600/" class="username " dir="auto" data-user-id="691600" data-xf-init="member-tooltip"><span itemprop="name">jenom1957</span></a></h4> <h5 class="userTitle message-userTitle" dir="auto" itemprop="jobTitle">Newbie</h5> </div> <img src="/styles/images/ranks/alevel2.gif" alt="Newbie level 2"> <div class="message-userExtras"> <dl class="pairs pairs--justified joinedBlock"> <dt>Joined</dt> <dd>Nov 22, 2024</dd> </dl> <dl class="pairs pairs--justified pairs--xbBoxed"> <dt>Messages</dt> <dd>2</dd> </dl> <dl class="pairs pairs--justified"> <dt> Helped</dt> <dd>0</dd> </dl> <dl class="pairs pairs--justified"> <dt>Reputation </dt> <dd> <a href="/reputation/authors/jenom1957.691600" class="fauxBlockLink-linkRow u-concealed">0</a> </dd> </dl> <dl class="pairs pairs--justified"> <dt>Reaction score</dt> <dd>0</dd> </dl> <dl class="pairs pairs--justified pairs--xbBoxed trophyBlock"> <dt>Trophy points</dt> <dd>1</dd> </dl> <dl class="pairs pairs--justified creditBlock"> <dt title="Activity points">Activity points</dt> <dd> <a href="/activity/" data-xf-click="overlay" class="fauxBlockLink-blockLink u-concealed"> 20 </a> </dd> </dl> </div> <span class="message-userArrow"></span> </section> </div> <div class="message-cell message-cell--main"> <div class="message-main js-quickEditTarget"> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-1784380" data-lb-caption-desc="jenom1957 · Nov 22, 2024 at 4:16 PM"> <article class="message-body js-selectToQuote"> <div itemprop="text"> <div class="bbWrapper">thank you for your reply, yes 2 & 3 is out to the motor controller.<br /> the other side contains a 3.7 V battery, DC Motor, "C" USB plug, battery charger IC, some LEDs and the push button switch.<br /> there is no sensor, it start working by manually & momentarily pushing the switch.<br /> Attached is the picture of the other side and I will trace out where all the other pins are going when I get home tonight.</div> </div> <div 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<span class="message-userArrow"></span> </section> </div> <div class="message-cell message-cell--main"> <div class="message-main js-quickEditTarget"> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-1784423" data-lb-caption-desc="D.A.(Tony)Stewart · Nov 23, 2024 at 12:56 AM"> <article class="message-body js-selectToQuote"> <div itemprop="text"> <div class="bbWrapper">It resembles a Rohm full bridge<br /> Is 2A enough? full speed reverse doubles the current.<br /> <br /> BD6212FP<br /> <br /> There are cheaper sources offshore<br /> <div class="bbCodeBlock bbCodeBlock--unfurl js-unfurl fauxBlockLink" data-unfurl="true" data-result-id="214899" data-url="https://www.digikey.ca/en/products/detail/rohm-semiconductor/BD6212FP-E2/1739143?msockid=115c7b32bc806bcf27616e0dbd126a24" data-host="www.digikey.ca" data-pending="false"> <div class="contentRow"> <div class="contentRow-main"> <h3 class="contentRow-header 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BD6212FP-E2 – Motor Driver Power MOSFET On/Off 25-HSOP from Rohm Semiconductor. Pricing and Availability on millions of electronic components from Digi-Key Electronics.</div> <div class="contentRow-minor contentRow-minor--hideLinks"> <span class="js-unfurl-favicon"> <img src="https://www.digikey.com/-/media/Images/Favicons/FAV32" alt="www.digikey.ca" class="bbCodeBlockUnfurl-icon" data-onerror="hide-parent"/> </span> www.digikey.ca </div> </div> </div> </div></div> </div> <div class="js-selectToQuoteEnd"> </div> </article> </div> </div> <footer class="message-footer"> <div class="message-microdata" itemprop="interactionStatistic" itemtype="https://schema.org/InteractionCounter" itemscope> <meta itemprop="userInteractionCount" content="0" /> <meta itemprop="interactionType" content="https://schema.org/LikeAction" /> </div> <div class="message-actionBar actionBar"> <div class="actionBar-set actionBar-set--external"> <a href="/threads/no-name-chip-replacement-with-pic-in-a-chinese-toy.413110/reply?quote=1784423" class="actionBar-action actionBar-action--reply" 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data-author="betwixt" data-content="post-1784442" id="js-post-1784442" itemscope itemtype="https://schema.org/Answer" itemid="https://www.edaboard.com/posts/1784442/"> <meta itemprop="parentItem" itemscope itemid="https://www.edaboard.com/threads/no-name-chip-replacement-with-pic-in-a-chinese-toy.413110/" /> <span class="u-anchorTarget" id="post-1784442"></span> <div class="message-header"> <header class="message-attribution message-attribution--split"> <ul class="message-attribution-main listInline "> <li class="u-concealed"> <a href="/threads/no-name-chip-replacement-with-pic-in-a-chinese-toy.413110/post-1784442" rel="nofollow" itemprop="url"> <time class="u-dt" dir="auto" datetime="2024-11-23T08:35:48+0000" data-time="1732350948" data-date-string="Nov 23, 2024" data-time-string="8:35 AM" title="Nov 23, 2024 at 8:35 AM" itemprop="datePublished">Today at 8:35 AM</time> </a> </li> </ul> <ul class="message-attribution-opposite message-attribution-opposite--list "> <li> <a 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class="avatar-u235638-m" width="96" height="96" loading="lazy" itemprop="image" /> </a> </div> </div> <div class="message-userDetails"> <h4 class="message-name"><a href="/members/betwixt.235638/" class="username " dir="auto" data-user-id="235638" data-xf-init="member-tooltip"><span class="username--staff username--moderator" itemprop="name">betwixt</span></a></h4> <h5 class="userTitle message-userTitle" dir="auto" itemprop="jobTitle">Super Moderator</h5> <div class="userBanner userBanner--staff message-userBanner" dir="auto" itemprop="jobTitle"><span class="userBanner-before"></span><strong>Staff member</strong><span class="userBanner-after"></span></div> </div> <img src="/styles/images/ranks/hlevel4.gif" alt="Advanced Member level 7"> <div class="message-userExtras"> <dl class="pairs pairs--justified joinedBlock"> <dt>Joined</dt> <dd>Jul 4, 2009</dd> </dl> <dl class="pairs pairs--justified pairs--xbBoxed"> <dt>Messages</dt> <dd>16,501</dd> </dl> <dl class="pairs pairs--justified"> <dt> Helped</dt> <dd>5,157</dd> </dl> <dl class="pairs pairs--justified"> <dt>Reputation </dt> <dd> <a href="/reputation/authors/betwixt.235638" class="fauxBlockLink-linkRow u-concealed">10,347</a> </dd> </dl> <dl class="pairs pairs--justified"> <dt>Reaction score</dt> <dd>5,207</dd> </dl> <dl class="pairs pairs--justified pairs--xbBoxed trophyBlock"> <dt>Trophy points</dt> <dd>1,393</dd> </dl> <dl class="pairs pairs--justified locationBlock"> <dt>Location</dt> <dd> <a href="/misc/location-info?location=Aberdyfi%2C+West+Wales%2C+UK" rel="nofollow noreferrer" target="_blank" class="u-concealed">Aberdyfi, West Wales, UK</a> </dd> </dl> <dl class="pairs pairs--justified creditBlock"> <dt title="Activity points">Activity points</dt> <dd> <a href="/activity/" data-xf-click="overlay" class="fauxBlockLink-blockLink u-concealed"> 139,582 </a> </dd> </dl> </div> <span class="message-userArrow"></span> </section> </div> <div class="message-cell message-cell--main"> <div class="message-main js-quickEditTarget"> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-1784442" data-lb-caption-desc="betwixt · Nov 23, 2024 at 8:35 AM"> <article class="message-body js-selectToQuote"> <div itemprop="text"> <div class="bbWrapper">I think its a replacement MCU they are asking for, not the motor driver. <br /> Programming one is a trivial task but there are few 16-pin PICs and if a drop-in replacement is needed it will have to be a reasonably good pin out match. Jenom1957 is trying to reverse engineer the PCB layout so we can at least identify the power pins.<br /> <br /> Brian.</div> </div> <div class="js-selectToQuoteEnd"> </div> </article> </div> </div> <footer class="message-footer"> <div class="message-microdata" itemprop="interactionStatistic" itemtype="https://schema.org/InteractionCounter" itemscope> <meta itemprop="userInteractionCount" content="0" /> <meta itemprop="interactionType" content="https://schema.org/LikeAction" /> </div> <div class="message-actionBar actionBar"> <div class="actionBar-set actionBar-set--external"> <a href="/threads/no-name-chip-replacement-with-pic-in-a-chinese-toy.413110/reply?quote=1784442" class="actionBar-action actionBar-action--reply" title="Reply, quoting this message" rel="nofollow" data-xf-click="quote" data-quote-href="/posts/1784442/quote">Reply</a> </div> </div> <div class="reactionsBar js-reactionsList "> </div> <br/> <div class="js-historyTarget message-historyTarget toggleTarget" 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<dd>1,413</dd> </dl> <dl class="pairs pairs--justified locationBlock"> <dt>Location</dt> <dd> <a href="/misc/location-info?location=Richmond+Hill%2C+ON%2C+Canada" rel="nofollow noreferrer" target="_blank" class="u-concealed">Richmond Hill, ON, Canada</a> </dd> </dl> <dl class="pairs pairs--justified creditBlock"> <dt title="Activity points">Activity points</dt> <dd> <a href="/activity/" data-xf-click="overlay" class="fauxBlockLink-blockLink u-concealed"> 63,098 </a> </dd> </dl> </div> <span class="message-userArrow"></span> </section> </div> <div class="message-cell message-cell--main"> <div class="message-main js-quickEditTarget"> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-1784443" data-lb-caption-desc="D.A.(Tony)Stewart · Nov 23, 2024 at 8:40 AM"> <article class="message-body js-selectToQuote"> <div itemprop="text"> <div class="bbWrapper">The toy is dead with a no-name 16-pin chip with heatsink pins, as I found from Rohm. The two ICs are the pre-driver and the driver. Is there a sensor not shown to control direction?</div> </div> <div class="js-selectToQuoteEnd"> </div> </article> </div> </div> <footer class="message-footer"> <div class="message-microdata" itemprop="interactionStatistic" itemtype="https://schema.org/InteractionCounter" itemscope> <meta itemprop="userInteractionCount" content="0" /> <meta itemprop="interactionType" content="https://schema.org/LikeAction" /> </div> <div class="message-actionBar actionBar"> <div class="actionBar-set actionBar-set--external"> <a href="/threads/no-name-chip-replacement-with-pic-in-a-chinese-toy.413110/reply?quote=1784443" class="actionBar-action actionBar-action--reply" title="Reply, quoting this message" rel="nofollow" data-xf-click="quote" data-quote-href="/posts/1784443/quote">Reply</a> </div> </div> <div class="reactionsBar js-reactionsList "> </div> <br/> <div class="js-historyTarget message-historyTarget toggleTarget" data-href="trigger-href"></div> </footer> </div> </div> <div class="message-cell 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href="/threads/no-name-chip-replacement-with-pic-in-a-chinese-toy.413110/post-1784450" rel="nofollow"> #7 </a> </li> </ul> </header> </div> <div class="message-inner"> <div class="message-cell message-cell--user"> <section class="message-user" itemprop="author" itemscope itemtype="https://schema.org/Person" itemid="https://www.edaboard.com/members/klausst.544298/"> <meta itemprop="url" content="https://www.edaboard.com/members/klausst.544298/" /> <div class="message-avatar "> <div class="message-avatar-wrapper"> <a href="/members/klausst.544298/" class="avatar avatar--m" data-user-id="544298" data-xf-init="member-tooltip"> <img src="/data/avatars/m/544/544298.jpg?1591959018" srcset="/data/avatars/l/544/544298.jpg?1591959018 2x" alt="KlausST" class="avatar-u544298-m" width="96" height="96" loading="lazy" itemprop="image" /> </a> </div> </div> <div class="message-userDetails"> <h4 class="message-name"><a href="/members/klausst.544298/" class="username " dir="auto" data-user-id="544298" data-xf-init="member-tooltip"><span itemprop="name">KlausST</span></a></h4> <h5 class="userTitle message-userTitle" dir="auto" itemprop="jobTitle">Advanced Member level 7</h5> </div> <img src="/styles/images/ranks/hlevel4.gif" alt="Advanced Member level 7"> <div class="message-userExtras"> <dl class="pairs pairs--justified joinedBlock"> <dt>Joined</dt> <dd>Apr 17, 2014</dd> </dl> <dl class="pairs pairs--justified pairs--xbBoxed"> <dt>Messages</dt> <dd>26,150</dd> </dl> <dl class="pairs pairs--justified"> <dt> Helped</dt> <dd>4,921</dd> </dl> <dl class="pairs pairs--justified"> <dt>Reputation </dt> <dd> <a href="/reputation/authors/klausst.544298" class="fauxBlockLink-linkRow u-concealed">9,867</a> </dd> </dl> <dl class="pairs pairs--justified"> <dt>Reaction score</dt> <dd>5,769</dd> </dl> <dl class="pairs pairs--justified pairs--xbBoxed trophyBlock"> <dt>Trophy points</dt> <dd>1,393</dd> </dl> <dl class="pairs pairs--justified creditBlock"> <dt title="Activity points">Activity points</dt> <dd> <a href="/activity/" data-xf-click="overlay" class="fauxBlockLink-blockLink u-concealed"> 175,784 </a> </dd> </dl> </div> <span class="message-userArrow"></span> </section> </div> <div class="message-cell message-cell--main"> <div class="message-main js-quickEditTarget"> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-1784450" data-lb-caption-desc="KlausST · Nov 23, 2024 at 9:08 AM"> <article class="message-body js-selectToQuote"> <div itemprop="text"> <div class="bbWrapper">I see no heatsink pin.<br /> <br /> I see one not soldered pin --> which is quite the opposite of a heatsink function.<br /> <br /> Klaus</div> </div> <div class="js-selectToQuoteEnd"> </div> </article> </div> </div> <footer class="message-footer"> <div class="message-microdata" itemprop="interactionStatistic" itemtype="https://schema.org/InteractionCounter" itemscope> <meta itemprop="userInteractionCount" content="0" /> 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Are you sure you want to submit this form?", attach: "Attach files", rich_text_box: "Rich text box", close: "Close", link_copied_to_clipboard: "Link copied to clipboard.", text_copied_to_clipboard: "Text copied to clipboard.", loading: "Loading…", you_have_exceeded_maximum_number_of_selectable_items: "You have exceeded the maximum number of selectable items.", processing: "Processing", 'processing...': "Processing…", showing_x_of_y_items: "Showing {count} of {total} items", showing_all_items: "Showing all items", no_items_to_display: "No items to display", number_button_up: "Increase", number_button_down: "Decrease", push_enable_notification_title: "Push notifications enabled successfully at Forum for Electronics", push_enable_notification_body: "Thank you for enabling push notifications!", pull_down_to_refresh: "Pull down to refresh", release_to_refresh: "Release to refresh", refreshing: "Refreshing…" , "svStandardLib_time.day": "{count} day", "svStandardLib_time.days": "{count} days", "svStandardLib_time.hour": "{count} hour", "svStandardLib_time.hours": "{count} hours", "svStandardLib_time.minute": "{count} minutes", "svStandardLib_time.minutes": "{count} minutes", "svStandardLib_time.month": "{count} month", "svStandardLib_time.months": "{count} months", "svStandardLib_time.second": "{count} second", "svStandardLib_time.seconds": "{count} seconds", "svStandardLib_time.week": "time.week", "svStandardLib_time.weeks": "{count} weeks", "svStandardLib_time.year": "{count} year", "svStandardLib_time.years": "{count} years" }); </script> <form style="display:none" hidden="hidden"> <input type="text" name="_xfClientLoadTime" value="" id="_xfClientLoadTime" title="_xfClientLoadTime" tabindex="-1" /> </form>  <script type="application/ld+json"> { "@context": "https://schema.org", "@type": "QAPage", "url": "https://www.edaboard.com/threads/no-name-chip-replacement-with-pic-in-a-chinese-toy.413110/", "mainEntity": { "@type": "Question", "@id": "https://www.edaboard.com/threads/no-name-chip-replacement-with-pic-in-a-chinese-toy.413110/", "name": "No-Name chip replacement with PIC in a Chinese Toy", "datePublished": "2024-11-22T15:30:54+00:00", "url": "https://www.edaboard.com/threads/no-name-chip-replacement-with-pic-in-a-chinese-toy.413110/", "image": "https://www.edaboard.com/attachments/main-pcb-jpg.195491/", "text": "I have a dead no name 16 pin chip in a Chinese toy. It drives a small DC motor through 2 line to a motor controller .(TC118)\nLooking to replace a dead no-name chip with an easy to program PIC ( 12F ? 16F ?), all it has to do is to randomly run motor either in normal or reverse direction for a random length of time and in the same time to blink 1-2 LEDs.\nAttached is a picture of the PCB and data sheet of motor controller.\nAny suggestion will be appreciated!", "answerCount": 6, "upvoteCount": 0, "author": { "@type": "Person", "@id": "https://www.edaboard.com/members/jenom1957.691600/", "name": "jenom1957", "url": "https://www.edaboard.com/members/jenom1957.691600/" }, "suggestedAnswer": [ { "@type": "Answer", "datePublished": "2024-11-23T09:08:07+00:00", "url": "https://www.edaboard.com/posts/1784450/", "text": "I see no heatsink pin.\n\nI see one not soldered pin --> which is quite the opposite of a heatsink function.\n\nKlaus", "upvoteCount": 0, "author": { "@type": "Person", "@id": "https://www.edaboard.com/members/klausst.544298/", "name": "KlausST", "url": "https://www.edaboard.com/members/klausst.544298/" } }, { "@type": "Answer", "datePublished": "2024-11-23T08:40:49+00:00", "url": "https://www.edaboard.com/posts/1784443/", "text": "The toy is dead with a no-name 16-pin chip with heatsink pins, as I found from Rohm. The two ICs are the pre-driver and the driver. Is there a sensor not shown to control direction?", "upvoteCount": 0, "author": { "@type": "Person", "@id": "https://www.edaboard.com/members/d-a-tony-stewart.134022/", "name": "D.A.(Tony)Stewart", "url": "https://www.edaboard.com/members/d-a-tony-stewart.134022/" } }, { "@type": "Answer", "datePublished": "2024-11-23T08:35:48+00:00", "url": "https://www.edaboard.com/posts/1784442/", "text": "I think its a replacement MCU they are asking for, not the motor driver. \nProgramming one is a trivial task but there are few 16-pin PICs and if a drop-in replacement is needed it will have to be a reasonably good pin out match. Jenom1957 is trying to reverse engineer the PCB layout so we can at least identify the power pins.\n\nBrian.", "upvoteCount": 0, "author": { "@type": "Person", "@id": "https://www.edaboard.com/members/betwixt.235638/", "name": "betwixt", "url": "https://www.edaboard.com/members/betwixt.235638/" } } ] }, "publisher": { "@type": "Organization", "name": "Forum for Electronics", "description": "International Electronics Discussion Forum: EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals", "url": "https://www.edaboard.com" } } </script> <script> $(function(){ var notice = $('.xb-welcome-notice'); if(notice.length){ var cookie = XF.Cookie.get('hide_welcome_notice'); if(!cookie){ XF.Cookie.set('hide_welcome_notice', Date.now()); notice.show(); } else if ((Date.now() - cookie) > 8.64e+7){ XF.Cookie.set('hide_welcome_notice', Date.now()); notice.show(); } else { notice.hide(); } } }); </script> </div> </body> </html>

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[PIC] - No-Name chip replacement with PIC in a Chinese Toy | Forum for Electronics