GD32F427VET6

{
  "slug": "gd32f427vet6",
  "version": "0.1.0",
  "type": "component",
  "description": "GigaDevice Semicon Beijing Microcontrollers (MCU/MPU/SOC), LQFP-100(14x14). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "embedded processors & controllers",
    "gd32f427vet6",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "gd32f427vet6.kicad_sym",
    "gd32f427vet6.kicad_mod",
    "gd32f427vet6.glb",
    "gd32f427vet6.step",
    "gd32f427vet6.lbr",
    "docs/hero.png",
    "docs/gd32f427vet6-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "gd32f427vet6-hero.glb",
    "gd32f427vet6-hero.overlay.json",
    "gd32f427vet6-etched.glb"
  ],
  "component": {
    "mpn": "GD32F427VET6",
    "manufacturer": "GigaDevice Semicon Beijing",
    "package": "LQFP-100(14x14)",
    "pin_count": 100,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589834441142005760",
    "parts": {
      "symbol": "gd32f427vet6.kicad_sym",
      "footprint": "gd32f427vet6.kicad_mod",
      "model_3d": "gd32f427vet6-hero.glb",
      "model_3d_plain": "gd32f427vet6-etched.glb",
      "model_3d_step": "gd32f427vet6-etched.step",
      "model_3d_step_plain": "gd32f427vet6.step",
      "lbr": "gd32f427vet6.lbr"
    },
    "distributor_links": {
      "lcsc": "C2981720"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T21:01:53Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "PE2",
        "type": "bidirectional",
        "description": "Default GPIO PE2, 5 V tolerant (5VT); alternates ENET_MII_TXD3, EXMC_A23, EVENTOUT."
      },
      {
        "number": "2",
        "name": "PE3",
        "type": "bidirectional",
        "description": "Default GPIO PE3, 5 V tolerant (5VT); alternates EXMC_A19, EVENTOUT."
      },
      {
        "number": "3",
        "name": "PE4",
        "type": "bidirectional",
        "description": "Default GPIO PE4, 5 V tolerant (5VT); alternates EXMC_A20, DCI_D4, EVENTOUT."
      },
      {
        "number": "4",
        "name": "PE5",
        "type": "bidirectional",
        "description": "Default GPIO PE5, 5 V tolerant (5VT); alternates TIMER8_CH0, EXMC_A21, DCI_D6, EVENTOUT."
      },
      {
        "number": "5",
        "name": "PE6",
        "type": "bidirectional",
        "description": "Default GPIO PE6, 5 V tolerant (5VT); alternates TIMER8_CH1, EXMC_A22, DCI_D7, EVENTOUT."
      },
      {
        "number": "6",
        "name": "VBAT",
        "type": "power_in",
        "description": "Backup power supply pin (default function VBAT)."
      },
      {
        "number": "7",
        "name": "PC13-TAMPER-RTC",
        "type": "bidirectional",
        "description": "Default GPIO PC13, 5 V tolerant (5VT); additional RTC_TAMP0, RTC_OUT, RTC_TS; alternate EVENTOUT."
      },
      {
        "number": "8",
        "name": "PC14-OSC32IN",
        "type": "bidirectional",
        "description": "Default GPIO PC14, 5 V tolerant (5VT); additional function OSC32IN (low-speed crystal input); alternate EVENTOUT."
      },
      {
        "number": "9",
        "name": "PC15-OSC32OUT",
        "type": "bidirectional",
        "description": "Default GPIO PC15, 5 V tolerant (5VT); additional function OSC32OUT (low-speed crystal output); alternate EVENTOUT."
      },
      {
        "number": "10",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground pin (default function VSS)."
      },
      {
        "number": "11",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital power supply pin (default function VDD)."
      },
      {
        "number": "12",
        "name": "PH0",
        "type": "bidirectional",
        "description": "Default GPIO PH0, 5 V tolerant (5VT); additional function OSCIN (high-speed crystal input); alternate EVENTOUT."
      },
      {
        "number": "13",
        "name": "PH1",
        "type": "bidirectional",
        "description": "Default GPIO PH1, 5 V tolerant (5VT); additional function OSCOUT (high-speed crystal output); alternate EVENTOUT."
      },
      {
        "number": "14",
        "name": "NRST",
        "type": "input",
        "description": "Reset pin (default function NRST); NRST pin characteristics are given in datasheet section 4.11. Table lists type as '-', classed here as input."
      },
      {
        "number": "15",
        "name": "PC0",
        "type": "bidirectional",
        "description": "Default GPIO PC0, 5 V tolerant (5VT); alternates USBHS_ULPI_STP, EXMC_SDNWE, EVENTOUT; additional ADC012_IN10."
      },
      {
        "number": "16",
        "name": "PC1",
        "type": "bidirectional",
        "description": "Default GPIO PC1, 5 V tolerant (5VT); alternates SPI2_MOSI, I2S2_SD, SPI1_MOSI, I2S1_SD, ENET_MDC, EVENTOUT; additional ADC012_IN11."
      },
      {
        "number": "17",
        "name": "PC2",
        "type": "bidirectional",
        "description": "Default GPIO PC2, 5 V tolerant (5VT); alternates SPI1_MISO, I2S1_ADD_SD, USBHS_ULPI_DIR, ENET_MII_TXD2, EVENTOUT; additional ADC012_IN12."
      },
      {
        "number": "18",
        "name": "PC3",
        "type": "bidirectional",
        "description": "Default GPIO PC3, 5 V tolerant (5VT); alternates SPI1_MOSI, I2S1_SD, USBHS_ULPI_NXT, ENET_MII_TX_CLK, EVENTOUT; additional ADC012_IN13."
      },
      {
        "number": "19",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital power supply pin (default function VDD)."
      },
      {
        "number": "20",
        "name": "VSSA",
        "type": "power_in",
        "description": "Analog ground pin (default function VSSA)."
      },
      {
        "number": "21",
        "name": "VREFP",
        "type": "power_in",
        "description": "ADC/DAC reference voltage input (default function VREF+)."
      },
      {
        "number": "22",
        "name": "VDDA",
        "type": "power_in",
        "description": "Analog supply pin; the block diagram shows the SAR ADC and DAC powered from VDDA (default function VDDA)."
      },
      {
        "number": "23",
        "name": "PA0-WKUP",
        "type": "bidirectional",
        "description": "Default GPIO PA0, 5 V tolerant (5VT); alternates TIMER1_CH0, TIMER1_ETI, TIMER4_CH0, TIMER7_ETI, USART1_CTS, UART3_TX, ENET_MII_CRS, EVENTOUT; additional ADC012_IN0 and WKUP."
      },
      {
        "number": "24",
        "name": "PA1",
        "type": "bidirectional",
        "description": "Default GPIO PA1, 5 V tolerant (5VT); alternates TIMER1_CH1, TIMER4_CH1, USART1_RTS, UART3_RX, ENET_MII_RX_CLK, ENET_RMII_REF_CLK, EVENTOUT; additional ADC012_IN1."
      },
      {
        "number": "25",
        "name": "PA2",
        "type": "bidirectional",
        "description": "Default GPIO PA2, 5 V tolerant (5VT); alternates TIMER1_CH2, TIMER4_CH2, TIMER8_CH0, I2S_CKIN, USART1_TX, ENET_MDIO, EVENTOUT; additional ADC012_IN2."
      },
      {
        "number": "26",
        "name": "PA3",
        "type": "bidirectional",
        "description": "Default GPIO PA3, 5 V tolerant (5VT); alternates TIMER1_CH3, TIMER4_CH3, TIMER8_CH1, I2S1_MCK, USART1_RX, USBHS_ULPI_D0, ENET_MII_COL, EVENTOUT; additional ADC012_IN3."
      },
      {
        "number": "27",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground pin (default function VSS)."
      },
      {
        "number": "28",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital power supply pin (default function VDD)."
      },
      {
        "number": "29",
        "name": "PA4",
        "type": "bidirectional",
        "description": "Default GPIO PA4; alternates SPI0_NSS, SPI2_NSS/I2S2_WS, USART1_CK, USBHS_SOF, DCI_HSYNC, EVENTOUT; additional ADC01_IN4 and DAC_OUT0. The table gives no 5VT marking for this pin."
      },
      {
        "number": "30",
        "name": "PA5",
        "type": "bidirectional",
        "description": "Default GPIO PA5; alternates TIMER1_CH0, TIMER1_ETI, TIMER7_CH0_ON, SPI0_SCK, USBHS_ULPI_CK, EVENTOUT; additional ADC01_IN5 and DAC_OUT1. The table gives no 5VT marking for this pin."
      },
      {
        "number": "31",
        "name": "PA6",
        "type": "bidirectional",
        "description": "Default GPIO PA6, 5 V tolerant (5VT); alternates TIMER0_BRKIN, TIMER2_CH0, TIMER7_BRKIN, SPI0_MISO, I2S1_MCK, TIMER12_CH0, SDIO_CMD, DCI_PIXCLK, EVENTOUT; additional ADC01_IN6."
      },
      {
        "number": "32",
        "name": "PA7",
        "type": "bidirectional",
        "description": "Default GPIO PA7, 5 V tolerant (5VT); alternates TIMER0_CH0_ON, TIMER2_CH1, TIMER7_CH0_ON, SPI0_MOSI, TIMER13_CH0, ENET_MII_RX_DV, ENET_RMII_CRS_DV, EXMC_SDNWE, EVENTOUT; additional ADC01_IN7."
      },
      {
        "number": "33",
        "name": "PC4",
        "type": "bidirectional",
        "description": "Default GPIO PC4, 5 V tolerant (5VT); alternates ENET_MII_RXD0, ENET_RMII_RXD0, EVENTOUT; additional ADC01_IN14."
      },
      {
        "number": "34",
        "name": "PC5",
        "type": "bidirectional",
        "description": "Default GPIO PC5, 5 V tolerant (5VT); alternates USART2_RX, ENET_MII_RXD1, ENET_RMII_RXD1, EVENTOUT; additional ADC01_IN15."
      },
      {
        "number": "35",
        "name": "PB0",
        "type": "bidirectional",
        "description": "Default GPIO PB0, 5 V tolerant (5VT); alternates TIMER0_CH1_ON, TIMER2_CH2, TIMER7_CH1_ON, SPI2_MOSI, I2S2_SD, USBHS_ULPI_D1, ENET_MII_RXD2, SDIO_D1, EVENTOUT; additional ADC01_IN8 and IREF."
      },
      {
        "number": "36",
        "name": "PB1",
        "type": "bidirectional",
        "description": "Default GPIO PB1, 5 V tolerant (5VT); alternates TIMER0_CH2_ON, TIMER2_CH3, TIMER7_CH2_ON, USBHS_ULPI_D2, ENET_MII_RXD3, SDIO_D2, EVENTOUT; additional ADC01_IN9."
      },
      {
        "number": "37",
        "name": "PB2",
        "type": "bidirectional",
        "description": "Default GPIO PB2 (also BOOT1), 5 V tolerant (5VT); alternates TIMER1_CH3, SPI2_MOSI, I2S2_SD, USBHS_ULPI_D4, SDIO_CK, EVENTOUT."
      },
      {
        "number": "38",
        "name": "PE7",
        "type": "bidirectional",
        "description": "Default GPIO PE7, 5 V tolerant (5VT); alternates TIMER0_ETI, EXMC_D4, EVENTOUT."
      },
      {
        "number": "39",
        "name": "PE8",
        "type": "bidirectional",
        "description": "Default GPIO PE8, 5 V tolerant (5VT); alternates TIMER0_CH0_ON, EXMC_D5, EVENTOUT."
      },
      {
        "number": "40",
        "name": "PE9",
        "type": "bidirectional",
        "description": "Default GPIO PE9, 5 V tolerant (5VT); alternates TIMER0_CH0, EXMC_D6, EVENTOUT."
      },
      {
        "number": "41",
        "name": "PE10",
        "type": "bidirectional",
        "description": "Default GPIO PE10, 5 V tolerant (5VT); alternates TIMER0_CH1_ON, EXMC_D7, EVENTOUT."
      },
      {
        "number": "42",
        "name": "PE11",
        "type": "bidirectional",
        "description": "Default GPIO PE11, 5 V tolerant (5VT); alternates TIMER0_CH1, EXMC_D8, EVENTOUT."
      },
      {
        "number": "43",
        "name": "PE12",
        "type": "bidirectional",
        "description": "Default GPIO PE12, 5 V tolerant (5VT); alternates TIMER0_CH2_ON, EXMC_D9, EVENTOUT."
      },
      {
        "number": "44",
        "name": "PE13",
        "type": "bidirectional",
        "description": "Default GPIO PE13, 5 V tolerant (5VT); alternates TIMER0_CH2, EXMC_D10, EVENTOUT."
      },
      {
        "number": "45",
        "name": "PE14",
        "type": "bidirectional",
        "description": "Default GPIO PE14, 5 V tolerant (5VT); alternates TIMER0_CH3, EXMC_D11, EVENTOUT."
      },
      {
        "number": "46",
        "name": "PE15",
        "type": "bidirectional",
        "description": "Default GPIO PE15, 5 V tolerant (5VT); alternates TIMER0_BRKIN, EXMC_D12, EVENTOUT."
      },
      {
        "number": "47",
        "name": "PB10",
        "type": "bidirectional",
        "description": "Default GPIO PB10, 5 V tolerant (5VT); alternates TIMER1_CH2, I2C1_SCL, SPI1_SCK, I2S1_CK, I2S2_MCK, USART2_TX, USBHS_ULPI_D3, ENET_MII_RX_ER, SDIO_D7, EVENTOUT."
      },
      {
        "number": "48",
        "name": "PB11",
        "type": "bidirectional",
        "description": "Default GPIO PB11, 5 V tolerant (5VT); alternates TIMER1_CH3, I2C1_SDA, I2S_CKIN, USART2_RX, USBHS_ULPI_D4, ENET_MII_TX_EN, ENET_RMII_TX_EN, EVENTOUT."
      },
      {
        "number": "49",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected (NC) per the pin table."
      },
      {
        "number": "50",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital power supply pin (default function VDD)."
      },
      {
        "number": "51",
        "name": "PB12",
        "type": "bidirectional",
        "description": "Default GPIO PB12, 5 V tolerant (5VT); alternates TIMER0_BRKIN, I2C1_SMBA, SPI1_NSS, I2S1_WS, USART2_CK, CAN1_RX, USBHS_ULPI_D5, ENET_MII_TXD0, ENET_RMII_TXD0, USBHS_ID, EVENTOUT."
      },
      {
        "number": "52",
        "name": "PB13",
        "type": "bidirectional",
        "description": "Default GPIO PB13, 5 V tolerant (5VT); alternates TIMER0_CH0_ON, SPI1_SCK, I2S1_CK, USART2_CTS, CAN1_TX, USBHS_ULPI_D6, ENET_MII_TXD1, ENET_RMII_TXD1, EVENTOUT, I2C1_TXFRAME; additional USBHS_VBUS."
      },
      {
        "number": "53",
        "name": "PB14",
        "type": "bidirectional",
        "description": "Default GPIO PB14, 5 V tolerant (5VT); alternates TIMER0_CH1_ON, TIMER7_CH1_ON, SPI1_MISO, I2S1_ADD_SD, USART2_RTS, TIMER11_CH0, USBHS_DM, EVENTOUT."
      },
      {
        "number": "54",
        "name": "PB15",
        "type": "bidirectional",
        "description": "Default GPIO PB15, 5 V tolerant (5VT); alternates RTC_REFIN, TIMER0_CH2_ON, TIMER7_CH2_ON, SPI1_MOSI, I2S1_SD, TIMER11_CH1, USBHS_DP, EVENTOUT."
      },
      {
        "number": "55",
        "name": "PD8",
        "type": "bidirectional",
        "description": "Default GPIO PD8, 5 V tolerant (5VT); alternates USART2_TX, EXMC_D13, EVENTOUT."
      },
      {
        "number": "56",
        "name": "PD9",
        "type": "bidirectional",
        "description": "Default GPIO PD9, 5 V tolerant (5VT); alternates USART2_RX, EXMC_D14, EVENTOUT."
      },
      {
        "number": "57",
        "name": "PD10",
        "type": "bidirectional",
        "description": "Default GPIO PD10, 5 V tolerant (5VT); alternates USART2_CK, EXMC_D15, EVENTOUT."
      },
      {
        "number": "58",
        "name": "PD11",
        "type": "bidirectional",
        "description": "Default GPIO PD11, 5 V tolerant (5VT); alternates USART2_CTS, EXMC_A16, EVENTOUT."
      },
      {
        "number": "59",
        "name": "PD12",
        "type": "bidirectional",
        "description": "Default GPIO PD12, 5 V tolerant (5VT); alternates TIMER3_CH0, USART2_RTS, EXMC_A17, EVENTOUT."
      },
      {
        "number": "60",
        "name": "PD13",
        "type": "bidirectional",
        "description": "Default GPIO PD13, 5 V tolerant (5VT); alternates TIMER3_CH1, EXMC_A18, EVENTOUT."
      },
      {
        "number": "61",
        "name": "PD14",
        "type": "bidirectional",
        "description": "Default GPIO PD14, 5 V tolerant (5VT); alternates TIMER3_CH2, EXMC_D0, EVENTOUT."
      },
      {
        "number": "62",
        "name": "PD15",
        "type": "bidirectional",
        "description": "Default GPIO PD15, 5 V tolerant (5VT); alternates TIMER3_CH3, EXMC_D1, EVENTOUT, CTC_SYNC."
      },
      {
        "number": "63",
        "name": "PC6",
        "type": "bidirectional",
        "description": "Default GPIO PC6, 5 V tolerant (5VT); alternates TIMER2_CH0, TIMER7_CH0, I2S1_MCK, USART5_TX, SDIO_D6, DCI_D0, EVENTOUT."
      },
      {
        "number": "64",
        "name": "PC7",
        "type": "bidirectional",
        "description": "Default GPIO PC7, 5 V tolerant (5VT); alternates TIMER2_CH1, TIMER7_CH1, SPI1_SCK, I2S1_CK, I2S2_MCK, USART5_RX, SDIO_D7, DCI_D1, EVENTOUT."
      },
      {
        "number": "65",
        "name": "PC8",
        "type": "bidirectional",
        "description": "Default GPIO PC8, 5 V tolerant (5VT); alternates TIMER2_CH2, TIMER7_CH2, USART5_CK, SDIO_D0, DCI_D2, EVENTOUT."
      },
      {
        "number": "66",
        "name": "PC9",
        "type": "bidirectional",
        "description": "Default GPIO PC9, 5 V tolerant (5VT); alternates CK_OUT1, TIMER2_CH3, TIMER7_CH3, I2C2_SDA, I2S_CKIN, SDIO_D1, DCI_D3, EVENTOUT."
      },
      {
        "number": "67",
        "name": "PA8",
        "type": "bidirectional",
        "description": "Default GPIO PA8, 5 V tolerant (5VT); alternates CK_OUT0, TIMER0_CH0, I2C2_SCL, USART0_CK, USBFS_SOF, SDIO_D1, EVENTOUT, CTC_SYNC."
      },
      {
        "number": "68",
        "name": "PA9",
        "type": "bidirectional",
        "description": "Default GPIO PA9, 5 V tolerant (5VT); alternates TIMER0_CH1, I2C2_SMBA, SPI1_SCK, I2S1_CK, USART0_TX, SDIO_D2, DCI_D0, EVENTOUT; additional USBFS_VBUS."
      },
      {
        "number": "69",
        "name": "PA10",
        "type": "bidirectional",
        "description": "Default GPIO PA10, 5 V tolerant (5VT); alternates TIMER0_CH2, USART0_RX, USBFS_ID, DCI_D1, EVENTOUT, I2C2_TXFRAME."
      },
      {
        "number": "70",
        "name": "PA11",
        "type": "bidirectional",
        "description": "Default GPIO PA11, 5 V tolerant (5VT); alternates TIMER0_CH3, USART0_CTS, USART5_TX, CAN0_RX, USBFS_DM, EVENTOUT."
      },
      {
        "number": "71",
        "name": "PA12",
        "type": "bidirectional",
        "description": "Default GPIO PA12, 5 V tolerant (5VT); alternates TIMER0_ETI, USART0_RTS, USART5_RX, CAN0_TX, USBFS_DP, EVENTOUT."
      },
      {
        "number": "72",
        "name": "PA13",
        "type": "bidirectional",
        "description": "Default JTMS/SWDIO, then PA13, 5 V tolerant (5VT); alternate EVENTOUT."
      },
      {
        "number": "73",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected (NC) per the pin table."
      },
      {
        "number": "74",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground pin (default function VSS)."
      },
      {
        "number": "75",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital power supply pin (default function VDD)."
      },
      {
        "number": "76",
        "name": "PA14",
        "type": "bidirectional",
        "description": "Default JTCK/SWCLK, then PA14, 5 V tolerant (5VT); alternate EVENTOUT."
      },
      {
        "number": "77",
        "name": "PA15",
        "type": "bidirectional",
        "description": "Default JTDI, then PA15, 5 V tolerant (5VT); alternates TIMER1_CH0, TIMER1_ETI, SPI0_NSS, SPI2_NSS/I2S2_WS, USART0_TX, EVENTOUT."
      },
      {
        "number": "78",
        "name": "PC10",
        "type": "bidirectional",
        "description": "Default GPIO PC10, 5 V tolerant (5VT); alternates SPI2_SCK/I2S2_CK, USART2_TX, UART3_TX, SDIO_D2, DCI_D8, EVENTOUT."
      },
      {
        "number": "79",
        "name": "PC11",
        "type": "bidirectional",
        "description": "Default GPIO PC11, 5 V tolerant (5VT); alternates I2S2_ADD_SD, SPI2_MISO, USART2_RX, UART3_RX, SDIO_D3, DCI_D4, EVENTOUT."
      },
      {
        "number": "80",
        "name": "PC12",
        "type": "bidirectional",
        "description": "Default GPIO PC12, 5 V tolerant (5VT); alternates I2C1_SDA, SPI2_MOSI/I2S2_SD, USART2_CK, UART4_TX, SDIO_CK, DCI_D9, EVENTOUT."
      },
      {
        "number": "81",
        "name": "PD0",
        "type": "bidirectional",
        "description": "Default GPIO PD0, 5 V tolerant (5VT); alternates SPI2_MOSI/I2S2_SD, CAN0_RX, EXMC_D2, EVENTOUT."
      },
      {
        "number": "82",
        "name": "PD1",
        "type": "bidirectional",
        "description": "Default GPIO PD1, 5 V tolerant (5VT); alternates SPI1_NSS/I2S1_WS, CAN0_TX, EXMC_D3, EVENTOUT."
      },
      {
        "number": "83",
        "name": "PD2",
        "type": "bidirectional",
        "description": "Default GPIO PD2, 5 V tolerant (5VT); alternates TIMER2_ETI, UART4_RX, SDIO_CMD, DCI_D11, EVENTOUT."
      },
      {
        "number": "84",
        "name": "PD3",
        "type": "bidirectional",
        "description": "Default GPIO PD3, 5 V tolerant (5VT); alternates SPI1_SCK/I2S1_CK, USART1_CTS, EXMC_CLK, DCI_D5, EVENTOUT."
      },
      {
        "number": "85",
        "name": "PD4",
        "type": "bidirectional",
        "description": "Default GPIO PD4, 5 V tolerant (5VT); alternates USART1_RTS, EXMC_NOE, EVENTOUT."
      },
      {
        "number": "86",
        "name": "PD5",
        "type": "bidirectional",
        "description": "Default GPIO PD5, 5 V tolerant (5VT); alternates USART1_TX, EXMC_NWE, EVENTOUT."
      },
      {
        "number": "87",
        "name": "PD6",
        "type": "bidirectional",
        "description": "Default GPIO PD6, 5 V tolerant (5VT); alternates SPI2_MOSI/I2S2_SD, USART1_RX, EXMC_NWAIT, DCI_D10, EVENTOUT."
      },
      {
        "number": "88",
        "name": "PD7",
        "type": "bidirectional",
        "description": "Default GPIO PD7, 5 V tolerant (5VT); alternates USART1_CK, EXMC_NE0/EXMC_NCE1, EVENTOUT."
      },
      {
        "number": "89",
        "name": "PB3",
        "type": "bidirectional",
        "description": "Default JTDO/PB3, 5 V tolerant (5VT); alternates TRACESWO, TIMER1_CH1, SPI0_SCK, SPI2_SCK/I2S2_CK, USART0_RX, I2C1_SDA, EVENTOUT."
      },
      {
        "number": "90",
        "name": "PB4",
        "type": "bidirectional",
        "description": "Default NJTRST/PB4, 5 V tolerant (5VT); alternates TIMER2_CH0, SPI0_MISO, SPI2_MISO, I2S2_ADD_SD, I2C2_SDA, SDIO_D0, EVENTOUT, I2C0_TXFRAME."
      },
      {
        "number": "91",
        "name": "PB5",
        "type": "bidirectional",
        "description": "Default GPIO PB5, 5 V tolerant (5VT); alternates TIMER2_CH1, I2C0_SMBA, SPI0_MOSI, SPI2_MOSI/I2S2_SD, CAN1_RX, USBHS_ULPI_D7, ENET_PPS_OUT, DCI_D10, EVENTOUT."
      },
      {
        "number": "92",
        "name": "PB6",
        "type": "bidirectional",
        "description": "Default GPIO PB6, 5 V tolerant (5VT); alternates TIMER3_CH0, I2C0_SCL, USART0_TX, CAN1_TX, DCI_D5, EVENTOUT."
      },
      {
        "number": "93",
        "name": "PB7",
        "type": "bidirectional",
        "description": "Default GPIO PB7, 5 V tolerant (5VT); alternates TIMER3_CH1, I2C0_SDA, USART0_RX, EXMC_NL, DCI_VSYNC, EVENTOUT."
      },
      {
        "number": "94",
        "name": "BOOT0",
        "type": "bidirectional",
        "description": "Default BOOT0 pin, 5 V tolerant (5VT), used for boot-mode selection (see section 3.4)."
      },
      {
        "number": "95",
        "name": "PB8",
        "type": "bidirectional",
        "description": "Default GPIO PB8, 5 V tolerant (5VT); alternates TIMER1_CH0, TIMER1_ETI, TIMER3_CH2, TIMER9_CH0, I2C0_SCL, CAN0_RX, ENET_MII_TXD3, SDIO_D4, DCI_D6, EVENTOUT."
      },
      {
        "number": "96",
        "name": "PB9",
        "type": "bidirectional",
        "description": "Default GPIO PB9, 5 V tolerant (5VT); alternates TIMER1_CH1, TIMER3_CH3, TIMER10_CH0, I2C0_SDA, SPI1_NSS/I2S1_WS, CAN0_TX, SDIO_D5, DCI_D7, EVENTOUT."
      },
      {
        "number": "97",
        "name": "PE0",
        "type": "bidirectional",
        "description": "Default GPIO PE0, 5 V tolerant (5VT); alternates TIMER3_ETI, EXMC_NBL0, DCI_D2, EVENTOUT."
      },
      {
        "number": "98",
        "name": "PE1",
        "type": "bidirectional",
        "description": "Default GPIO PE1, 5 V tolerant (5VT); alternates TIMER0_CH1_ON, EXMC_NBL1, DCI_D3, EVENTOUT."
      },
      {
        "number": "99",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground pin (default function VSS)."
      },
      {
        "number": "100",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital power supply pin (default function VDD)."
      }
    ],
    "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: Pin 14 NRST is listed with pin type '-' in Table 2-6; typed as input here as the closest KiCad class; PA4 and PA5 have no I/O level (5VT) marking in Table 2-6, unlike the other I/O pins. Their 5 V toler; Pins 49 and 73 are marked NC in the table; typed as unconnected."
        ],
        "pages_sent": 73,
        "cost_usd": 0.4054,
        "at": "2026-10-18T21:01:20"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589834441142005760",
        "pages": 131,
        "sha256": "7b84a91279c53e4c",
        "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": "gd32f427vet6.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          16.0,
          16.0,
          1.5
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "51720097260ffba41c3062f85f67623721102fa535901c47cb555a1f444feeb3",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "gd32f427vet6-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          16.0,
          16.0,
          1.5
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "4be4daba416bed9811efc4296762d89994f724cc0260148a95a2ed6cb330ade0",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}