component
CH32F203VCT6
Public Made by Adomby adom
WCH(Jiangsu Qin Heng) Microcontroller Units (MCUs/MPUs/SOCs), LQFP-100(14x14). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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{
"schema_version": 1,
"type": "component",
"slug": "ch32f203vct6",
"title": "CH32F203VCT6",
"brief": "WCH(Jiangsu Qin Heng) Microcontroller Units (MCUs/MPUs/SOCs), LQFP-100(14x14). 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",
"single chip microcomputer-microcontroller",
"ch32f203vct6",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "CH32F203VCT6",
"manufacturer": "WCH(Jiangsu Qin Heng)",
"package": "LQFP-100(14x14)",
"pin_count": 100,
"category": "Single Chip Microcomputer/Microcontroller",
"subcategory": "Microcontroller Units (MCUs/MPUs/SOCs)",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/afc0feb21c8aa8140c79dc15add72318.pdf",
"parts": {
"symbol": "ch32f203vct6.kicad_sym",
"footprint": "ch32f203vct6.kicad_mod",
"model_3d": "ch32f203vct6-hero.glb",
"model_3d_plain": "ch32f203vct6-etched.glb",
"model_3d_step": "ch32f203vct6-etched.step",
"model_3d_step_plain": "ch32f203vct6.step",
"lbr": "ch32f203vct6.lbr"
},
"distributor_links": {
"lcsc": "C5128253"
},
"distributor_check": {
"checked_at": "2026-10-25T02:00:36Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "no match"
},
"mouser": {
"pn": null,
"status": "no match"
}
},
"pins": [
{
"number": "1",
"name": "PE2",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with default function PE2, alternate FSMC_A23, and remap TIM10_BKIN_2."
},
{
"number": "2",
"name": "PE3",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with default function PE3, alternate FSMC_A19, and remap TIM10_CH1N_2."
},
{
"number": "3",
"name": "PE4",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with default function PE4, alternate FSMC_A20, and remap TIM10_CH2N_2."
},
{
"number": "4",
"name": "PE5",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with default function PE5, alternate FSMC_A21, and remap TIM10_CH3N_2."
},
{
"number": "5",
"name": "PE6",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate FSMC_A22; the table prints PE5 as the default name for this pin."
},
{
"number": "6",
"name": "VBAT",
"type": "power_in",
"description": "Backup power input (1.8-3.6V) that independently powers the RTC, the external low-speed oscillator and backup registers when VDD is off."
},
{
"number": "7",
"name": "PC13",
"type": "bidirectional",
"description": "I/O powered through the power switch that can absorb only 3mA; as output it is limited to 2MHz, 30pF max load, and must not drive current sources such as LEDs, with TAMPER-RTC function."
},
{
"number": "8",
"name": "PC14",
"type": "bidirectional",
"description": "Analog-capable I/O powered through the 3mA power switch (same output limits as PC13) and used as OSC32_IN for the low-speed oscillator."
},
{
"number": "9",
"name": "PC15",
"type": "bidirectional",
"description": "Analog-capable I/O powered through the 3mA power switch (same output limits as PC13) and used as OSC32_OUT for the low-speed oscillator."
},
{
"number": "10",
"name": "VSS_5",
"type": "power_in",
"description": "Digital ground pin."
},
{
"number": "11",
"name": "VDD_5",
"type": "power_in",
"description": "Digital supply pin; VDD is specified as 2.4-3.6V and powers some I/O pins and the internal voltage regulator."
},
{
"number": "12",
"name": "OSC_IN",
"type": "input",
"description": "High-speed external oscillator input for the 3-25MHz HSE, with remap to PD0."
},
{
"number": "13",
"name": "OSC_OUT",
"type": "output",
"description": "High-speed external oscillator output for the 3-25MHz HSE, with remap to PD1."
},
{
"number": "14",
"name": "NRST",
"type": "input",
"description": "External reset input; an external reset on NRST is listed as an exit condition from Stop and Standby modes."
},
{
"number": "15",
"name": "PC0",
"type": "bidirectional",
"description": "Analog-capable I/O with ADC_IN10 and TIM9_CH1N, UART6_TX, ETH_RGMII_RXC alternate functions."
},
{
"number": "16",
"name": "PC1",
"type": "bidirectional",
"description": "Analog-capable I/O with ADC_IN11 and TIM9_CH2N, UART6_RX, ETH_MII_MDC alternate functions."
},
{
"number": "17",
"name": "PC2",
"type": "bidirectional",
"description": "Analog-capable I/O with ADC_IN12 and TIM9_CH3N, UART7_TX, OPA3_CH1N alternate functions."
},
{
"number": "18",
"name": "PC3",
"type": "bidirectional",
"description": "Analog-capable I/O with ADC_IN13 and TIM10_CH3, UART7_RX, OPA4_CH1N alternate functions."
},
{
"number": "19",
"name": "VSSA",
"type": "power_in",
"description": "Analog ground pin for the ADC, DAC, temperature sensor and PLL."
},
{
"number": "20",
"name": "VREF-",
"type": "power_in",
"description": "ADC/DAC reference negative pin; the extracted pages give no voltage limit for this pin."
},
{
"number": "21",
"name": "VREF+",
"type": "power_in",
"description": "ADC/DAC reference positive pin; the extracted pages give no voltage limit for this pin."
},
{
"number": "22",
"name": "VDDA",
"type": "power_in",
"description": "Analog supply for the high-frequency RC oscillator, ADC, temperature sensor, DAC and PLL; VDDA is 2.4-3.6V and must equal VI/O, and must be at least 2.4V when using the ADC."
},
{
"number": "23",
"name": "PA0",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with WKUP wake-up input, ADC_IN0, and alternate TIM2_CH1, TIM2_ETR, USART2_CTS."
},
{
"number": "24",
"name": "PA1",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with ADC_IN1 and alternate TIM2_CH2, TIM5_CH2, USART2_RTS."
},
{
"number": "25",
"name": "PA2",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with ADC_IN2 and alternate TIM2_CH3, TIM5_CH3, USART2_TX."
},
{
"number": "26",
"name": "PA3",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with ADC_IN3 and alternate TIM2_CH4, TIM5_CH4, USART2_RX."
},
{
"number": "27",
"name": "VSS_4",
"type": "power_in",
"description": "Digital ground pin."
},
{
"number": "28",
"name": "VDD_4",
"type": "power_in",
"description": "Digital supply pin; VDD is specified as 2.4-3.6V."
},
{
"number": "29",
"name": "PA4",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with ADC_IN4, DAC_OUT1, and alternate SPI1_NSS, USART2_CK, SPI3_NSS/I2S3_WS."
},
{
"number": "30",
"name": "PA5",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with ADC_IN5, DAC_OUT2, and alternate SPI1_SCK, DVP_VSYNC, OPA2_CH1N."
},
{
"number": "31",
"name": "PA6",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with ADC_IN6 and alternate SPI1_MISO, TIM8_BKIN, TIM3_CH1, DVP_PCLK."
},
{
"number": "32",
"name": "PA7",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with ADC_IN7 and alternate SPI1_MOSI, TIM8_CH1N, TIM3_CH2, OPA2_CH1P."
},
{
"number": "33",
"name": "PC4",
"type": "bidirectional",
"description": "Analog-capable I/O with ADC_IN14 and alternate TIM9_CH4, UART8_TX, OPA4_CH1P."
},
{
"number": "34",
"name": "PC5",
"type": "bidirectional",
"description": "Analog-capable I/O with ADC_IN15 and alternate TIM9_BKIN, UART8_RX, OPA3_CH1P."
},
{
"number": "35",
"name": "PB0",
"type": "bidirectional",
"description": "Analog-capable I/O with ADC_IN8 and alternate TIM3_CH3, TIM8_CH2N, OPA1_CH1P."
},
{
"number": "36",
"name": "PB1",
"type": "bidirectional",
"description": "Analog-capable I/O with ADC_IN9 and alternate TIM3_CH4, TIM8_CH3N, OPA4_CH0N."
},
{
"number": "37",
"name": "PB2",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O shared with BOOT1, with alternate OPA3_CH0N and TIM9_CH3N_1."
},
{
"number": "38",
"name": "PE7",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate FSMC_D4, OPA3_OUT1, TIM1_ETR_3."
},
{
"number": "39",
"name": "PE8",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate FSMC_D5, OPA4_OUT1, TIM1_CH1N_3, UART5_TX_2."
},
{
"number": "40",
"name": "PE9",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate FSMC_D6, TIM1_CH1_3, UART5_RX_2."
},
{
"number": "41",
"name": "PE10",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate FSMC_D7, TIM1_CH2N_3, UART6_TX_2."
},
{
"number": "42",
"name": "PE11",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate FSMC_D8, TIM1_CH2_3, UART6_RX_2."
},
{
"number": "43",
"name": "PE12",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate FSMC_D9, TIM1_CH3N_3, UART7_TX_2."
},
{
"number": "44",
"name": "PE13",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate FSMC_D10, TIM1_CH3_3, UART7_RX_2."
},
{
"number": "45",
"name": "PE14",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate FSMC_D11, OPA2_OUT1, TIM1_CH4_3, UART8_TX_2."
},
{
"number": "46",
"name": "PE15",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate FSMC_D12, OPA1_OUT1, TIM1_BKIN_3, UART8_RX_2."
},
{
"number": "47",
"name": "PB10",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate I2C2_SCL, USART3_TX, OPA2_CH0N, TIM2_CH3_2."
},
{
"number": "48",
"name": "PB11",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate I2C2_SDA, USART3_RX, OPA1_CH0N, TIM2_CH4_2."
},
{
"number": "49",
"name": "VSS_1",
"type": "power_in",
"description": "Digital ground pin."
},
{
"number": "50",
"name": "VIO_1",
"type": "power_in",
"description": "I/O supply for most GPIO pins; VI/O is 2.4-3.6V and must not be higher than VDD during operation."
},
{
"number": "51",
"name": "PB12",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate SPI2_NSS, I2S2_WS, I2C2_SMBA, USART3_CK, TIM1_BKIN, CAN2_RX."
},
{
"number": "52",
"name": "PB13",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate SPI2_SCK, I2S2_CK, USART3_CTS, TIM1_CH1N, CAN2_TX."
},
{
"number": "53",
"name": "PB14",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate SPI2_MISO, TIM1_CH2N, USART3_RTS, OPA2_CH0P."
},
{
"number": "54",
"name": "PB15",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate SPI2_MOSI/I2S2_SD, TIM1_CH3N/OPA1_CH0P, USART1_TX_2."
},
{
"number": "55",
"name": "PD8",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate FSMC_D13, USART3_TX_3, TIM9_CH1N_2."
},
{
"number": "56",
"name": "PD9",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate FSMC_D14, USART3_RX_3, TIM9_CH1_ETR_2."
},
{
"number": "57",
"name": "PD10",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate FSMC_D15, USART3_CK_3, TIM9_CH2N_2."
},
{
"number": "58",
"name": "PD11",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate FSMC_A16, USART3_CTS_3, TIM9_CH2_2."
},
{
"number": "59",
"name": "PD12",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate FSMC_A17, TIM4_CH1_1, TIM9_CH3N_2, USART3_RTS_3."
},
{
"number": "60",
"name": "PD13",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate FSMC_A18, TIM4_CH2_1, TIM9_CH3_2."
},
{
"number": "61",
"name": "PD14",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate FSMC_D0, TIM4_CH3_1, TIM9_BKIN_2."
},
{
"number": "62",
"name": "PD15",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate FSMC_D1, TIM4_CH4_1, TIM9_CH4_2."
},
{
"number": "63",
"name": "PC6/RXP",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate I2S2_MCK, TIM8_CH1, SDIO_D6, TIM3_CH1_3; the VCT6 figure labels this pin RXP."
},
{
"number": "64",
"name": "PC7/RXN",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate I2S3_MCK, TIM8_CH2, SDIO_D7, TIM3_CH2_3; the VCT6 figure labels this pin RXN."
},
{
"number": "65",
"name": "PC8/TXP",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate TIM8_CH3, SDIO_D0, DVP_D2, TIM3_CH3_3; the VCT6 figure labels this pin TXP."
},
{
"number": "66",
"name": "PC9/TXN",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate TIM8_CH4, SDIO_D1, DVP_D3, TIM3_CH4_3; the VCT6 figure labels this pin TXN."
},
{
"number": "67",
"name": "PA8",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate USART1_CK, TIM1_CH1, and MCO clock output."
},
{
"number": "68",
"name": "PA9",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate USART1_TX, TIM1_CH2, OTG_FS_VBUS, DVP_D0."
},
{
"number": "69",
"name": "PA10",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate USART1_RX, TIM1_CH3, OTG_FS_ID, DVP_D1."
},
{
"number": "70",
"name": "PA11",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate USART1_CTS, USBDM/OTG_FS_DM, CAN1_RX, TIM1_CH4."
},
{
"number": "71",
"name": "PA12",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate USART1_RTS, USBDP/OTG_FS_DP, CAN1_TX, TIM1_ETR."
},
{
"number": "72",
"name": "PA13",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O; default function is SWDIO serial-wire debug data, with alternate TIM10_CH2N and TIM8_CH1N_1."
},
{
"number": "73",
"name": "NC",
"type": "unconnected",
"description": "No internal connection on this pin per the VCT6 pin arrangement; the pin definition table marks it as unused."
},
{
"number": "74",
"name": "VSS_2",
"type": "power_in",
"description": "Digital ground pin."
},
{
"number": "75",
"name": "VDD_2",
"type": "power_in",
"description": "Digital supply pin; VDD is specified as 2.4-3.6V."
},
{
"number": "76",
"name": "PA14",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O; default function is SWCLK serial-wire debug clock, with alternate TIM10_CH3N, TIM8_CH2N_1, UART8_TX_1."
},
{
"number": "77",
"name": "PA15",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate SPI3_NSS/I2S3_WS, TIM2_CH1_ETR_1, SPI1_NSS, UART8_RX_1, TIM8_CH3N_1."
},
{
"number": "78",
"name": "PC10",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate UART4_TX, SDIO_D2, TIM10_ETR, DVP_D8, USART3_TX_1, SPI3_SCK."
},
{
"number": "79",
"name": "PC11",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate UART4_RX, SDIO_D3, TIM10_CH4, DVP_D4, USART3_RX_1, SPI3_MISO."
},
{
"number": "80",
"name": "PC12",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate UART5_TX, SDIO_CK, TIM10_BKIN, DVP_D9, USART3_CK_1, SPI3_MOSI."
},
{
"number": "81",
"name": "PD0",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate FSMC_D2, CAN1_RX, TIM10_ETR_2; on LQFP100 PD0 is an inherent function pin and does not need software reconfiguration."
},
{
"number": "82",
"name": "PD1",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate FSMC_D3, CAN1_TX, TIM10_CH1_2; on LQFP100 PD1 is an inherent function pin."
},
{
"number": "83",
"name": "PD2",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate TIM3_ETR, UART5_RX, SDIO_CMD, DVP_D11."
},
{
"number": "84",
"name": "PD3",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate FSMC_CLK, USART2_CTS_1, TIM10_CH2_2."
},
{
"number": "85",
"name": "PD4",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate FSMC_NOE and USART2_RTS_1."
},
{
"number": "86",
"name": "PD5",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate FSMC_NWE, USART2_TX_1, TIM10_CH3_2."
},
{
"number": "87",
"name": "PD6",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate FSMC_NWAIT, DVP_D10, USART2_RX_1."
},
{
"number": "88",
"name": "PD7",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate FSMC_NE1, FSMC_NCE2, USART2_CK_1, TIM10_CH4_2."
},
{
"number": "89",
"name": "PB3",
"type": "bidirectional",
"description": "I/O with alternate SPI3_SCK/I2S3_CK, TRACESWO, TIM2_CH2_1, SPI1_SCK, TIM10_CH1_1."
},
{
"number": "90",
"name": "PB4",
"type": "bidirectional",
"description": "I/O with alternate SPI3_MISO, TIM3_CH1_2, SPI1_MISO, UART5_TX_1, TIM10_CH2_1."
},
{
"number": "91",
"name": "PB5",
"type": "bidirectional",
"description": "I/O with alternate I2C1_SMBA, SPI3_MOSI/I2S3_SD, TIM3_CH2_2, SPI1_MOSI, CAN2_RX, UART5_RX_1."
},
{
"number": "92",
"name": "PB6",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate I2C1_SCL, TIM4_CH1, USBFS_DM, DVP_D5, USART1_TX_1, CAN2_TX."
},
{
"number": "93",
"name": "PB7",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate I2C1_SDA, FSMC_NADV, TIM4_CH2, USBFS_DP, USART1_RX_1, TIM8_CH2_1."
},
{
"number": "94",
"name": "BOOT0",
"type": "input",
"description": "Boot-mode select input; together with BOOT1 (PB2) it selects boot from program flash, system memory or internal SRAM."
},
{
"number": "95",
"name": "PB8",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate TIM4_CH3, SDIO_D4, TIM10_CH1, DVP_D6, I2C1_SCL, CAN1_RX."
},
{
"number": "96",
"name": "PB9",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate TIM4_CH4, SDIO_D5, TIM10_CH2, DVP_D7, I2C1_SDA, CAN1_TX."
},
{
"number": "97",
"name": "PE0",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate TIM4_ETR, FSMC_NBL0, TIM4_ETR_1, UART4_TX_2."
},
{
"number": "98",
"name": "PE1",
"type": "bidirectional",
"description": "5V-tolerant (FT) I/O with alternate FSMC_NBL1 and UART4_RX_2."
},
{
"number": "99",
"name": "VSS_3",
"type": "power_in",
"description": "Digital ground pin."
},
{
"number": "100",
"name": "VIO_3",
"type": "power_in",
"description": "I/O supply for most GPIO pins; VI/O is 2.4-3.6V and must not be higher than VDD during operation."
}
],
"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 VCT6 pin arrangement (page 19) labels these pins PC6/RXP, PC7/RXN, PC8/TXP, PC9/TXN, while the p; The pin definition table for PE6 prints PE5 as the default name (typo in the source); I listed the p; Pin 73 is shown as NC in the VCT6 arrangement but as an unused entry (Chinese text) in the pin defin",
"6/100 pins cited to the wrong page (name found elsewhere): ['11:VDD_5@p11', '22:VDDA@p11', '28:VDD_4@p11', '50:VIO_1@p11']"
],
"pages_sent": 24,
"cost_usd": 0.2298,
"at": "2026-10-25T02:00:11"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/afc0feb21c8aa8140c79dc15add72318.pdf",
"pages": 69,
"sha256": "4b7f09894a062d50",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 100,
"described": 100,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "ch32f203vct6.step",
"role": "plain",
"up": "Z",
"units": "mm",
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"seat": "z = 0",
"extents_mm": [
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"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "51720097260ffba41c3062f85f67623721102fa535901c47cb555a1f444feeb3",
"checked": "2026-10-25",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "ch32f203vct6-etched.step",
"role": "eda",
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"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
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1.5
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"zmin_mm": 0,
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"footprint_binding": "identity",
"sha256": "1b20e150c91eaada8d48b6d93d6f3f61eeaf3e98f584100e850becffa949b13a",
"checked": "2026-10-25",
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}
]
},
"metadata": {
"specs": {
"Manufacturer": "WCH(Jiangsu Qin Heng)",
"Package": "LQFP-100(14x14)",
"Category": "Single Chip Microcomputer/Microcontroller",
"Pins": "100"
},
"characteristics": {
"version": 1,
"source": "datasheet",
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"rows": [
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"name": "Ambient temperature during operation",
"symbol": "TA",
"kind": "absolute_maximum",
"unit": "℃",
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{
"name": "Ambient temperature during storage",
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{
"name": "External main supply voltage (including VDDA and VDD)",
"symbol": "VDD-VSS",
"kind": "absolute_maximum",
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"min": -0.3,
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{
"name": "I/O domain supply voltage",
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{
"name": "Input voltage on the FT (5V tolerance) pin",
"symbol": "VIN",
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"max": 5.5,
"conditions": "FT (5V tolerance) pin",
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"source": "datasheet"
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{
"name": "Variations between different main power supply pins",
"symbol": "|△VDD_x|",
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{
"name": "Total current into VDD/VDDA/VI/O power lines (supply current)",
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"min": null,
"typ": null,
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"source": "datasheet"
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{
"name": "Total current out of VSS ground lines (outflow current)",
"symbol": "IVss",
"kind": "absolute_maximum",
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"min": null,
"typ": null,
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{
"name": "Sink current on any I/O and control pin",
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"typ": null,
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{
"name": "Output current on any I/O and control pin",
"symbol": "II/O",
"kind": "absolute_maximum",
"unit": "mA",
"min": -25,
"typ": null,
"max": null,
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{
"name": "Injected current on NRST pin",
"symbol": "IINJ(PIN)",
"kind": "absolute_maximum",
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"min": -5,
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"source_page": 36,
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{
"name": "Injected current on HSE's OSC_IN pin and LSE's OSC_IN pin",
"symbol": "IINJ(PIN)",
"kind": "absolute_maximum",
"unit": "mA",
"min": -5,
"typ": null,
"max": 5,
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"source_page": 36,
"source": "datasheet"
},
{
"name": "Total injected current on all I/Os and control pins",
"symbol": "∑IINJ(PIN)",
"kind": "absolute_maximum",
"unit": "mA",
"min": -25,
"typ": null,
"max": 25,
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"source": "datasheet"
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{
"name": "Standard operating voltage",
"symbol": "VDD",
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"min": 2.4,
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{
"name": "Operating voltage when using USB or ETH",
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"kind": "recommended_operating",
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"typ": null,
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{
"name": "Output voltage on most I/O pins",
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{
"name": "Backup operating voltage",
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{
"name": "Ambient temperature",
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{
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"min": -40,
"typ": null,
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"source": "datasheet"
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{
"name": "VDD rise time rate",
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{
"name": "VDD fall time rate",
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{
"name": "Power-on/power-down reset threshold (rising edge)",
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{
"name": "Power-on/power-down reset threshold (falling edge)",
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{
"name": "Power on reset timeout",
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"typ": 28,
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},
{
"name": "Other resets timeout",
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"typ": 10,
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"conditions": "Other resets",
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"source": "datasheet"
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{
"name": "Internal reference voltage",
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"kind": "electrical",
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"min": 1.17,
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"max": 1.23,
"conditions": "TA = -40℃～85℃",
"source_page": 37,
"source": "datasheet"
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{
"name": "External clock frequency (HSE)",
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"kind": "electrical",
"unit": "MHz",
"min": 3,
"typ": 8,
"max": 25,
"conditions": "",
"source_page": 41,
"source": "datasheet"
},
{
"name": "OSC_IN input leakage current",
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"kind": "electrical",
"unit": "uA",
"min": -1,
"typ": null,
"max": 1,
"conditions": "",
"source_page": 41,
"source": "datasheet"
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{
"name": "User external clock frequency (LSE)",
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"unit": "KHz",
"min": 32.768,
"typ": null,
"max": 1000,
"conditions": "",
"source_page": 42,
"source": "datasheet"
},
{
"name": "OSC32_IN input leakage current",
"symbol": "IL",
"kind": "electrical",
"unit": "uA",
"min": -1,
"typ": null,
"max": 1,
"conditions": "",
"source_page": 42,
"source": "datasheet"
},
{
"name": "Resonator frequency",
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"min": 3,
"typ": 8,
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"source": "datasheet"
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{
"name": "Duty cycle (HSI)",
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"unit": "%",
"min": 45,
"typ": 50,
"max": 55,
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"source": "datasheet"
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{
"name": "Accuracy of HSI oscillator (after calibration)",
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"unit": "%",
"min": -1,
"typ": null,
"max": 1.6,
"conditions": "TA = 0℃～70℃",
"source_page": 43,
"source": "datasheet"
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{
"name": "Accuracy of HSI oscillator (after calibration)",
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"max": 2.2,
"conditions": "TA = -40℃～85℃",
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"source": "datasheet"
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{
"name": "HSI oscillator power consumption",
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"min": 120,
"typ": 180,
"max": 270,
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"source": "datasheet"
},
{
"name": "Frequency (LSI)",
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"unit": "KHz",
"min": 25,
"typ": 39,
"max": 60,
"conditions": "",
"source_page": 44,
"source": "datasheet"
},
{
"name": "PLL input clock",
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"unit": "MHz",
"min": 3,
"typ": 8,
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"source": "datasheet"
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{
"name": "Offset error",
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"source": "datasheet"
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{
"name": "Average slope (negative temperature coefficient)",
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{
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"source": "datasheet"
},
{
"name": "Standard I/O pin, input low-level voltage",
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"source": "datasheet"
},
{
"name": "FT I/O pin, input low-level voltage",
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"typ": null,
"max": null,
"conditions": "FT I/O pin",
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"source": "datasheet"
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{
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"source": "datasheet"
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{
"name": "Weak pull-up equivalent resistance",
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"source": "datasheet"
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{
"name": "Weak pull-down equivalent resistance",
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"min": 30,
"typ": 40,
"max": 55,
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"source_page": 45,
"source": "datasheet"
},
{
"name": "Output low level when 8 pins are sunk (TTL port)",
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