component
HC32F003C4PA-TSSOP20TR
Public Made by Adomby adom
XHSC Microcontrollers (MCU/MPU/SOC), TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"component": {
"mpn": "HC32F003C4PA-TSSOP20TR",
"manufacturer": "XHSC",
"package": "TSSOP-20",
"pin_count": 20,
"category": "Embedded Processors & Controllers",
"subcategory": "Microcontrollers (MCU/MPU/SOC)",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588908171657662464",
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"checked_at": "2026-10-18T13:48:46Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "quota"
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"mouser": {
"pn": null,
"status": "quota"
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"pins": [
{
"number": "1",
"name": "AIN4/VCIN4/P34",
"type": "bidirectional",
"description": "General-purpose digital I/O P34, also analog input AIN4 / comparator input VC4, with PCA_CH0, TIM5_CHA, TIM0_EXT, TIM4_CHA and TIM1_TOG alternate functions."
},
{
"number": "2",
"name": "AIN5/VCIN5/P35",
"type": "bidirectional",
"description": "General-purpose digital I/O P35 (datasheet recommends reserving P35 and P36 as the ISP programming interface), also analog input AIN5 / VC5, with UART1_TXD, UART0_TXD, TIM6_CHB, TIM0_GATE, TIM4_CHB, SPI_MISO and I2C_SDA alternate functions."
},
{
"number": "3",
"name": "AIN6/VCIN6/AVREF/P36",
"type": "bidirectional",
"description": "General-purpose digital I/O P36 (datasheet recommends reserving P35 and P36 as the ISP programming interface), also analog input AIN6 / VC6 and AVREF external reference input, with UART1_RXD, UART0_RXD, TIM6_CHA, PCA_CH4, TIM5_CHA, SPI_MOSI and I2C_SCL alternate functions."
},
{
"number": "4",
"name": "RESETB/P00",
"type": "input",
"description": "RESETB is the active-low chip reset input with an internal pull-up that cannot be disconnected (about 80 kΩ at VIN = VSS); the pin can also be used as digital input P00."
},
{
"number": "5",
"name": "XTHI/AIN7/VCIN7/P01",
"type": "bidirectional",
"description": "General-purpose digital I/O P01, also external high-speed crystal oscillator input XTHI (4~32 MHz crystal), analog input AIN7 / VC7, with UART0_RXD, I2C_SDA, UART1_TXD, TIM0_TOG, TIM5_CHB, SPI_SCK and TIM2_EXT alternate functions."
},
{
"number": "6",
"name": "XTHO/AIN8/P02",
"type": "bidirectional",
"description": "General-purpose digital I/O P02, also external high-speed crystal oscillator output XTHO and analog input AIN8, with UART0_TXD, I2C_SCL, UART1_RXD, TIM0_TOGN, TIM6_CHA, SPI_CS and TIM2_GATE alternate functions."
},
{
"number": "7",
"name": "AVSS/DVSS",
"type": "power_in",
"description": "Ground (GND) for the analog and digital supply domains; all DVSS and AVSS pins must always be connected to the external supply system."
},
{
"number": "8",
"name": "VCAP",
"type": "power_out",
"description": "Output of the internal LDO core supply, for internal circuit use only; a 4.7 uF capacitor must be connected to this pin."
},
{
"number": "9",
"name": "AVCC/DVCC",
"type": "power_in",
"description": "Chip power supply, 1.8 to 5.5 V for both analog and digital domains; a decoupling capacitor must be placed as close as possible to this pin."
},
{
"number": "10",
"name": "LVDIN1/P03",
"type": "bidirectional",
"description": "General-purpose digital I/O P03, also LVD monitor input LVDIN1, with PCA_CH3, SPI_CS, TIM6_CHB, PCA_ECI and VC0_OUT alternate functions."
},
{
"number": "11",
"name": "P15",
"type": "bidirectional",
"description": "General-purpose digital I/O P15, with I2C_SDA, TIM2_TOG, TIM4_CHB, SPI_SCK, UART0_RXD and LVD_OUT alternate functions."
},
{
"number": "12",
"name": "P14",
"type": "bidirectional",
"description": "General-purpose digital I/O P14, with I2C_SCL, TIM2_TOGN, PCA external clock input (ECI), ADC_RDY, SPI_CS and UART0_TXD alternate functions."
},
{
"number": "13",
"name": "P23/LVDIN2/VCIN0",
"type": "bidirectional",
"description": "General-purpose digital I/O P23, also LVD monitor input LVDIN2 / comparator input VC0, with TIM6_CHA, TIM4_CHB, TIM4_CHA, PCA_CH0, SPI_MISO, UART1_TXD and IR_OUT (38 kHz carrier output) alternate functions."
},
{
"number": "14",
"name": "P24/AIN0",
"type": "bidirectional",
"description": "General-purpose digital I/O P24, also analog input AIN0, with TIM4_CHB, TIM5_CHB, HCLK_OUT, PCA_CH1, SPI_MOSI, UART1_RXD and VC1_OUT alternate functions."
},
{
"number": "15",
"name": "P25/LVDIN3/VC1",
"type": "bidirectional",
"description": "General-purpose digital I/O P25, also LVD monitor input LVDIN3 / comparator input VC1, with SPI_SCK, PCA_CH0, TIM5_CHA, LVD_OUT, I2C_SDA and TIM1_GATE alternate functions."
},
{
"number": "16",
"name": "P26/AIN1",
"type": "bidirectional",
"description": "General-purpose digital I/O P26, also analog input AIN1, with SPI_MOSI, TIM4_CHA, TIM5_CHB, PCA_CH2, I2C_SCL and TIM1_EXT alternate functions."
},
{
"number": "17",
"name": "P27/SWDIO",
"type": "bidirectional",
"description": "General-purpose digital I/O P27, also SWD debug data pin SWDIO (one of the SWD/ISP programming pin options), with SPI_MISO, TIM5_CHA, TIM6_CHA, PCA_CH3, UART0_RXD, RCH_OUT and XTH_OUT alternate functions."
},
{
"number": "18",
"name": "P31/SWCLK",
"type": "bidirectional",
"description": "General-purpose digital I/O P31, also SWD debug clock pin SWCLK (one of the SWD/ISP programming pin options), with PCA_ECI, PCLK_OUT, VC0OUT, UART0_TXD, RCL_OUT and HCLK_OUT alternate functions."
},
{
"number": "19",
"name": "P32/AIN2/VCIN2",
"type": "bidirectional",
"description": "General-purpose digital I/O P32, also analog input AIN2 / VC2, with PCA_CH2, TIM6_CHB, VC1OUT, UART1_TXD and PCA_CH4 alternate functions."
},
{
"number": "20",
"name": "P33/AIN3/VCIN3",
"type": "bidirectional",
"description": "General-purpose digital I/O P33, also analog input AIN3 / VC3, with PCA_CH1, TIM5_CHB, PCA_ECI, UART1_RXD and TIM1_TOGN alternate functions."
}
],
"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 TSSOP20 pinout comes from the package diagram on page 17 and matches the TSSOP20 column of the p; Pin 7 and pin 9 names differ between sources: the pin diagram prints AVSS/DVSS and AVCC/DVCC, while ; Type for VCAP (pin 8) is power_out, inferred from the datasheet 'Power' class and 'LDO core supply o"
],
"pages_sent": 40,
"cost_usd": 0.1386,
"at": "2026-10-18T13:48:29"
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"datasheet": {
"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588908171657662464",
"pages": 65,
"sha256": "74fd2ff9aa2d5d16",
"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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"checked": "2026-10-18",
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