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STM32F103C8T6 - Arm Cortex-M3 MCU (Blue Pill)
Public Made by Adomby adom
STMicroelectronics mainstream Arm Cortex-M3 MCU. 72 MHz, 64 KB Flash, 20 KB SRAM, USB, CAN, LQFP-48. The workhorse Blue Pill microcontroller.
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<div class=bar><span class=h>PCB footprint</span><span class=sp></span><button class="lyrtog on" data-lyr="copper"><span class="d" style="background:#e35d5d"></span>Copper</button><button class="lyrtog on" data-lyr="silk"><span class="d" style="background:#e6edf3"></span>Silkscreen</button><button class="lyrtog" data-lyr="fab"><span class="d" style="background:#8b949e"></span>Fab</button><button class="lyrtog" data-lyr="courtyard"><span class="d" style="background:#bc8cff"></span>Courtyard</button></div>
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x='3.425' y='-0.900' width='1.475' height='0.300' rx='0.075' fill='#f59e0b' opacity='0.9'/><rect class='ly-copper pad' data-num='33' data-name='PA12' x='3.425' y='-1.400' width='1.475' height='0.300' rx='0.075' fill='#f59e0b' opacity='0.9'/><rect class='ly-copper pad' data-num='34' data-name='PA13' x='3.425' y='-1.900' width='1.475' height='0.300' rx='0.075' fill='#f59e0b' opacity='0.9'/><rect class='ly-copper pad' data-num='35' data-name='VSS_2' x='3.425' y='-2.400' width='1.475' height='0.300' rx='0.075' fill='#f59e0b' opacity='0.9'/><rect class='ly-copper pad' data-num='36' data-name='VDD_2' x='3.425' y='-2.900' width='1.475' height='0.300' rx='0.075' fill='#f59e0b' opacity='0.9'/><rect class='ly-copper pad' data-num='37' data-name='PA14' x='2.600' y='-4.900' width='0.300' height='1.475' rx='0.075' fill='#f59e0b' opacity='0.9'/><rect class='ly-copper pad' data-num='38' data-name='PA15' x='2.100' y='-4.900' width='0.300' height='1.475' rx='0.075' fill='#f59e0b' opacity='0.9'/><rect class='ly-copper pad' data-num='39' data-name='PB3' x='1.600' y='-4.900' width='0.300' height='1.475' rx='0.075' fill='#f59e0b' opacity='0.9'/><rect class='ly-copper pad' data-num='40' data-name='PB4' x='1.100' y='-4.900' width='0.300' height='1.475' rx='0.075' fill='#f59e0b' opacity='0.9'/><rect class='ly-copper pad' data-num='41' data-name='PB5' x='0.600' y='-4.900' width='0.300' height='1.475' rx='0.075' fill='#f59e0b' opacity='0.9'/><rect class='ly-copper pad' data-num='42' data-name='PB6' x='0.100' y='-4.900' width='0.300' height='1.475' rx='0.075' fill='#f59e0b' opacity='0.9'/><rect class='ly-copper pad' data-num='43' data-name='PB7' x='-0.400' y='-4.900' width='0.300' height='1.475' rx='0.075' fill='#f59e0b' opacity='0.9'/><rect class='ly-copper pad' data-num='44' data-name='BOOT0' x='-0.900' y='-4.900' width='0.300' height='1.475' rx='0.075' fill='#f59e0b' opacity='0.9'/><rect class='ly-copper pad' data-num='45' data-name='PB8' x='-1.400' y='-4.900' width='0.300' height='1.475' 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<div id=tip></div>
<script>
var KIND="footprint", MPN="STM32F103C8T6", PINS=[{"desc":"GPIO port C bit 13, muxed with TAMPER input and RTC output.","name":"PC13-TAMPER-RTC","number":"2","type":"Bidir"},{"desc":"GPIO port A bit 0, 5 V-tolerant when configured as digital input.","name":"PA0-WKUP","number":"10","type":"Bidir"},{"desc":"GPIO port A bit 1.","name":"PA1","number":"11","type":"Bidir"},{"desc":"GPIO port A bit 2.","name":"PA2","number":"12","type":"Bidir"},{"desc":"GPIO port A bit 3.","name":"PA3","number":"13","type":"Bidir"},{"desc":"GPIO port A bit 4.","name":"PA4","number":"14","type":"Bidir"},{"desc":"GPIO port A bit 5.","name":"PA5","number":"15","type":"Bidir"},{"desc":"GPIO port A bit 6.","name":"PA6","number":"16","type":"Bidir"},{"desc":"GPIO port A bit 7.","name":"PA7","number":"17","type":"Bidir"},{"desc":"GPIO port B bit 0.","name":"PB0","number":"18","type":"Bidir"},{"desc":"GPIO port B bit 1.","name":"PB1","number":"19","type":"Bidir"},{"desc":"GPIO port B bit 2, 5 V-tolerant.","name":"PB2","number":"20","type":"Bidir"},{"desc":"GPIO port B bit 10, 5 V-tolerant.","name":"PB10","number":"21","type":"Bidir"},{"desc":"GPIO port B bit 11, 5 V-tolerant.","name":"PB11","number":"22","type":"Bidir"},{"desc":"GPIO port B bit 12, 5 V-tolerant.","name":"PB12","number":"25","type":"Bidir"},{"desc":"GPIO port B bit 13, 5 V-tolerant.","name":"PB13","number":"26","type":"Bidir"},{"desc":"GPIO port B bit 14, 5 V-tolerant.","name":"PB14","number":"27","type":"Bidir"},{"desc":"GPIO port B bit 15, 5 V-tolerant.","name":"PB15","number":"28","type":"Bidir"},{"desc":"GPIO port A bit 8, 5 V-tolerant.","name":"PA8","number":"29","type":"Bidir"},{"desc":"GPIO port A bit 9, 5 V-tolerant.","name":"PA9","number":"30","type":"Bidir"},{"desc":"GPIO port A bit 10, 5 V-tolerant.","name":"PA10","number":"31","type":"Bidir"},{"desc":"GPIO port B bit 5 (NOT 5 V-tolerant on this pin).","name":"PB5","number":"41","type":"Bidir"},{"desc":"GPIO port B bit 6, 5 V-tolerant.","name":"PB6","number":"42","type":"Bidir"},{"desc":"GPIO port B bit 7, 5 V-tolerant.","name":"PB7","number":"43","type":"Bidir"},{"desc":"GPIO port B bit 8, 5 V-tolerant.","name":"PB8","number":"45","type":"Bidir"},{"desc":"GPIO port B bit 9, 5 V-tolerant.","name":"PB9","number":"46","type":"Bidir"},{"desc":"Backup battery supply for RTC and backup registers.","name":"VBAT","number":"1","type":"Power"},{"desc":"Analog ground reference for ADC, reset block, PLL, and analog peripherals.","name":"VSSA","number":"8","type":"Power"},{"desc":"Analog supply for ADC, reset block, PLL, and analog I/O.","name":"VDDA","number":"9","type":"Power"},{"desc":"Digital ground, group 1.","name":"VSS_1","number":"23","type":"Power"},{"desc":"Digital supply, group 1.","name":"VDD_1","number":"24","type":"Power"},{"desc":"Digital ground, group 2.","name":"VSS_2","number":"35","type":"Power"},{"desc":"Digital supply, group 2.","name":"VDD_2","number":"36","type":"Power"},{"desc":"Digital ground, group 3.","name":"VSS_3","number":"47","type":"Power"},{"desc":"Digital supply, group 3.","name":"VDD_3","number":"48","type":"Power"},{"desc":"GPIO port C bit 14, muxed with 32 kHz LSE oscillator input (OSC32_IN).","name":"PC14-OSC32_IN","number":"3","type":"Bidir"},{"desc":"GPIO port C bit 15, muxed with 32 kHz LSE oscillator output (OSC32_OUT).","name":"PC15-OSC32_OUT","number":"4","type":"Bidir"},{"desc":"HSE crystal oscillator input (OSC_IN) after reset; remappable to GPIO PD0 by software.","name":"PD0-OSC_IN","number":"5","type":"Bidir"},{"desc":"HSE crystal oscillator output (OSC_OUT) after reset; remappable to GPIO PD1 by software.","name":"PD1-OSC_OUT","number":"6","type":"Bidir"},{"desc":"Active-low bidirectional device reset.","name":"NRST","number":"7","type":"Bidir"},{"desc":"Boot mode selection input sampled at reset (with BOOT1/PB2): selects boot from Flash, System memory (bootloader), or embedded SRAM.","name":"BOOT0","number":"44","type":"Input"},{"desc":"GPIO port A bit 11, 5 V-tolerant.","name":"PA11","number":"32","type":"Bidir"},{"desc":"GPIO port A bit 12, 5 V-tolerant.","name":"PA12","number":"33","type":"Bidir"},{"desc":"GPIO port A bit 13, 5 V-tolerant.","name":"PA13","number":"34","type":"Bidir"},{"desc":"GPIO port A bit 14, 5 V-tolerant.","name":"PA14","number":"37","type":"Bidir"},{"desc":"GPIO port A bit 15, 5 V-tolerant.","name":"PA15","number":"38","type":"Bidir"},{"desc":"GPIO port B bit 3, 5 V-tolerant.","name":"PB3","number":"39","type":"Bidir"},{"desc":"GPIO port B bit 4, 5 V-tolerant.","name":"PB4","number":"40","type":"Bidir"}];
var byNum={}; PINS.forEach(function(p){byNum[String(p.number)]=p;});
var stage=document.getElementById('stage'), svg=stage.querySelector('svg'), tip=document.getElementById('tip');
// ---- pan/zoom ----
var vb=(svg.getAttribute('viewBox')||'0 0 100 100').split(/\s+/).map(Number), base=vb.slice();
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var pan=null;
stage.addEventListener('pointerdown',function(e){pan={x:e.clientX,y:e.clientY};stage.classList.add('drag');stage.setPointerCapture(e.pointerId);});
stage.addEventListener('pointermove',function(e){if(!pan)return;var r=stage.getBoundingClientRect();vb[0]-=(e.clientX-pan.x)/r.width*vb[2];vb[1]-=(e.clientY-pan.y)/r.height*vb[3];pan={x:e.clientX,y:e.clientY};setVB();});
function endPan(){pan=null;stage.classList.remove('drag');}
stage.addEventListener('pointerup',endPan);stage.addEventListener('pointerleave',endPan);
stage.addEventListener('dblclick',function(){vb=base.slice();setVB();});
// ---- cross-highlight bus ----
function els(n){return [].slice.call(document.querySelectorAll('[data-num="'+n+'"]'));}
function clearHi(){[].slice.call(document.querySelectorAll('.hi')).forEach(function(e){e.classList.remove('hi');});}
function hi(n){els(n).forEach(function(e){e.classList.add('hi');});}
function post(n){try{parent.postMessage({type:'lbr-hover',pin:n===null?null:String(n),mpn:MPN},'*');}catch(_){}}
function showTip(n,x,y){var p=byNum[String(n)];if(!p)return;tip.innerHTML='<span class=tn></span><div class=tt></div><div class=td></div>';tip.querySelector('.tn').textContent=n+' '+(p.name||'');tip.querySelector('.tt').textContent=p.type||'';var d=p.desc||'';if(d)tip.querySelector('.td').textContent=d;else tip.querySelector('.td').style.display='none';tip.style.display='block';tip.style.left=(x+14)+'px';tip.style.top=(y+12)+'px';}
[].slice.call(document.querySelectorAll('.pingroup,.pad')).forEach(function(g){
var n=g.getAttribute('data-num');
g.addEventListener('mouseenter',function(e){clearHi();hi(n);post(n);showTip(n,e.clientX,e.clientY);});
g.addEventListener('mousemove',function(e){tip.style.left=(e.clientX+14)+'px';tip.style.top=(e.clientY+12)+'px';});
g.addEventListener('mouseleave',function(){clearHi();post(null);tip.style.display='none';});
});
window.addEventListener('message',function(e){var d=e.data||{};if(d.type!=='lbr-hover')return;clearHi();if(d.pin!=null)hi(d.pin);});
// ---- footprint layer toggles ----
[].slice.call(document.querySelectorAll('.lyrtog')).forEach(function(b){
function apply(on){[].slice.call(document.querySelectorAll('.ly-'+b.getAttribute('data-lyr'))).forEach(function(el){el.classList.toggle('lyr-off',!on);});}
apply(b.classList.contains('on'));
b.addEventListener('click',function(){apply(b.classList.toggle('on'));});
});
// ---- auto-grow the host readme iframe ----
function ph(){var h=Math.max(360,Math.min(16000,document.body.scrollHeight||420));parent.postMessage({type:'readme-height',height:h},'*');}
window.addEventListener('load',ph);setTimeout(ph,300);
</script>
</body></html>