component
STC32G8K64-42I-TSSOP20
Public Made by Adomby adom
STC Micro Microcontroller Units (MCUs/MPUs/SOCs), TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"version": "0.1.0",
"type": "component",
"description": "STC Micro Microcontroller Units (MCUs/MPUs/SOCs), TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"single chip microcomputer-microcontroller",
"stc32g8k64-42i-tssop20",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
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"component": {
"mpn": "STC32G8K64-42I-TSSOP20",
"manufacturer": "STC Micro",
"package": "TSSOP-20",
"pin_count": 20,
"category": "Single Chip Microcomputer/Microcontroller",
"subcategory": "Microcontroller Units (MCUs/MPUs/SOCs)",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/8fe4cdefdfe8ba1a5b5a614521aecf58.pdf",
"parts": {
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"lbr": "stc32g8k64-42i-tssop20.lbr"
},
"distributor_links": {
"lcsc": "C20611528"
},
"distributor_check": {
"checked_at": "2026-10-26T23:41:52Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "no match"
},
"mouser": {
"pn": null,
"status": "no match"
}
},
"pins": [
{
"number": "1",
"name": "P1.4",
"type": "bidirectional",
"description": "Standard I/O port pin with alternate functions ADC4, PWM3P, MISO, S1MISO, S2MISO and SDA (I2C data)."
},
{
"number": "2",
"name": "P1.5",
"type": "bidirectional",
"description": "Standard I/O port pin with alternate functions ADC5, PWM3N, SCLK, S1SCLK, S2SCLK, SCL and I2SCK_2."
},
{
"number": "3",
"name": "P1.6",
"type": "bidirectional",
"description": "Standard I/O port pin with alternate functions ADC6, RxD_3, PWM4P, MCLKO_2, XTALO (external crystal output) and I2SMCK_2/I2SMCK_4."
},
{
"number": "4",
"name": "P1.7",
"type": "bidirectional",
"description": "Standard I/O port pin with alternate functions ADC7, TxD_3, PWM4N, PWM5_2 and XTALI (external crystal or clock input)."
},
{
"number": "5",
"name": "P1.3",
"type": "bidirectional",
"description": "Standard I/O port pin with alternate functions ADC3, MOSI, S1MOSI, S2MOSI, PWM2N, T2CLKO and I2SData_2."
},
{
"number": "6",
"name": "P1.2",
"type": "bidirectional",
"description": "Standard I/O port pin with alternate functions PWM2P, SS, S1SS, S2SS and T2 (timer 2 external clock input)."
},
{
"number": "7",
"name": "P5.4",
"type": "bidirectional",
"description": "Standard I/O port pin that can be configured as the active-low reset input nRST, with alternate functions ADC2, MCLKO, SS and PWM6_2."
},
{
"number": "8",
"name": "Vcc",
"type": "power_in",
"description": "Power supply pin for the MCU core and I/O, which also feeds AVcc for the ADC."
},
{
"number": "9",
"name": "ADC_VRef+",
"type": "input",
"description": "ADC external reference voltage pin that must be connected to an external reference of 2.4V to MCU-VCC, since floating it causes leakage current."
},
{
"number": "10",
"name": "Gnd",
"type": "power_in",
"description": "Ground pin, which is also the ADC analog ground AGnd."
},
{
"number": "11",
"name": "P3.0",
"type": "bidirectional",
"description": "Standard I/O port pin with alternate functions UART1 receive RxD and external interrupt INT4, and it is weakly pulled up after power-on."
},
{
"number": "12",
"name": "P3.1",
"type": "bidirectional",
"description": "Standard I/O port pin with alternate function UART1 transmit TxD, and it is weakly pulled up after power-on."
},
{
"number": "13",
"name": "P3.2",
"type": "bidirectional",
"description": "Standard I/O port pin with alternate functions external interrupt INT0, SCLK_4, SCL_4, PWMETI, PWMETI2 and I2SCK; it is high level during power-on reset."
},
{
"number": "14",
"name": "P3.3",
"type": "bidirectional",
"description": "Standard I/O port pin with alternate functions external interrupt INT1, MISO_4, SDA_4, PWM4N_4 and PWM7_2."
},
{
"number": "15",
"name": "P3.4",
"type": "bidirectional",
"description": "Standard I/O port pin with alternate functions T0 external clock input, T1CLKO, MOSI_4, PWM4P_4, PWM8_2, comparator output CMPO and I2SData."
},
{
"number": "16",
"name": "P3.5",
"type": "bidirectional",
"description": "Standard I/O port pin with alternate functions T1 external clock input, T0CLKO, SS_4, PWM fault input PWMFLT and I2SLRCK."
},
{
"number": "17",
"name": "P3.6",
"type": "bidirectional",
"description": "Standard I/O port pin with alternate functions external interrupt INT2, UART1 receive RxD_2 and comparator negative input CMP-."
},
{
"number": "18",
"name": "P3.7",
"type": "bidirectional",
"description": "Standard I/O port pin with alternate functions external interrupt INT3, TxD_2 and comparator positive input CMP+."
},
{
"number": "19",
"name": "P1.1",
"type": "bidirectional",
"description": "Standard I/O port pin with alternate functions ADC1, PWM1N and UART2 transmit TxD2."
},
{
"number": "20",
"name": "P1.0",
"type": "bidirectional",
"description": "Standard I/O port pin with alternate functions ADC0, PWM1P and UART2 receive RxD2."
}
],
"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: The pin-description row for P3.7 (pin 18) falls on datasheet page 280, which is not in the supplied ; The STC32G8K64 pin table (page 274 diagram, pages 276-279 table) lists TSSOP20 pin numbers 1-20 and ",
"1/20 pins cited to the wrong page (name found elsewhere): ['6:P1.2@p277']"
],
"pages_sent": 108,
"cost_usd": 0.2304,
"at": "2026-10-26T23:41:24"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/8fe4cdefdfe8ba1a5b5a614521aecf58.pdf",
"pages": 1887,
"sha256": "59bba1d366cc8d33",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 20,
"described": 20,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
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},
"models_3d": [
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"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
6.4,
6.5,
1.2
],
"zmin_mm": -0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "97339947f3a7196470ec2f1d9f9b92bb2fc2ab66ad53be0cf105192585ef3c9a",
"checked": "2026-10-26",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "stc32g8k64-42i-tssop20-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
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"footprint_binding": "identity",
"sha256": "f3fd56538fbf7a7ef6a16c8092dd42d631eb6fd86637260b359a4c7815ae30d5",
"checked": "2026-10-26",
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}
}