component
STM8S105K4T3CTR
Public Made by Adomby adom
STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-32(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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{
"schema_version": 1,
"type": "component",
"slug": "stm8s105k4t3ctr",
"title": "STM8S105K4T3CTR",
"brief": "STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-32(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
"license": "CC-BY-SA-4.0",
"tags": [
"component",
"embedded processors & controllers",
"stm8s105k4t3ctr",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "STM8S105K4T3CTR",
"manufacturer": "STMicroelectronics",
"package": "LQFP-32(7x7)",
"pin_count": 32,
"category": "Embedded Processors & Controllers",
"subcategory": "Microcontrollers (MCU/MPU/SOC)",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588942639186259968",
"parts": {
"symbol": "stm8s105k4t3ctr.kicad_sym",
"footprint": "stm8s105k4t3ctr.kicad_mod",
"model_3d": "stm8s105k4t3ctr-hero.glb",
"model_3d_plain": "stm8s105k4t3ctr.glb",
"model_3d_step": "stm8s105k4t3ctr-etched.step",
"model_3d_step_plain": "stm8s105k4t3ctr.step",
"lbr": "stm8s105k4t3ctr.lbr"
},
"distributor_links": {
"lcsc": "C2053291",
"digikey": "497-19028-2-ND",
"mouser": "511-STM8S105K4T3CTR"
},
"distributor_check": {
"checked_at": "2026-10-08T14:55:23Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "497-19028-2-ND",
"status": "found",
"lifecycle": "Active"
},
"mouser": {
"pn": "511-STM8S105K4T3CTR",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "NRST",
"type": "bidirectional",
"description": "Reset input/output pin (I/O, no alternate function listed)."
},
{
"number": "2",
"name": "PA1/OSCIN",
"type": "bidirectional",
"description": "Port A1 I/O (slow, up to 2 MHz, O1) whose alternate function is resonator/crystal input OSCIN, or external clock input when OPT4 EXTCLK=1."
},
{
"number": "3",
"name": "PA2/OSCOUT",
"type": "bidirectional",
"description": "Port A2 I/O (slow, up to 2 MHz, O1) whose alternate function is resonator/crystal output OSCOUT."
},
{
"number": "4",
"name": "VSS",
"type": "power_in",
"description": "Digital ground."
},
{
"number": "5",
"name": "VCAP",
"type": "passive",
"description": "Connection for the 1.8 V regulator external capacitor."
},
{
"number": "6",
"name": "VDD",
"type": "power_in",
"description": "Digital power supply; device operating voltage is 2.95 to 5.5 V."
},
{
"number": "7",
"name": "VDDIO",
"type": "power_in",
"description": "I/O power supply (listed as VDDIO_1 in the table)."
},
{
"number": "8",
"name": "PF4/AIN12",
"type": "bidirectional",
"description": "Port F4 I/O (slow, O1) with analog input 12; pulled up during reset, floating input after reset release, and AIN12 is not selectable in ADC scan mode or with analog watchdog."
},
{
"number": "9",
"name": "VDDA",
"type": "power_in",
"description": "Analog power supply."
},
{
"number": "10",
"name": "VSSA",
"type": "power_in",
"description": "Analog ground."
},
{
"number": "11",
"name": "PB5/AIN5",
"type": "bidirectional",
"description": "Port B5 I/O (slow, O1, external interrupt) with analog input 5; I2C_SDA after remap with option bit AFR6."
},
{
"number": "12",
"name": "PB4/AIN4",
"type": "bidirectional",
"description": "Port B4 I/O (slow, O1, external interrupt) with analog input 4; I2C_SCL after remap with option bit AFR6."
},
{
"number": "13",
"name": "PB3/AIN3",
"type": "bidirectional",
"description": "Port B3 I/O (slow, O1, external interrupt) with analog input 3; TIM1_ETR after remap with option bit AFR5."
},
{
"number": "14",
"name": "PB2/AIN2",
"type": "bidirectional",
"description": "Port B2 I/O (slow, O1, external interrupt) with analog input 2; TIM1_CH3N after remap with option bit AFR5."
},
{
"number": "15",
"name": "PB1/AIN1",
"type": "bidirectional",
"description": "Port B1 I/O (slow, O1, external interrupt) with analog input 1; TIM1_CH2N after remap with option bit AFR5."
},
{
"number": "16",
"name": "PB0/AIN0",
"type": "bidirectional",
"description": "Port B0 I/O (slow, O1, external interrupt) with analog input 0; TIM1_CH1N after remap with option bit AFR5."
},
{
"number": "17",
"name": "PE5/SPI_NSS",
"type": "bidirectional",
"description": "Port E5 I/O (slow, O1, external interrupt) used as SPI master/slave select."
},
{
"number": "18",
"name": "PC1/TIM1_CH1/UART2_CK",
"type": "bidirectional",
"description": "Port C1 high-sink I/O (O3, external interrupt) used as Timer 1 channel 1 or UART2 synchronous clock."
},
{
"number": "19",
"name": "PC2/TIM1_CH2",
"type": "bidirectional",
"description": "Port C2 high-sink I/O (O3, external interrupt) used as Timer 1 channel 2."
},
{
"number": "20",
"name": "PC3/TIM1_CH3",
"type": "bidirectional",
"description": "Port C3 high-sink I/O (O3, external interrupt) used as Timer 1 channel 3."
},
{
"number": "21",
"name": "PC4/TIM1_CH4",
"type": "bidirectional",
"description": "Port C4 high-sink I/O (O3, external interrupt) used as Timer 1 channel 4."
},
{
"number": "22",
"name": "PC5/SPI_SCK",
"type": "bidirectional",
"description": "Port C5 high-sink I/O (O3) used as SPI clock."
},
{
"number": "23",
"name": "PC6/SPI_MOSI",
"type": "bidirectional",
"description": "Port C6 high-sink I/O (O3, external interrupt) used as SPI master out/slave in."
},
{
"number": "24",
"name": "PC7/SPI_MISO",
"type": "bidirectional",
"description": "Port C7 high-sink I/O (O3, external interrupt) used as SPI master in/slave out."
},
{
"number": "25",
"name": "PD0/TIM3_CH2",
"type": "bidirectional",
"description": "Port D0 high-sink I/O (O3, external interrupt) used as Timer 3 channel 2; TIM1_BKIN with AFR3 or CLK_CCO with AFR2 after remap."
},
{
"number": "26",
"name": "PD1/SWIM",
"type": "bidirectional",
"description": "Port D1 high-sink I/O (O4, external interrupt) used as SWIM data interface; input pull-up during reset and after internal reset release."
},
{
"number": "27",
"name": "PD2/TIM3_CH1",
"type": "bidirectional",
"description": "Port D2 high-sink I/O (O3, external interrupt) used as Timer 3 channel 1; TIM2_CH3 after remap with option bit AFR1."
},
{
"number": "28",
"name": "PD3/TIM2_CH2",
"type": "bidirectional",
"description": "Port D3 high-sink I/O (O3, external interrupt) used as Timer 2 channel 2; ADC_ETR after remap with option bit AFR0."
},
{
"number": "29",
"name": "PD4/TIM2_CH1",
"type": "bidirectional",
"description": "Port D4 high-sink I/O (O3, external interrupt) used as Timer 2 channel 1; BEEP output after remap with option bit AFR7."
},
{
"number": "30",
"name": "PD5/UART2_TX",
"type": "bidirectional",
"description": "Port D5 I/O (slow, O1, external interrupt) used as UART2 data transmit."
},
{
"number": "31",
"name": "PD6/UART2_RX",
"type": "bidirectional",
"description": "Port D6 I/O (slow, O1, external interrupt) used as UART2 data receive."
},
{
"number": "32",
"name": "PD7/TLI",
"type": "bidirectional",
"description": "Port D7 I/O (slow, O1, external interrupt) used as top level interrupt; TIM1_CH4 after remap with option bit AFR4."
}
],
"provenance": {
"extractor": "extract_pins 0.3",
"factory_chain": {
"factory": "2.0.0",
"extractor": "extract_pins 0.3",
"primary_model": "claude-haiku-5-5",
"primary_mode": "text",
"consensus_model": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: Table 5 lists one pin-number column per package. The LQFP32 pin numbers were taken from the 'LQFP32/; Pin 5 VCAP is typed 'passive' because the datasheet classes it as a supply pin (S) but describes it ; Datasheet Table 5 lists PA2/OSCOUT under 'Port A1' in its description column, which appears to be a "
],
"pages_sent": 55,
"cost_usd": 0.2176,
"at": "2026-10-08T14:54:59"
},
"datasheet": {
"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588942639186259968",
"pages": 121,
"sha256": "b1007bc27bb78327",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 32,
"described": 32,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
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"footprint": "viewers/footprint.html"
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"zmin_mm": 0,
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"footprint_binding": "identity",
"sha256": "be0e412f1c66fee70039b0e109e0cc7c823161dda97593718afa97569bc61ce3",
"checked": "2026-10-08",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "stm8s105k4t3ctr-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
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"footprint_binding": "identity",
"sha256": "d1f4be3f1d0936a03f1ea70805f14c5fcc9abc7db84aae8197427a1133a77bc2",
"checked": "2026-10-08",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "STMicroelectronics",
"Package": "LQFP-32(7x7)",
"Category": "Embedded Processors & Controllers",
"Pins": "32"
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"stm8s105k4t3ctr"
],
"discovery_pitch": "STM8S105K4T3CTR (STMicroelectronics) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
"author": {
"name": "Ray",
"email": "[email protected]"
},
"dependencies": {},
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"files": [
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