GD32F425RET6

{
  "schema_version": 1,
  "type": "component",
  "slug": "gd32f425ret6",
  "title": "GD32F425RET6",
  "brief": "GigaDevice Semicon Beijing Microcontrollers (MCU/MPU/SOC), LQFP-64(10x10). 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",
    "embedded processors & controllers",
    "gd32f425ret6",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "GD32F425RET6",
    "manufacturer": "GigaDevice Semicon Beijing",
    "package": "LQFP-64(10x10)",
    "pin_count": 64,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589041815853150208",
    "parts": {
      "symbol": "gd32f425ret6.kicad_sym",
      "footprint": "gd32f425ret6.kicad_mod",
      "model_3d": "gd32f425ret6-hero.glb",
      "model_3d_plain": "gd32f425ret6-etched.glb",
      "model_3d_step": "gd32f425ret6-etched.step",
      "model_3d_step_plain": "gd32f425ret6.step",
      "lbr": "gd32f425ret6.lbr"
    },
    "distributor_links": {
      "lcsc": "C3035746"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T09:16:58Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "error"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VBAT",
        "type": "power_in",
        "description": "Backup power supply pin (default function VBAT); the block diagram shows the backup domain powered by VBAT."
      },
      {
        "number": "2",
        "name": "PC13-TAMPER-RTC",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PC13, alternate function EVENTOUT, and additional functions RTC_TAMP0, RTC_OUT and RTC_TS."
      },
      {
        "number": "3",
        "name": "PC14-OSC32IN",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PC14, alternate function EVENTOUT, and additional function OSC32IN."
      },
      {
        "number": "4",
        "name": "PC15-OSC32OUT",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PC15, alternate function EVENTOUT, and additional function OSC32OUT."
      },
      {
        "number": "5",
        "name": "PH0",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PH0/OSCIN, alternate function EVENTOUT, and additional function OSCIN."
      },
      {
        "number": "6",
        "name": "PH1",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PH1/OSCOUT, alternate function EVENTOUT, and additional function OSCOUT."
      },
      {
        "number": "7",
        "name": "NRST",
        "type": "input",
        "description": "Reset pin (default function NRST); its characteristics are given in section 4.11 and the recommended external circuit in Figure 4-4."
      },
      {
        "number": "8",
        "name": "PC0",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PC0, alternate functions USBHS_ULPI_STP and EVENTOUT, and additional function ADC012_IN10."
      },
      {
        "number": "9",
        "name": "PC1",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PC1, alternate functions SPI2_MOSI, I2S2_SD, SPI1_MOSI, I2S1_SD and EVENTOUT, and additional function ADC012_IN11."
      },
      {
        "number": "10",
        "name": "PC2",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PC2, alternate functions SPI1_MISO, I2S1_ADD_SD, USBHS_ULPI_DIR and EVENTOUT, and additional function ADC012_IN12."
      },
      {
        "number": "11",
        "name": "PC3",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PC3, alternate functions SPI1_MOSI, I2S1_SD, USBHS_ULPI_NXT and EVENTOUT, and additional function ADC012_IN13."
      },
      {
        "number": "12",
        "name": "VSSA",
        "type": "power_in",
        "description": "Analog ground pin (default function VSSA)."
      },
      {
        "number": "13",
        "name": "VDDA",
        "type": "power_in",
        "description": "Analog supply pin (default function VDDA)."
      },
      {
        "number": "14",
        "name": "PA0-WKUP",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PA0, alternate functions TIMER1_CH0, TIMER1_ETI, TIMER4_CH0, TIMER7_ETI, USART1_CTS, UART3_TX and EVENTOUT, and additional functions ADC012_IN0 and WKUP."
      },
      {
        "number": "15",
        "name": "PA1",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PA1, alternate functions TIMER1_CH1, TIMER4_CH1, USART1_RTS, UART3_RX and EVENTOUT, and additional function ADC012_IN1."
      },
      {
        "number": "16",
        "name": "PA2",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PA2, alternate functions TIMER1_CH2, TIMER4_CH2, TIMER8_CH0, I2S_CKIN, USART1_TX and EVENTOUT, and additional function ADC012_IN2."
      },
      {
        "number": "17",
        "name": "PA3",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PA3, alternate functions TIMER1_CH3, TIMER4_CH3, TIMER8_CH1, I2S1_MCK, USART1_RX, USBHS_ULPI_D0 and EVENTOUT, and additional function ADC012_IN3."
      },
      {
        "number": "18",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin (default function VSS)."
      },
      {
        "number": "19",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply pin (default function VDD)."
      },
      {
        "number": "20",
        "name": "PA4",
        "type": "bidirectional",
        "description": "I/O with default function PA4 (no 5VT level is marked for this pin), alternate functions SPI0_NSS, SPI2_NSS/I2S2_WS, USART1_CK, USBHS_SOF, DCI_HSYNC and EVENTOUT, and additional functions ADC01_IN4 and DAC_OUT0."
      },
      {
        "number": "21",
        "name": "PA5",
        "type": "bidirectional",
        "description": "I/O with default function PA5 (no 5VT level is marked for this pin), alternate functions TIMER1_CH0, TIMER1_ETI, TIMER7_CH0_ON, SPI0_SCK, USBHS_ULPI_CK and EVENTOUT, and additional functions ADC01_IN5 and DAC_OUT1."
      },
      {
        "number": "22",
        "name": "PA6",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PA6, alternate functions TIMER0_BRKIN, TIMER2_CH0, TIMER7_BRKIN, SPI0_MISO, I2S1_MCK, TIMER12_CH0, SDIO_CMD, DCI_PIXCLK and EVENTOUT, and additional function ADC01_IN6."
      },
      {
        "number": "23",
        "name": "PA7",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PA7, alternate functions TIMER0_CH0_ON, TIMER2_CH1, TIMER7_CH0_ON, SPI0_MOSI, TIMER13_CH0 and EVENTOUT, and additional function ADC01_IN7."
      },
      {
        "number": "24",
        "name": "PC4",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PC4, alternate function EVENTOUT, and additional function ADC01_IN14."
      },
      {
        "number": "25",
        "name": "PC5",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PC5, alternate functions USART2_RX and EVENTOUT, and additional function ADC01_IN15."
      },
      {
        "number": "26",
        "name": "PB0",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PB0, alternate functions TIMER0_CH1_ON, TIMER2_CH2, TIMER7_CH1_ON, SPI2_MOSI, I2S2_SD, USBHS_ULPI_D1, SDIO_D1 and EVENTOUT, and additional functions ADC01_IN8 and IREF."
      },
      {
        "number": "27",
        "name": "PB1",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PB1, alternate functions TIMER0_CH2_ON, TIMER2_CH3, TIMER7_CH2_ON, USBHS_ULPI_D2, SDIO_D2 and EVENTOUT, and additional function ADC01_IN9."
      },
      {
        "number": "28",
        "name": "PB2",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default functions PB2 and BOOT1, alternate functions TIMER1_CH3, SPI2_MOSI, I2S2_SD, USBHS_ULPI_D4, SDIO_CK and EVENTOUT."
      },
      {
        "number": "29",
        "name": "PB10",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PB10, alternate functions TIMER1_CH2, I2C1_SCL, SPI1_SCK, I2S1_CK, I2S2_MCK, USART2_TX, USBHS_ULPI_D3, SDIO_D7 and EVENTOUT."
      },
      {
        "number": "30",
        "name": "PB11",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PB11, alternate functions TIMER1_CH3, I2C1_SDA, I2S_CKIN, USART2_RX, USBHS_ULPI_D4 and EVENTOUT."
      },
      {
        "number": "31",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected."
      },
      {
        "number": "32",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply pin (default function VDD)."
      },
      {
        "number": "33",
        "name": "PB12",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PB12, alternate functions TIMER0_BRKIN, I2C1_SMBA, SPI1_NSS, I2S1_WS, USART2_CK, CAN1_RX, USBHS_ULPI_D5, USBHS_ID and EVENTOUT."
      },
      {
        "number": "34",
        "name": "PB13",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PB13, alternate functions TIMER0_CH0_ON, SPI1_SCK, I2S1_CK, USART2_CTS, CAN1_TX, USBHS_ULPI_D6, EVENTOUT and I2C1_TXFRAME, and additional function USBHS_VBUS."
      },
      {
        "number": "35",
        "name": "PB14",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PB14, alternate functions TIMER0_CH1_ON, TIMER7_CH1_ON, SPI1_MISO, I2S1_ADD_SD, USART2_RTS, TIMER11_CH0, USBHS_DM and EVENTOUT."
      },
      {
        "number": "36",
        "name": "PB15",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PB15, alternate functions RTC_REFIN, TIMER0_CH2_ON, TIMER7_CH2_ON, SPI1_MOSI, I2S1_SD, TIMER11_CH1, USBHS_DP and EVENTOUT."
      },
      {
        "number": "37",
        "name": "PC6",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PC6, alternate functions TIMER2_CH0, TIMER7_CH0, I2S1_MCK, USART5_TX, SDIO_D6, DCI_D0 and EVENTOUT."
      },
      {
        "number": "38",
        "name": "PC7",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PC7, alternate functions TIMER2_CH1, TIMER7_CH1, SPI1_SCK, I2S1_CK, I2S2_MCK, USART5_RX, SDIO_D7, DCI_D1 and EVENTOUT."
      },
      {
        "number": "39",
        "name": "PC8",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PC8, alternate functions TRACED0, TIMER2_CH2, TIMER7_CH2, USART5_CK, SDIO_D0, DCI_D2 and EVENTOUT."
      },
      {
        "number": "40",
        "name": "PC9",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PC9, alternate functions CK_OUT1, TIMER2_CH3, TIMER7_CH3, I2C2_SDA, I2S_CKIN, SDIO_D1, DCI_D3 and EVENTOUT."
      },
      {
        "number": "41",
        "name": "PA8",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PA8, alternate functions CK_OUT0, TIMER0_CH0, I2C2_SCL, USART0_CK, USBFS_SOF, SDIO_D1, EVENTOUT and CTC_SYNC."
      },
      {
        "number": "42",
        "name": "PA9",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PA9, alternate functions TIMER0_CH1, I2C2_SMBA, SPI1_SCK, I2S1_CK, USART0_TX, SDIO_D2, DCI_D0 and EVENTOUT, and additional function USBFS_VBUS."
      },
      {
        "number": "43",
        "name": "PA10",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PA10, alternate functions TIMER0_CH2, I2C2_TXFRAME, USART0_RX, USBFS_ID, DCI_D1 and EVENTOUT."
      },
      {
        "number": "44",
        "name": "PA11",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PA11, alternate functions TIMER0_CH3, USART0_CTS, USART5_TX, CAN0_RX, USBFS_DM and EVENTOUT."
      },
      {
        "number": "45",
        "name": "PA12",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PA12, alternate functions TIMER0_ETI, USART0_RTS, USART5_RX, CAN0_TX, USBFS_DP and EVENTOUT."
      },
      {
        "number": "46",
        "name": "PA13",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default functions JTMS, SWDIO and PA13, alternate function EVENTOUT."
      },
      {
        "number": "47",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected."
      },
      {
        "number": "48",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply pin (default function VDD)."
      },
      {
        "number": "49",
        "name": "PA14",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default functions JTCK, SWCLK and PA14, alternate function EVENTOUT."
      },
      {
        "number": "50",
        "name": "PA15",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default functions JTDI and PA15, alternate functions TIMER1_CH0, TIMER1_ETI, SPI0_NSS, SPI2_NSS/I2S2_WS, USART0_TX and EVENTOUT."
      },
      {
        "number": "51",
        "name": "PC10",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PC10, alternate functions SPI2_SCK/I2S2_CK, USART2_TX, UART3_TX, SDIO_D2, DCI_D8 and EVENTOUT."
      },
      {
        "number": "52",
        "name": "PC11",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PC11, alternate functions I2S2_ADD_SD, SPI2_MISO, USART2_RX, UART3_RX, SDIO_D3, DCI_D4 and EVENTOUT."
      },
      {
        "number": "53",
        "name": "PC12",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PC12, alternate functions I2C1_SDA, SPI2_MOSI/I2S2_SD, USART2_CK, UART4_TX, SDIO_CK, DCI_D9 and EVENTOUT."
      },
      {
        "number": "54",
        "name": "PD2",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PD2, alternate functions TIMER2_ETI, UART4_RX, SDIO_CMD, DCI_D11 and EVENTOUT."
      },
      {
        "number": "55",
        "name": "PB3",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default functions JTDO and PB3, alternate functions TRACESWO, TIMER1_CH1, SPI0_SCK, SPI2_SCK/I2S2_CK, USART0_RX, I2C1_SDA and EVENTOUT."
      },
      {
        "number": "56",
        "name": "PB4",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default functions NJTRST and PB4, alternate functions TIMER2_CH0, I2C0_TXFRAME, SPI0_MISO, SPI2_MISO, I2S2_ADD_SD, I2C2_SDA, SDIO_D0 and EVENTOUT."
      },
      {
        "number": "57",
        "name": "PB5",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PB5, alternate functions TIMER2_CH1, I2C0_SMBA, SPI0_MOSI, SPI2_MOSI/I2S2_SD, CAN1_RX, USBHS_ULPI_D7, DCI_D10 and EVENTOUT."
      },
      {
        "number": "58",
        "name": "PB6",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PB6, alternate functions TIMER3_CH0, I2C0_SCL, USART0_TX, CAN1_TX, DCI_D5 and EVENTOUT."
      },
      {
        "number": "59",
        "name": "PB7",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PB7, alternate functions TIMER3_CH1, I2C0_SDA, USART0_RX, DCI_VSYNC and EVENTOUT."
      },
      {
        "number": "60",
        "name": "BOOT0",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function BOOT0."
      },
      {
        "number": "61",
        "name": "PB8",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PB8, alternate functions TIMER1_CH0, TIMER1_ETI, TIMER3_CH2, TIMER9_CH0, I2C0_SCL, CAN0_RX, SDIO_D4, DCI_D6 and EVENTOUT."
      },
      {
        "number": "62",
        "name": "PB9",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PB9, alternate functions TIMER1_CH1, TIMER3_CH3, TIMER10_CH0, I2C0_SDA, SPI1_NSS/I2S1_WS, CAN0_TX, SDIO_D5, DCI_D7 and EVENTOUT."
      },
      {
        "number": "63",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin (default function VSS)."
      },
      {
        "number": "64",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital 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: Table 2-6 (LQFP64 pin definitions) has an unnumbered VSS row between NC pin 47 and VDD pin 48 (print; The datasheet lists the pin type of NRST as '-' (not specified). It is typed here as 'input' as a re; The 5VT (5 V tolerant) level is not marked for PA4 and PA5 in the LQFP64 table, so the description s"
        ],
        "pages_sent": 53,
        "cost_usd": 0.2809,
        "at": "2026-10-19T09:16:34"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589041815853150208",
        "pages": 104,
        "sha256": "21eb95dfda9a015d",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 64,
        "described": 64,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "gd32f425ret6.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          12,
          12,
          1.5
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "b0c827bc5c05552175d28affe44a5bd2ab45c9c36efff6ff07a74cc449b13db4",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "gd32f425ret6-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          12,
          12,
          1.5
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "f53de10f9ffeb9858b9d6fa75194bd3242d07497f7f5a126388b609bf55ea2ad",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "GigaDevice Semicon Beijing",
      "Package": "LQFP-64(10x10)",
      "Category": "Embedded Processors & Controllers",
      "Pins": "64"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "21eb95dfda9a015dca4e203493ab54f3e7ad394b9175c8f13174f6a105008e2f",
      "rows": [
        {
          "name": "External voltage range",
          "symbol": "VDD",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 3.6,
          "conditions": "",
          "source_page": 61,
          "source": "datasheet"
        },
        {
          "name": "External analog supply voltage",
          "symbol": "VDDA",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 3.6,
          "conditions": "",
          "source_page": 61,
          "source": "datasheet"
        },
        {
          "name": "External battery supply voltage",
          "symbol": "VBAT",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 3.6,
          "conditions": "",
          "source_page": 61,
          "source": "datasheet"
        },
        {
          "name": "Input voltage on other I/O",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 3.6,
          "conditions": "Input voltage on other I/O",
          "source_page": 61,
          "source": "datasheet"
        },
        {
          "name": "Variations between different VDD power pins",
          "symbol": "|ΔVDDX|",
          "kind": "absolute_maximum",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "",
          "source_page": 61,
          "source": "datasheet"
        },
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          "name": "Variations between different ground pins",
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