GD32F427RET6

{
  "slug": "gd32f427ret6",
  "version": "0.1.0",
  "type": "component",
  "description": "GigaDevice Semicon Beijing Microcontroller Units (MCUs/MPUs/SOCs), LQFP-64(10x10). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "single chip microcomputer-microcontroller",
    "gd32f427ret6",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "gd32f427ret6.kicad_sym",
    "gd32f427ret6.kicad_mod",
    "gd32f427ret6.glb",
    "gd32f427ret6.step",
    "gd32f427ret6.lbr",
    "docs/hero.png",
    "docs/gd32f427ret6-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "gd32f427ret6-hero.glb",
    "gd32f427ret6-hero.overlay.json",
    "gd32f427ret6-etched.glb"
  ],
  "component": {
    "mpn": "GD32F427RET6",
    "manufacturer": "GigaDevice Semicon Beijing",
    "package": "LQFP-64(10x10)",
    "pin_count": 64,
    "category": "Single Chip Microcomputer/Microcontroller",
    "subcategory": "Microcontroller Units (MCUs/MPUs/SOCs)",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/86457e8ba7d94d50bef9e203a01270a8.pdf",
    "parts": {
      "symbol": "gd32f427ret6.kicad_sym",
      "footprint": "gd32f427ret6.kicad_mod",
      "model_3d": "gd32f427ret6-hero.glb",
      "model_3d_plain": "gd32f427ret6-etched.glb",
      "model_3d_step": "gd32f427ret6-etched.step",
      "model_3d_step_plain": "gd32f427ret6.step",
      "lbr": "gd32f427ret6.lbr"
    },
    "distributor_links": {
      "lcsc": "C5110340"
    },
    "distributor_check": {
      "checked_at": "2026-10-27T06:37:27Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VBAT",
        "type": "power_in",
        "description": "Default function VBAT, the backup-domain supply pin shown as VBAT-powered in the block diagram."
      },
      {
        "number": "2",
        "name": "PC13-TAMPER-RTC",
        "type": "bidirectional",
        "description": "Default PC13, 5 V tolerant I/O, with additional functions RTC_TAMP0, RTC_OUT and RTC_TS."
      },
      {
        "number": "3",
        "name": "PC14-OSC32IN",
        "type": "bidirectional",
        "description": "Default PC14, 5 V tolerant I/O, with additional function OSC32IN."
      },
      {
        "number": "4",
        "name": "PC15-OSC32OUT",
        "type": "bidirectional",
        "description": "Default PC15, 5 V tolerant I/O, with additional function OSC32OUT."
      },
      {
        "number": "5",
        "name": "PH0-OSCIN",
        "type": "bidirectional",
        "description": "Default PH0, 5 V tolerant I/O, with additional function OSCIN."
      },
      {
        "number": "6",
        "name": "PH1-OSCOUT",
        "type": "bidirectional",
        "description": "Default PH1, 5 V tolerant I/O, with additional function OSCOUT."
      },
      {
        "number": "7",
        "name": "NRST",
        "type": "input",
        "description": "Default function NRST, the reset pin whose characteristics are given in section 4.11."
      },
      {
        "number": "8",
        "name": "PC0",
        "type": "bidirectional",
        "description": "Default PC0, 5 V tolerant I/O, with alternate USBHS_ULPI_STP and EXMC_SDNWE, and additional ADC012_IN10."
      },
      {
        "number": "9",
        "name": "PC1",
        "type": "bidirectional",
        "description": "Default PC1, 5 V tolerant I/O, with alternate SPI2_MOSI, I2S2_SD, SPI1_MOSI, I2S1_SD and ENET_MDC, and additional ADC012_IN11."
      },
      {
        "number": "10",
        "name": "PC2",
        "type": "bidirectional",
        "description": "Default PC2, 5 V tolerant I/O, with alternate SPI1_MISO, I2S1_ADD_SD, USBHS_ULPI_DIR and ENET_MII_TXD2, and additional ADC012_IN12."
      },
      {
        "number": "11",
        "name": "PC3",
        "type": "bidirectional",
        "description": "Default PC3, 5 V tolerant I/O, with alternate SPI1_MOSI, I2S1_SD, USBHS_ULPI_NXT and ENET_MII_TX_CLK, and additional ADC012_IN13."
      },
      {
        "number": "12",
        "name": "VSSA",
        "type": "power_in",
        "description": "Default function VSSA, the analog supply ground pin."
      },
      {
        "number": "13",
        "name": "VDDA",
        "type": "power_in",
        "description": "Default function VDDA, the analog supply pin."
      },
      {
        "number": "14",
        "name": "PA0-WKUP",
        "type": "bidirectional",
        "description": "Default PA0, 5 V tolerant I/O, with alternate TIMER1_CH0, USART1_CTS and ENET_MII_CRS, and additional ADC012_IN0 and WKUP."
      },
      {
        "number": "15",
        "name": "PA1",
        "type": "bidirectional",
        "description": "Default PA1, 5 V tolerant I/O, with alternate TIMER1_CH1, USART1_RTS and ENET_RMII_REF_CLK, and additional ADC012_IN1."
      },
      {
        "number": "16",
        "name": "PA2",
        "type": "bidirectional",
        "description": "Default PA2, 5 V tolerant I/O, with alternate TIMER1_CH2, I2S_CKIN, USART1_TX and ENET_MDIO, and additional ADC012_IN2."
      },
      {
        "number": "17",
        "name": "PA3",
        "type": "bidirectional",
        "description": "Default PA3, 5 V tolerant I/O, with alternate TIMER1_CH3, I2S1_MCK, USART1_RX and USBHS_ULPI_D0, and additional ADC012_IN3."
      },
      {
        "number": "18",
        "name": "VSS",
        "type": "power_in",
        "description": "Default function VSS, the ground pin."
      },
      {
        "number": "19",
        "name": "VDD",
        "type": "power_in",
        "description": "Default function VDD, the digital supply pin."
      },
      {
        "number": "20",
        "name": "PA4",
        "type": "bidirectional",
        "description": "Default PA4, with alternate SPI0_NSS, SPI2_NSS/I2S2_WS, USART1_CK, USBHS_SOF and DCI_HSYNC, and additional ADC01_IN4 and DAC_OUT0."
      },
      {
        "number": "21",
        "name": "PA5",
        "type": "bidirectional",
        "description": "Default PA5, with alternate TIMER1_CH0, SPI0_SCK and USBHS_ULPI_CK, and additional ADC01_IN5 and DAC_OUT1."
      },
      {
        "number": "22",
        "name": "PA6",
        "type": "bidirectional",
        "description": "Default PA6, 5 V tolerant I/O, with alternate TIMER0_BRKIN, SPI0_MISO, SDIO_CMD and DCI_PIXCLK, and additional ADC01_IN6."
      },
      {
        "number": "23",
        "name": "PA7",
        "type": "bidirectional",
        "description": "Default PA7, 5 V tolerant I/O, with alternate TIMER0_CH0_ON, SPI0_MOSI, ENET_MII_RX_DV and EXMC_SDNWE, and additional ADC01_IN7."
      },
      {
        "number": "24",
        "name": "PC4",
        "type": "bidirectional",
        "description": "Default PC4, 5 V tolerant I/O, with alternate ENET_MII_RXD0 and ENET_RMII_RXD0, and additional ADC01_IN14."
      },
      {
        "number": "25",
        "name": "PC5",
        "type": "bidirectional",
        "description": "Default PC5, 5 V tolerant I/O, with alternate USART2_RX, ENET_MII_RXD1 and ENET_RMII_RXD1, and additional ADC01_IN15."
      },
      {
        "number": "26",
        "name": "PB0",
        "type": "bidirectional",
        "description": "Default PB0, 5 V tolerant I/O, with alternate TIMER0_CH1_ON, SPI2_MOSI, USBHS_ULPI_D1 and SDIO_D1, and additional ADC01_IN8 and IREF."
      },
      {
        "number": "27",
        "name": "PB1",
        "type": "bidirectional",
        "description": "Default PB1, 5 V tolerant I/O, with alternate TIMER0_CH2_ON, USBHS_ULPI_D2, ENET_MII_RXD3 and SDIO_D2, and additional ADC01_IN9."
      },
      {
        "number": "28",
        "name": "PB2",
        "type": "bidirectional",
        "description": "Default PB2 with BOOT1, 5 V tolerant I/O, with alternate TIMER1_CH3, SPI2_MOSI, USBHS_ULPI_D4 and SDIO_CK."
      },
      {
        "number": "29",
        "name": "PB10",
        "type": "bidirectional",
        "description": "Default PB10, 5 V tolerant I/O, with alternate TIMER1_CH2, I2C1_SCL, SPI1_SCK, USART2_TX, ENET_MII_RX_ER and SDIO_D7."
      },
      {
        "number": "30",
        "name": "PB11",
        "type": "bidirectional",
        "description": "Default PB11, 5 V tolerant I/O, with alternate TIMER1_CH3, I2C1_SDA, I2S_CKIN, USART2_RX and ENET_MII_TX_EN."
      },
      {
        "number": "31",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected, as marked NC in the LQFP64 pin definition table."
      },
      {
        "number": "32",
        "name": "VDD",
        "type": "power_in",
        "description": "Default function VDD, the digital supply pin."
      },
      {
        "number": "33",
        "name": "PB12",
        "type": "bidirectional",
        "description": "Default PB12, 5 V tolerant I/O, with alternate TIMER0_BRKIN, I2C1_SMBA, SPI1_NSS, CAN1_RX and USBHS_ID."
      },
      {
        "number": "34",
        "name": "PB13",
        "type": "bidirectional",
        "description": "Default PB13, 5 V tolerant I/O, with alternate TIMER0_CH0_ON, SPI1_SCK, CAN1_TX and ENET_MII_TXD1, and additional USBHS_VBUS."
      },
      {
        "number": "35",
        "name": "PB14",
        "type": "bidirectional",
        "description": "Default PB14, 5 V tolerant I/O, with alternate TIMER0_CH1_ON, SPI1_MISO, USART2_RTS, TIMER11_CH0 and USBHS_DM."
      },
      {
        "number": "36",
        "name": "PB15",
        "type": "bidirectional",
        "description": "Default PB15, 5 V tolerant I/O, with alternate RTC_REFIN, TIMER0_CH2_ON, SPI1_MOSI, TIMER11_CH1 and USBHS_DP."
      },
      {
        "number": "37",
        "name": "PC6",
        "type": "bidirectional",
        "description": "Default PC6, 5 V tolerant I/O, with alternate TIMER2_CH0, I2S1_MCK, USART5_TX, SDIO_D6 and DCI_D0."
      },
      {
        "number": "38",
        "name": "PC7",
        "type": "bidirectional",
        "description": "Default PC7, 5 V tolerant I/O, with alternate TIMER2_CH1, SPI1_SCK, I2S1_CK, USART5_RX, SDIO_D7 and DCI_D1."
      },
      {
        "number": "39",
        "name": "PC8",
        "type": "bidirectional",
        "description": "Default PC8, 5 V tolerant I/O, with alternate TIMER2_CH2, USART5_CK, SDIO_D0 and DCI_D2."
      },
      {
        "number": "40",
        "name": "PC9",
        "type": "bidirectional",
        "description": "Default PC9, 5 V tolerant I/O, with alternate CK_OUT1, TIMER2_CH3, I2C2_SDA, I2S_CKIN, SDIO_D1 and DCI_D3."
      },
      {
        "number": "41",
        "name": "PA8",
        "type": "bidirectional",
        "description": "Default PA8, 5 V tolerant I/O, with alternate CK_OUT0, TIMER0_CH0, I2C2_SCL, USART0_CK, USBFS_SOF and CTC_SYNC."
      },
      {
        "number": "42",
        "name": "PA9",
        "type": "bidirectional",
        "description": "Default PA9, 5 V tolerant I/O, with alternate TIMER0_CH1, I2C2_SMBA, SPI1_SCK, USART0_TX and DCI_D0, and additional USBFS_VBUS."
      },
      {
        "number": "43",
        "name": "PA10",
        "type": "bidirectional",
        "description": "Default PA10, 5 V tolerant I/O, with alternate TIMER0_CH2, USART0_RX, USBFS_ID and DCI_D1."
      },
      {
        "number": "44",
        "name": "PA11",
        "type": "bidirectional",
        "description": "Default PA11, 5 V tolerant I/O, with alternate TIMER0_CH3, USART0_CTS, USART5_TX, CAN0_RX and USBFS_DM."
      },
      {
        "number": "45",
        "name": "PA12",
        "type": "bidirectional",
        "description": "Default PA12, 5 V tolerant I/O, with alternate TIMER0_ETI, USART0_RTS, USART5_RX, CAN0_TX and USBFS_DP."
      },
      {
        "number": "46",
        "name": "PA13",
        "type": "bidirectional",
        "description": "Default JTMS, SWDIO, PA13, 5 V tolerant I/O with alternate function EVENTOUT."
      },
      {
        "number": "47",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected, as marked NC in the LQFP64 pin definition table."
      },
      {
        "number": "48",
        "name": "VDD",
        "type": "power_in",
        "description": "Default function VDD, the digital supply pin."
      },
      {
        "number": "49",
        "name": "PA14",
        "type": "bidirectional",
        "description": "Default JTCK, SWCLK, PA14, 5 V tolerant I/O with alternate function EVENTOUT."
      },
      {
        "number": "50",
        "name": "PA15",
        "type": "bidirectional",
        "description": "Default JTDI, PA15, 5 V tolerant I/O, with alternate TIMER1_CH0, SPI0_NSS, SPI2_NSS/I2S2_WS and USART0_TX."
      },
      {
        "number": "51",
        "name": "PC10",
        "type": "bidirectional",
        "description": "Default PC10, 5 V tolerant I/O, with alternate SPI2_SCK, USART2_TX, UART3_TX and SDIO_D2."
      },
      {
        "number": "52",
        "name": "PC11",
        "type": "bidirectional",
        "description": "Default PC11, 5 V tolerant I/O, with alternate SPI2_MISO, USART2_RX, UART3_RX and SDIO_D3."
      },
      {
        "number": "53",
        "name": "PC12",
        "type": "bidirectional",
        "description": "Default PC12, 5 V tolerant I/O, with alternate I2C1_SDA, SPI2_MOSI, USART2_CK, UART4_TX and SDIO_CK."
      },
      {
        "number": "54",
        "name": "PD2",
        "type": "bidirectional",
        "description": "Default PD2, 5 V tolerant I/O, with alternate TIMER2_ETI, UART4_RX, SDIO_CMD and DCI_D11."
      },
      {
        "number": "55",
        "name": "PB3",
        "type": "bidirectional",
        "description": "Default JTDO, PB3, 5 V tolerant I/O, with alternate TRACESWO, TIMER1_CH1, SPI0_SCK, SPI2_SCK, USART0_RX and I2C1_SDA."
      },
      {
        "number": "56",
        "name": "PB4",
        "type": "bidirectional",
        "description": "Default NJTRST, PB4, 5 V tolerant I/O, with alternate TIMER2_CH0, SPI0_MISO, SPI2_MISO, I2C2_SDA and SDIO_D0."
      },
      {
        "number": "57",
        "name": "PB5",
        "type": "bidirectional",
        "description": "Default PB5, 5 V tolerant I/O, with alternate TIMER2_CH1, I2C0_SMBA, SPI0_MOSI, SPI2_MOSI, CAN1_RX and USBHS_ULPI_D7."
      },
      {
        "number": "58",
        "name": "PB6",
        "type": "bidirectional",
        "description": "Default PB6, 5 V tolerant I/O, with alternate TIMER3_CH0, I2C0_SCL, USART0_TX, CAN1_TX and DCI_D5."
      },
      {
        "number": "59",
        "name": "PB7",
        "type": "bidirectional",
        "description": "Default PB7, 5 V tolerant I/O, with alternate TIMER3_CH1, I2C0_SDA, USART0_RX and DCI_VSYNC."
      },
      {
        "number": "60",
        "name": "BOOT0",
        "type": "bidirectional",
        "description": "Default function BOOT0, 5 V tolerant I/O pin."
      },
      {
        "number": "61",
        "name": "PB8",
        "type": "bidirectional",
        "description": "Default PB8, 5 V tolerant I/O, with alternate TIMER1_CH0, TIMER3_CH2, TIMER9_CH0, I2C0_SCL, CAN0_RX and SDIO_D4."
      },
      {
        "number": "62",
        "name": "PB9",
        "type": "bidirectional",
        "description": "Default PB9, 5 V tolerant I/O, with alternate TIMER1_CH1, TIMER3_CH3, TIMER10_CH0, I2C0_SDA, SPI1_NSS, CAN0_TX and SDIO_D5."
      },
      {
        "number": "63",
        "name": "VSS",
        "type": "power_in",
        "description": "Default function VSS, the ground pin."
      },
      {
        "number": "64",
        "name": "VDD",
        "type": "power_in",
        "description": "Default function VDD, the digital supply pin."
      }
    ],
    "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: Pinout taken from Table 2-8 (GD32F427Rx LQFP64), since Table 6-1 lists GD32F427RET6 as 512 KB in LQF"
        ],
        "pages_sent": 74,
        "cost_usd": 0.1158,
        "at": "2026-10-27T06:36:46"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/86457e8ba7d94d50bef9e203a01270a8.pdf",
        "pages": 131,
        "sha256": "83e96a7176db4826",
        "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": "gd32f427ret6.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          12.0,
          12.0,
          1.5
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "b0c827bc5c05552175d28affe44a5bd2ab45c9c36efff6ff07a74cc449b13db4",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "gd32f427ret6-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          12.0,
          12.0,
          1.5
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "7436fcad69dcb963b75cbef4af0c627a48677365773ebea9dd3dffa9ce7244e5",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}