GD32F427ZGT6

{
  "slug": "gd32f427zgt6",
  "version": "0.1.0",
  "type": "component",
  "description": "GigaDevice Semicon Beijing Microcontroller Units (MCUs/MPUs/SOCs), LQFP-144(20x20). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "embedded processors & controllers",
    "gd32f427zgt6",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "gd32f427zgt6.kicad_sym",
    "gd32f427zgt6.kicad_mod",
    "gd32f427zgt6.glb",
    "gd32f427zgt6.step",
    "gd32f427zgt6.lbr",
    "docs/hero.png",
    "docs/gd32f427zgt6-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "gd32f427zgt6-hero.glb",
    "gd32f427zgt6-hero.overlay.json",
    "gd32f427zgt6-etched.glb"
  ],
  "component": {
    "mpn": "GD32F427ZGT6",
    "manufacturer": "GigaDevice Semicon Beijing",
    "package": "LQFP-144(20x20)",
    "pin_count": 144,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontroller Units (MCUs/MPUs/SOCs)",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/de52f42fc502a87274494c6d52d65ab2.pdf",
    "parts": {
      "symbol": "gd32f427zgt6.kicad_sym",
      "footprint": "gd32f427zgt6.kicad_mod",
      "model_3d": "gd32f427zgt6-hero.glb",
      "model_3d_plain": "gd32f427zgt6-etched.glb",
      "model_3d_step": "gd32f427zgt6-etched.step",
      "model_3d_step_plain": "gd32f427zgt6.step",
      "lbr": "gd32f427zgt6.lbr"
    },
    "distributor_links": {
      "lcsc": "C3029772"
    },
    "distributor_check": {
      "checked_at": "2026-10-27T01:03:00Z",
      "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": "Default PE2, 5 V tolerant I/O; alternate functions ENET_MII_TXD3, EXMC_A23, EVENTOUT."
      },
      {
        "number": "2",
        "name": "PE3",
        "type": "bidirectional",
        "description": "Default PE3, 5 V tolerant I/O; alternate functions EXMC_A19, EVENTOUT."
      },
      {
        "number": "3",
        "name": "PE4",
        "type": "bidirectional",
        "description": "Default PE4, 5 V tolerant I/O; alternate functions EXMC_A20, DCI_D4, EVENTOUT."
      },
      {
        "number": "4",
        "name": "PE5",
        "type": "bidirectional",
        "description": "Default PE5, 5 V tolerant I/O; alternate functions TIMER8_CH0, EXMC_A21, DCI_D6, EVENTOUT."
      },
      {
        "number": "5",
        "name": "PE6",
        "type": "bidirectional",
        "description": "Default PE6, 5 V tolerant I/O; alternate functions TIMER8_CH1, EXMC_A22, DCI_D7, EVENTOUT."
      },
      {
        "number": "6",
        "name": "VBAT",
        "type": "power_in",
        "description": "Power pin, default function VBAT."
      },
      {
        "number": "7",
        "name": "PC13-TAMPER-RTC",
        "type": "bidirectional",
        "description": "Default PC13, 5 V tolerant I/O; additional functions RTC_TAMP0, RTC_OUT, RTC_TS; alternate EVENTOUT."
      },
      {
        "number": "8",
        "name": "PC14-OSC32IN",
        "type": "bidirectional",
        "description": "Default PC14, 5 V tolerant I/O; additional function OSC32IN; alternate EVENTOUT."
      },
      {
        "number": "9",
        "name": "PC15-OSC32OUT",
        "type": "bidirectional",
        "description": "Default PC15, 5 V tolerant I/O; additional function OSC32OUT; alternate EVENTOUT."
      },
      {
        "number": "10",
        "name": "PF0",
        "type": "bidirectional",
        "description": "Default PF0, 5 V tolerant I/O; alternate functions I2C1_SDA, EXMC_A0, EVENTOUT, CTC_SYNC."
      },
      {
        "number": "11",
        "name": "PF1",
        "type": "bidirectional",
        "description": "Default PF1, 5 V tolerant I/O; alternate functions I2C1_SCL, EXMC_A1, EVENTOUT."
      },
      {
        "number": "12",
        "name": "PF2",
        "type": "bidirectional",
        "description": "Default PF2, 5 V tolerant I/O; alternate functions I2C1_SMBA, EXMC_A2, EVENTOUT."
      },
      {
        "number": "13",
        "name": "PF3",
        "type": "bidirectional",
        "description": "Default PF3, 5 V tolerant I/O; alternate functions EXMC_A3, EVENTOUT, I2C1_TXFRAME; additional function ADC2_IN9."
      },
      {
        "number": "14",
        "name": "PF4",
        "type": "bidirectional",
        "description": "Default PF4, 5 V tolerant I/O; alternate functions EXMC_A4, EVENTOUT; additional function ADC2_IN14."
      },
      {
        "number": "15",
        "name": "PF5",
        "type": "bidirectional",
        "description": "Default PF5, 5 V tolerant I/O; alternate functions EXMC_A5, EVENTOUT; additional function ADC2_IN15."
      },
      {
        "number": "16",
        "name": "VSS",
        "type": "power_in",
        "description": "Power pin, default function VSS."
      },
      {
        "number": "17",
        "name": "VDD",
        "type": "power_in",
        "description": "Power pin, default function VDD."
      },
      {
        "number": "18",
        "name": "PF6",
        "type": "bidirectional",
        "description": "Default PF6, 5 V tolerant I/O; alternate functions TIMER9_CH0, EXMC_NIORD, EVENTOUT; additional function ADC2_IN4."
      },
      {
        "number": "19",
        "name": "PF7",
        "type": "bidirectional",
        "description": "Default PF7, 5 V tolerant I/O; alternate functions TIMER10_CH0, EXMC_NREG, EVENTOUT; additional function ADC2_IN5."
      },
      {
        "number": "20",
        "name": "PF8",
        "type": "bidirectional",
        "description": "Default PF8, 5 V tolerant I/O; alternate functions TIMER12_CH0, EXMC_NIOWR, EVENTOUT; additional function ADC2_IN6."
      },
      {
        "number": "21",
        "name": "PF9",
        "type": "bidirectional",
        "description": "Default PF9, 5 V tolerant I/O; alternate functions TIMER13_CH0, EXMC_CD, EVENTOUT; additional function ADC2_IN7."
      },
      {
        "number": "22",
        "name": "PF10",
        "type": "bidirectional",
        "description": "Default PF10, 5 V tolerant I/O; alternate functions EXMC_INTR, DCI_D11, EVENTOUT; additional function ADC2_IN8."
      },
      {
        "number": "23",
        "name": "PH0-OSCIN",
        "type": "bidirectional",
        "description": "Default PH0, 5 V tolerant I/O; additional function OSCIN; alternate EVENTOUT."
      },
      {
        "number": "24",
        "name": "PH1-OSCOUT",
        "type": "bidirectional",
        "description": "Default PH1, 5 V tolerant I/O; additional function OSCOUT; alternate EVENTOUT."
      },
      {
        "number": "25",
        "name": "NRST",
        "type": "input",
        "description": "Default function NRST, reset pin."
      },
      {
        "number": "26",
        "name": "PC0",
        "type": "bidirectional",
        "description": "Default PC0, 5 V tolerant I/O; alternate functions USBHS_ULPI_STP, EXMC_SDNWE, EVENTOUT; additional function ADC012_IN10."
      },
      {
        "number": "27",
        "name": "PC1",
        "type": "bidirectional",
        "description": "Default PC1, 5 V tolerant I/O; alternate functions SPI2_MOSI, I2S2_SD, SPI1_MOSI, I2S1_SD, ENET_MDC, EVENTOUT; additional function ADC012_IN11."
      },
      {
        "number": "28",
        "name": "PC2",
        "type": "bidirectional",
        "description": "Default PC2, 5 V tolerant I/O; alternate functions SPI1_MISO, I2S1_ADD_SD, USBHS_ULPI_DIR, ENET_MII_TXD2, EXMC_SDNE0, EVENTOUT; additional function ADC012_IN12."
      },
      {
        "number": "29",
        "name": "PC3",
        "type": "bidirectional",
        "description": "Default PC3, 5 V tolerant I/O; alternate functions SPI1_MOSI, I2S1_SD, USBHS_ULPI_NXT, ENET_MII_TX_CLK, EXMC_SDCKE0, EVENTOUT; additional function ADC012_IN13."
      },
      {
        "number": "30",
        "name": "VDD",
        "type": "power_in",
        "description": "Power pin, default function VDD."
      },
      {
        "number": "31",
        "name": "VSSA",
        "type": "power_in",
        "description": "Analog power pin, default function VSSA."
      },
      {
        "number": "32",
        "name": "VREFP",
        "type": "power_in",
        "description": "Analog reference voltage pin, default function VREF+."
      },
      {
        "number": "33",
        "name": "VDDA",
        "type": "power_in",
        "description": "Analog power pin, default function VDDA."
      },
      {
        "number": "34",
        "name": "PA0-WKUP",
        "type": "bidirectional",
        "description": "Default PA0, 5 V tolerant I/O; alternate functions TIMER1_CH0, TIMER1_ETI, TIMER4_CH0, TIMER7_ETI, USART1_CTS, UART3_TX, ENET_MII_CRS, EVENTOUT; additional functions ADC012_IN0, WKUP."
      },
      {
        "number": "35",
        "name": "PA1",
        "type": "bidirectional",
        "description": "Default PA1, 5 V tolerant I/O; alternate functions TIMER1_CH1, TIMER4_CH1, USART1_RTS, UART3_RX, ENET_MII_RX_CLK, ENET_RMII_REF_CLK, EVENTOUT; additional function ADC012_IN1."
      },
      {
        "number": "36",
        "name": "PA2",
        "type": "bidirectional",
        "description": "Default PA2, 5 V tolerant I/O; alternate functions TIMER1_CH2, TIMER4_CH2, TIMER8_CH0, I2S_CKIN, USART1_TX, ENET_MDIO, EVENTOUT; additional function ADC012_IN2."
      },
      {
        "number": "37",
        "name": "PA3",
        "type": "bidirectional",
        "description": "Default PA3, 5 V tolerant I/O; alternate functions TIMER1_CH3, TIMER4_CH3, TIMER8_CH1, I2S1_MCK, USART1_RX, USBHS_ULPI_D0, ENET_MII_COL, EVENTOUT; additional function ADC012_IN3."
      },
      {
        "number": "38",
        "name": "VSS",
        "type": "power_in",
        "description": "Power pin, default function VSS."
      },
      {
        "number": "39",
        "name": "VDD",
        "type": "power_in",
        "description": "Power pin, default function VDD."
      },
      {
        "number": "40",
        "name": "PA4",
        "type": "bidirectional",
        "description": "Default PA4; alternate functions SPI0_NSS, SPI2_NSS, I2S2_WS, USART1_CK, USBHS_SOF, DCI_HSYNC, EVENTOUT; additional functions ADC01_IN4, DAC_OUT0."
      },
      {
        "number": "41",
        "name": "PA5",
        "type": "bidirectional",
        "description": "Default PA5; alternate functions TIMER1_CH0, TIMER1_ETI, TIMER7_CH0_ON, SPI0_SCK, USBHS_ULPI_CK, EVENTOUT; additional functions ADC01_IN5, DAC_OUT1."
      },
      {
        "number": "42",
        "name": "PA6",
        "type": "bidirectional",
        "description": "Default PA6, 5 V tolerant I/O; alternate functions TIMER0_BRKIN, TIMER2_CH0, TIMER7_BRKIN, SPI0_MISO, I2S1_MCK, TIMER12_CH0, SDIO_CMD, DCI_PIXCLK, EVENTOUT; additional function ADC01_IN6."
      },
      {
        "number": "43",
        "name": "PA7",
        "type": "bidirectional",
        "description": "Default PA7, 5 V tolerant I/O; alternate functions TIMER0_CH0_ON, TIMER2_CH1, TIMER7_CH0_ON, SPI0_MOSI, TIMER13_CH0, ENET_MII_RX_DV, ENET_RMII_CRS_DV, EXMC_SDNWE, EVENTOUT; additional function ADC01_IN7."
      },
      {
        "number": "44",
        "name": "PC4",
        "type": "bidirectional",
        "description": "Default PC4, 5 V tolerant I/O; alternate functions ENET_MII_RXD0, ENET_RMII_RXD0, EXMC_SDNE0, EVENTOUT; additional function ADC01_IN14."
      },
      {
        "number": "45",
        "name": "PC5",
        "type": "bidirectional",
        "description": "Default PC5, 5 V tolerant I/O; alternate functions USART2_RX, ENET_MII_RXD1, ENET_RMII_RXD1, EXMC_SDCKE0, EVENTOUT; additional function ADC01_IN15."
      },
      {
        "number": "46",
        "name": "PB0",
        "type": "bidirectional",
        "description": "Default PB0, 5 V tolerant I/O; alternate functions TIMER0_CH1_ON, TIMER2_CH2, TIMER7_CH1_ON, SPI2_MOSI, I2S2_SD, USBHS_ULPI_D1, ENET_MII_RXD2, SDIO_D1, EVENTOUT; additional functions ADC01_IN8, IREF."
      },
      {
        "number": "47",
        "name": "PB1",
        "type": "bidirectional",
        "description": "Default PB1, 5 V tolerant I/O; alternate functions TIMER0_CH2_ON, TIMER2_CH3, TIMER7_CH2_ON, USBHS_ULPI_D2, ENET_MII_RXD3, SDIO_D2, EVENTOUT; additional function ADC01_IN9."
      },
      {
        "number": "48",
        "name": "PB2",
        "type": "bidirectional",
        "description": "Default PB2, BOOT1, 5 V tolerant I/O; alternate functions TIMER1_CH3, SPI2_MOSI, I2S2_SD, USBHS_ULPI_D4, SDIO_CK, EVENTOUT."
      },
      {
        "number": "49",
        "name": "PF11",
        "type": "bidirectional",
        "description": "Default PF11, 5 V tolerant I/O; alternate functions EXMC_SDNRAS, DCI_D12, EVENTOUT."
      },
      {
        "number": "50",
        "name": "PF12",
        "type": "bidirectional",
        "description": "Default PF12, 5 V tolerant I/O; alternate functions EXMC_A6, EVENTOUT."
      },
      {
        "number": "51",
        "name": "VSS",
        "type": "power_in",
        "description": "Power pin, default function VSS."
      },
      {
        "number": "52",
        "name": "VDD",
        "type": "power_in",
        "description": "Power pin, default function VDD."
      },
      {
        "number": "53",
        "name": "PF13",
        "type": "bidirectional",
        "description": "Default PF13, 5 V tolerant I/O; alternate functions EXMC_A7, EVENTOUT."
      },
      {
        "number": "54",
        "name": "PF14",
        "type": "bidirectional",
        "description": "Default PF14, 5 V tolerant I/O; alternate functions EXMC_A8, EVENTOUT."
      },
      {
        "number": "55",
        "name": "PF15",
        "type": "bidirectional",
        "description": "Default PF15, 5 V tolerant I/O; alternate functions EXMC_A9, EVENTOUT."
      },
      {
        "number": "56",
        "name": "PG0",
        "type": "bidirectional",
        "description": "Default PG0, 5 V tolerant I/O; alternate functions EXMC_A10, EVENTOUT."
      },
      {
        "number": "57",
        "name": "PG1",
        "type": "bidirectional",
        "description": "Default PG1, 5 V tolerant I/O; alternate functions EXMC_A11, EVENTOUT."
      },
      {
        "number": "58",
        "name": "PE7",
        "type": "bidirectional",
        "description": "Default PE7, 5 V tolerant I/O; alternate functions TIMER0_ETI, EXMC_D4, EVENTOUT."
      },
      {
        "number": "59",
        "name": "PE8",
        "type": "bidirectional",
        "description": "Default PE8, 5 V tolerant I/O; alternate functions TIMER0_CH0_ON, EXMC_D5, EVENTOUT."
      },
      {
        "number": "60",
        "name": "PE9",
        "type": "bidirectional",
        "description": "Default PE9, 5 V tolerant I/O; alternate functions TIMER0_CH0, EXMC_D6, EVENTOUT."
      },
      {
        "number": "61",
        "name": "VSS",
        "type": "power_in",
        "description": "Power pin, default function VSS."
      },
      {
        "number": "62",
        "name": "VDD",
        "type": "power_in",
        "description": "Power pin, default function VDD."
      },
      {
        "number": "63",
        "name": "PE10",
        "type": "bidirectional",
        "description": "Default PE10, 5 V tolerant I/O; alternate functions TIMER0_CH1_ON, EXMC_D7, EVENTOUT."
      },
      {
        "number": "64",
        "name": "PE11",
        "type": "bidirectional",
        "description": "Default PE11, 5 V tolerant I/O; alternate functions TIMER0_CH1, EXMC_D8, EVENTOUT."
      },
      {
        "number": "65",
        "name": "PE12",
        "type": "bidirectional",
        "description": "Default PE12, 5 V tolerant I/O; alternate functions TIMER0_CH2_ON, EXMC_D9, EVENTOUT."
      },
      {
        "number": "66",
        "name": "PE13",
        "type": "bidirectional",
        "description": "Default PE13, 5 V tolerant I/O; alternate functions TIMER0_CH2, EXMC_D10, EVENTOUT."
      },
      {
        "number": "67",
        "name": "PE14",
        "type": "bidirectional",
        "description": "Default PE14, 5 V tolerant I/O; alternate functions TIMER0_CH3, EXMC_D11, EVENTOUT."
      },
      {
        "number": "68",
        "name": "PE15",
        "type": "bidirectional",
        "description": "Default PE15, 5 V tolerant I/O; alternate functions TIMER0_BRKIN, EXMC_D12, EVENTOUT."
      },
      {
        "number": "69",
        "name": "PB10",
        "type": "bidirectional",
        "description": "Default PB10, 5 V tolerant I/O; alternate functions TIMER1_CH2, I2C1_SCL, SPI1_SCK, I2S1_CK, I2S2_MCK, USART2_TX, USBHS_ULPI_D3, ENET_MII_RX_ER, SDIO_D7, EVENTOUT."
      },
      {
        "number": "70",
        "name": "PB11",
        "type": "bidirectional",
        "description": "Default PB11, 5 V tolerant I/O; alternate functions TIMER1_CH3, I2C1_SDA, I2S_CKIN, USART2_RX, USBHS_ULPI_D4, ENET_MII_TX_EN, ENET_RMII_TX_EN, EVENTOUT."
      },
      {
        "number": "71",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected."
      },
      {
        "number": "72",
        "name": "VDD",
        "type": "power_in",
        "description": "Power pin, default function VDD."
      },
      {
        "number": "73",
        "name": "PB12",
        "type": "bidirectional",
        "description": "Default PB12, 5 V tolerant I/O; alternate functions 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": "74",
        "name": "PB13",
        "type": "bidirectional",
        "description": "Default PB13, 5 V tolerant I/O; alternate functions TIMER0_CH0_ON, SPI1_SCK, I2S1_CK, USART2_CTS, CAN1_TX, USBHS_ULPI_D6, ENET_MII_TXD1, ENET_RMII_TXD1, EVENTOUT, I2C1_TXFRAME; additional function USBHS_VBUS."
      },
      {
        "number": "75",
        "name": "PB14",
        "type": "bidirectional",
        "description": "Default PB14, 5 V tolerant I/O; alternate functions TIMER0_CH1_ON, TIMER7_CH1_ON, SPI1_MISO, I2S1_ADD_SD, USART2_RTS, TIMER11_CH0, USBHS_DM, EVENTOUT."
      },
      {
        "number": "76",
        "name": "PB15",
        "type": "bidirectional",
        "description": "Default PB15, 5 V tolerant I/O; alternate functions RTC_REFIN, TIMER0_CH2_ON, TIMER7_CH2_ON, SPI1_MOSI, I2S1_SD, TIMER11_CH1, USBHS_DP, EVENTOUT."
      },
      {
        "number": "77",
        "name": "PD8",
        "type": "bidirectional",
        "description": "Default PD8, 5 V tolerant I/O; alternate functions USART2_TX, EXMC_D13, EVENTOUT."
      },
      {
        "number": "78",
        "name": "PD9",
        "type": "bidirectional",
        "description": "Default PD9, 5 V tolerant I/O; alternate functions USART2_RX, EXMC_D14, EVENTOUT."
      },
      {
        "number": "79",
        "name": "PD10",
        "type": "bidirectional",
        "description": "Default PD10, 5 V tolerant I/O; alternate functions USART2_CK, EXMC_D15, EVENTOUT."
      },
      {
        "number": "80",
        "name": "PD11",
        "type": "bidirectional",
        "description": "Default PD11, 5 V tolerant I/O; alternate functions USART2_CTS, EXMC_A16, EVENTOUT."
      },
      {
        "number": "81",
        "name": "PD12",
        "type": "bidirectional",
        "description": "Default PD12, 5 V tolerant I/O; alternate functions TIMER3_CH0, USART2_RTS, EXMC_A17, EVENTOUT."
      },
      {
        "number": "82",
        "name": "PD13",
        "type": "bidirectional",
        "description": "Default PD13, 5 V tolerant I/O; alternate functions TIMER3_CH1, EXMC_A18, EVENTOUT."
      },
      {
        "number": "83",
        "name": "VSS",
        "type": "power_in",
        "description": "Power pin, default function VSS."
      },
      {
        "number": "84",
        "name": "VDD",
        "type": "power_in",
        "description": "Power pin, default function VDD."
      },
      {
        "number": "85",
        "name": "PD14",
        "type": "bidirectional",
        "description": "Default PD14, 5 V tolerant I/O; alternate functions TIMER3_CH2, EXMC_D0, EVENTOUT."
      },
      {
        "number": "86",
        "name": "PD15",
        "type": "bidirectional",
        "description": "Default PD15, 5 V tolerant I/O; alternate functions TIMER3_CH3, EXMC_D1, EVENTOUT, CTC_SYNC."
      },
      {
        "number": "87",
        "name": "PG2",
        "type": "bidirectional",
        "description": "Default PG2, 5 V tolerant I/O; alternate functions EXMC_A12, EVENTOUT."
      },
      {
        "number": "88",
        "name": "PG3",
        "type": "bidirectional",
        "description": "Default PG3, 5 V tolerant I/O; alternate functions EXMC_A13, EVENTOUT."
      },
      {
        "number": "89",
        "name": "PG4",
        "type": "bidirectional",
        "description": "Default PG4, 5 V tolerant I/O; alternate functions EXMC_A14, EVENTOUT."
      },
      {
        "number": "90",
        "name": "PG5",
        "type": "bidirectional",
        "description": "Default PG5, 5 V tolerant I/O; alternate functions EXMC_A15, EVENTOUT."
      },
      {
        "number": "91",
        "name": "PG6",
        "type": "bidirectional",
        "description": "Default PG6, 5 V tolerant I/O; alternate functions EXMC_INT1, DCI_D12, EVENTOUT."
      },
      {
        "number": "92",
        "name": "PG7",
        "type": "bidirectional",
        "description": "Default PG7, 5 V tolerant I/O; alternate functions USART5_CK, EXMC_INT2, DCI_D13, EVENTOUT."
      },
      {
        "number": "93",
        "name": "PG8",
        "type": "bidirectional",
        "description": "Default PG8, 5 V tolerant I/O; alternate functions USART5_RTS, ENET_PPS_OUT, EXMC_SDCLK, EVENTOUT."
      },
      {
        "number": "94",
        "name": "VSS",
        "type": "power_in",
        "description": "Power pin, default function VSS."
      },
      {
        "number": "95",
        "name": "VDD",
        "type": "power_in",
        "description": "Power pin, default function VDD."
      },
      {
        "number": "96",
        "name": "PC6",
        "type": "bidirectional",
        "description": "Default PC6, 5 V tolerant I/O; alternate functions TIMER2_CH0, TIMER7_CH0, I2S1_MCK, USART5_TX, SDIO_D6, DCI_D0, EVENTOUT."
      },
      {
        "number": "97",
        "name": "PC7",
        "type": "bidirectional",
        "description": "Default PC7, 5 V tolerant I/O; alternate functions TIMER2_CH1, TIMER7_CH1, SPI1_SCK, I2S1_CK, I2S2_MCK, USART5_RX, SDIO_D7, DCI_D1, EVENTOUT."
      },
      {
        "number": "98",
        "name": "PC8",
        "type": "bidirectional",
        "description": "Default PC8, 5 V tolerant I/O; alternate functions TIMER2_CH2, TIMER7_CH2, USART5_CK, SDIO_D0, DCI_D2, EVENTOUT."
      },
      {
        "number": "99",
        "name": "PC9",
        "type": "bidirectional",
        "description": "Default PC9, 5 V tolerant I/O; alternate functions CK_OUT1, TIMER2_CH3, TIMER7_CH3, I2C2_SDA, I2S_CKIN, SDIO_D1, DCI_D3, EVENTOUT."
      },
      {
        "number": "100",
        "name": "PA8",
        "type": "bidirectional",
        "description": "Default PA8, 5 V tolerant I/O; alternate functions CK_OUT0, TIMER0_CH0, I2C2_SCL, USART0_CK, USBFS_SOF, SDIO_D1, EVENTOUT, CTC_SYNC."
      },
      {
        "number": "101",
        "name": "PA9",
        "type": "bidirectional",
        "description": "Default PA9, 5 V tolerant I/O; alternate functions TIMER0_CH1, I2C2_SMBA, SPI1_SCK, I2S1_CK, USART0_TX, SDIO_D2, DCI_D0, EVENTOUT; additional function USBFS_VBUS."
      },
      {
        "number": "102",
        "name": "PA10",
        "type": "bidirectional",
        "description": "Default PA10, 5 V tolerant I/O; alternate functions TIMER0_CH2, USART0_RX, USBFS_ID, DCI_D1, EVENTOUT, I2C2_TXFRAME."
      },
      {
        "number": "103",
        "name": "PA11",
        "type": "bidirectional",
        "description": "Default PA11, 5 V tolerant I/O; alternate functions TIMER0_CH3, USART0_CTS, USART5_TX, CAN0_RX, USBFS_DM, EVENTOUT."
      },
      {
        "number": "104",
        "name": "PA12",
        "type": "bidirectional",
        "description": "Default PA12, 5 V tolerant I/O; alternate functions TIMER0_ETI, USART0_RTS, USART5_RX, CAN0_TX, USBFS_DP, EVENTOUT."
      },
      {
        "number": "105",
        "name": "PA13",
        "type": "bidirectional",
        "description": "Default JTMS, SWDIO, PA13, 5 V tolerant I/O; alternate function EVENTOUT."
      },
      {
        "number": "106",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected."
      },
      {
        "number": "107",
        "name": "VSS",
        "type": "power_in",
        "description": "Power pin, default function VSS."
      },
      {
        "number": "108",
        "name": "VDD",
        "type": "power_in",
        "description": "Power pin, default function VDD."
      },
      {
        "number": "109",
        "name": "PA14",
        "type": "bidirectional",
        "description": "Default JTCK, SWCLK, PA14, 5 V tolerant I/O; alternate function EVENTOUT."
      },
      {
        "number": "110",
        "name": "PA15",
        "type": "bidirectional",
        "description": "Default JTDI, PA15, 5 V tolerant I/O; alternate functions TIMER1_CH0, TIMER1_ETI, SPI0_NSS, SPI2_NSS, I2S2_WS, USART0_TX, EVENTOUT."
      },
      {
        "number": "111",
        "name": "PC10",
        "type": "bidirectional",
        "description": "Default PC10, 5 V tolerant I/O; alternate functions SPI2_SCK, I2S2_CK, USART2_TX, UART3_TX, SDIO_D2, DCI_D8, EVENTOUT."
      },
      {
        "number": "112",
        "name": "PC11",
        "type": "bidirectional",
        "description": "Default PC11, 5 V tolerant I/O; alternate functions I2S2_ADD_SD, SPI2_MISO, USART2_RX, UART3_RX, SDIO_D3, DCI_D4, EVENTOUT."
      },
      {
        "number": "113",
        "name": "PC12",
        "type": "bidirectional",
        "description": "Default PC12, 5 V tolerant I/O; alternate functions I2C1_SDA, SPI2_MOSI, I2S2_SD, USART2_CK, UART4_TX, SDIO_CK, DCI_D9, EVENTOUT."
      },
      {
        "number": "114",
        "name": "PD0",
        "type": "bidirectional",
        "description": "Default PD0, 5 V tolerant I/O; alternate functions SPI2_MOSI, I2S2_SD, CAN0_RX, EXMC_D2, EVENTOUT."
      },
      {
        "number": "115",
        "name": "PD1",
        "type": "bidirectional",
        "description": "Default PD1, 5 V tolerant I/O; alternate functions SPI1_NSS, I2S1_WS, CAN0_TX, EXMC_D3, EVENTOUT."
      },
      {
        "number": "116",
        "name": "PD2",
        "type": "bidirectional",
        "description": "Default PD2, 5 V tolerant I/O; alternate functions TIMER2_ETI, UART4_RX, SDIO_CMD, DCI_D11, EVENTOUT."
      },
      {
        "number": "117",
        "name": "PD3",
        "type": "bidirectional",
        "description": "Default PD3, 5 V tolerant I/O; alternate functions SPI1_SCK, I2S1_CK, USART1_CTS, EXMC_CLK, DCI_D5, EVENTOUT."
      },
      {
        "number": "118",
        "name": "PD4",
        "type": "bidirectional",
        "description": "Default PD4, 5 V tolerant I/O; alternate functions USART1_RTS, EXMC_NOE, EVENTOUT."
      },
      {
        "number": "119",
        "name": "PD5",
        "type": "bidirectional",
        "description": "Default PD5, 5 V tolerant I/O; alternate functions USART1_TX, EXMC_NWE, EVENTOUT."
      },
      {
        "number": "120",
        "name": "VSS",
        "type": "power_in",
        "description": "Power pin, default function VSS."
      },
      {
        "number": "121",
        "name": "VDD",
        "type": "power_in",
        "description": "Power pin, default function VDD."
      },
      {
        "number": "122",
        "name": "PD6",
        "type": "bidirectional",
        "description": "Default PD6, 5 V tolerant I/O; alternate functions SPI2_MOSI, I2S2_SD, USART1_RX, EXMC_NWAIT, DCI_D10, EVENTOUT."
      },
      {
        "number": "123",
        "name": "PD7",
        "type": "bidirectional",
        "description": "Default PD7, 5 V tolerant I/O; alternate functions USART1_CK, EXMC_NE0, EXMC_NCE1, EVENTOUT."
      },
      {
        "number": "124",
        "name": "PG9",
        "type": "bidirectional",
        "description": "Default PG9, 5 V tolerant I/O; alternate functions USART5_RX, EXMC_NE1, EXMC_NCE2, DCI_VSYNC, EVENTOUT."
      },
      {
        "number": "125",
        "name": "PG10",
        "type": "bidirectional",
        "description": "Default PG10, 5 V tolerant I/O; alternate functions EXMC_NCE3_0, EXMC_NE2, DCI_D2, EVENTOUT."
      },
      {
        "number": "126",
        "name": "PG11",
        "type": "bidirectional",
        "description": "Default PG11, 5 V tolerant I/O; alternate functions ENET_MII_TX_EN, ENET_RMII_TX_EN, EXMC_NCE3_1, DCI_D3, EVENTOUT."
      },
      {
        "number": "127",
        "name": "PG12",
        "type": "bidirectional",
        "description": "Default PG12, 5 V tolerant I/O; alternate functions USART5_RTS, EXMC_NE3, EVENTOUT."
      },
      {
        "number": "128",
        "name": "PG13",
        "type": "bidirectional",
        "description": "Default PG13, 5 V tolerant I/O; alternate functions USART5_CTS, ENET_MII_TXD0, ENET_RMII_TXD0, EXMC_A24, EVENTOUT."
      },
      {
        "number": "129",
        "name": "PG14",
        "type": "bidirectional",
        "description": "Default PG14, 5 V tolerant I/O; alternate functions USART5_TX, ENET_MII_TXD1, ENET_RMII_TXD1, EXMC_A25, EVENTOUT."
      },
      {
        "number": "130",
        "name": "VSS",
        "type": "power_in",
        "description": "Power pin, default function VSS."
      },
      {
        "number": "131",
        "name": "VDD",
        "type": "power_in",
        "description": "Power pin, default function VDD."
      },
      {
        "number": "132",
        "name": "PG15",
        "type": "bidirectional",
        "description": "Default PG15, 5 V tolerant I/O; alternate functions USART5_CTS, EXMC_SDNCAS, DCI_D13, EVENTOUT."
      },
      {
        "number": "133",
        "name": "PB3",
        "type": "bidirectional",
        "description": "Default JTDO, PB3, 5 V tolerant I/O; alternate functions TRACESWO, TIMER1_CH1, SPI0_SCK, SPI2_SCK, I2S2_CK, USART0_RX, I2C1_SDA, EVENTOUT."
      },
      {
        "number": "134",
        "name": "PB4",
        "type": "bidirectional",
        "description": "Default NJTRST, PB4, 5 V tolerant I/O; alternate functions TIMER2_CH0, SPI0_MISO, SPI2_MISO, I2S2_ADD_SD, I2C2_SDA, SDIO_D0, EVENTOUT, I2C0_TXFRAME."
      },
      {
        "number": "135",
        "name": "PB5",
        "type": "bidirectional",
        "description": "Default PB5, 5 V tolerant I/O; alternate functions TIMER2_CH1, I2C0_SMBA, SPI0_MOSI, SPI2_MOSI, I2S2_SD, CAN1_RX, USBHS_ULPI_D7, ENET_PPS_OUT, EXMC_SDCKE1, DCI_D10, EVENTOUT."
      },
      {
        "number": "136",
        "name": "PB6",
        "type": "bidirectional",
        "description": "Default PB6, 5 V tolerant I/O; alternate functions TIMER3_CH0, I2C0_SCL, USART0_TX, CAN1_TX, EXMC_SDNE1, DCI_D5, EVENTOUT."
      },
      {
        "number": "137",
        "name": "PB7",
        "type": "bidirectional",
        "description": "Default PB7, 5 V tolerant I/O; alternate functions TIMER3_CH1, I2C0_SDA, USART0_RX, EXMC_NL, DCI_VSYNC, EVENTOUT."
      },
      {
        "number": "138",
        "name": "BOOT0",
        "type": "bidirectional",
        "description": "Default function BOOT0, 5 V tolerant I/O."
      },
      {
        "number": "139",
        "name": "PB8",
        "type": "bidirectional",
        "description": "Default PB8, 5 V tolerant I/O; alternate functions TIMER1_CH0, TIMER1_ETI, TIMER3_CH2, TIMER9_CH0, I2C0_SCL, CAN0_RX, ENET_MII_TXD3, SDIO_D4, DCI_D6, EVENTOUT."
      },
      {
        "number": "140",
        "name": "PB9",
        "type": "bidirectional",
        "description": "Default PB9, 5 V tolerant I/O; alternate functions TIMER1_CH1, TIMER3_CH3, TIMER10_CH0, I2C0_SDA, SPI1_NSS, I2S1_WS, CAN0_TX, SDIO_D5, DCI_D7, EVENTOUT."
      },
      {
        "number": "141",
        "name": "PE0",
        "type": "bidirectional",
        "description": "Default PE0, 5 V tolerant I/O; alternate functions TIMER3_ETI, EXMC_NBL0, DCI_D2, EVENTOUT."
      },
      {
        "number": "142",
        "name": "PE1",
        "type": "bidirectional",
        "description": "Default PE1, 5 V tolerant I/O; alternate functions TIMER0_CH1_ON, EXMC_NBL1, DCI_D3, EVENTOUT."
      },
      {
        "number": "143",
        "name": "PDR_ON",
        "type": "power_in",
        "description": "Power-down reset control pin, default function PDR_ON."
      },
      {
        "number": "144",
        "name": "VDD",
        "type": "power_in",
        "description": "Power 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": null,
        "consensus": "skipped (clean text read)",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [],
        "pages_sent": 73,
        "cost_usd": 0.0074,
        "at": "2026-10-27T01:02:06"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/de52f42fc502a87274494c6d52d65ab2.pdf",
        "pages": 131,
        "sha256": "7b84a91279c53e4c",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 144,
        "described": 144,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "gd32f427zgt6.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          22.0,
          22.0,
          1.5
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "b4d698da8bb7697b754adb5655c932342462d9b9341cdaa081b3604dbdf7559b",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "gd32f427zgt6-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          22.0,
          22.0,
          1.5
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "445150bdb4a5d9724a64023872d771cbba260948bd7af993fd398bdf8e126c07",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}