GD32F303CET6

{
  "slug": "gd32f303cet6",
  "version": "0.1.0",
  "type": "component",
  "description": "GigaDevice Semicon Beijing Microcontrollers (MCU/MPU/SOC), LQFP-48(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "embedded processors & controllers",
    "gd32f303cet6",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "gd32f303cet6.kicad_sym",
    "gd32f303cet6.kicad_mod",
    "gd32f303cet6.glb",
    "gd32f303cet6.step",
    "gd32f303cet6.lbr",
    "docs/hero.png",
    "docs/gd32f303cet6-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "gd32f303cet6-hero.glb",
    "gd32f303cet6-hero.overlay.json",
    "gd32f303cet6-etched.glb"
  ],
  "component": {
    "mpn": "GD32F303CET6",
    "manufacturer": "GigaDevice Semicon Beijing",
    "package": "LQFP-48(7x7)",
    "pin_count": 48,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588894389972176896",
    "parts": {
      "symbol": "gd32f303cet6.kicad_sym",
      "footprint": "gd32f303cet6.kicad_mod",
      "model_3d": "gd32f303cet6-hero.glb",
      "model_3d_plain": "gd32f303cet6-etched.glb",
      "model_3d_step": "gd32f303cet6-etched.step",
      "model_3d_step_plain": "gd32f303cet6.step",
      "lbr": "gd32f303cet6.lbr"
    },
    "distributor_links": {
      "lcsc": "C2826367"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T00:36:29Z",
      "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": "Backup-domain supply pin; the pin definition table lists only its default function VBAT."
      },
      {
        "number": "2",
        "name": "PC13-TAMPER-RTC",
        "type": "bidirectional",
        "description": "General-purpose I/O PC13 by default, with alternate function TAMPER-RTC."
      },
      {
        "number": "3",
        "name": "PC14-OSC32IN",
        "type": "bidirectional",
        "description": "General-purpose I/O PC14 by default, with alternate function OSC32IN."
      },
      {
        "number": "4",
        "name": "PC15-OSC32OUT",
        "type": "bidirectional",
        "description": "General-purpose I/O PC15 by default, with alternate function OSC32OUT."
      },
      {
        "number": "5",
        "name": "OSCIN",
        "type": "input",
        "description": "Default function OSCIN (oscillator input), remappable to PD0, which cannot be used for EXTI in this package."
      },
      {
        "number": "6",
        "name": "OSCOUT",
        "type": "output",
        "description": "Default function OSCOUT (oscillator output), remappable to PD1, which cannot be used for EXTI in this package."
      },
      {
        "number": "7",
        "name": "NRST",
        "type": "bidirectional",
        "description": "Reset pin with default function NRST; electrical limits are given in the NRST pin characteristics section, not in the pin table."
      },
      {
        "number": "8",
        "name": "VSSA",
        "type": "power_in",
        "description": "Analog ground pin with default function VSSA."
      },
      {
        "number": "9",
        "name": "VDDA",
        "type": "power_in",
        "description": "Analog supply pin with default function VDDA."
      },
      {
        "number": "10",
        "name": "PA0-WKUP",
        "type": "bidirectional",
        "description": "General-purpose I/O PA0 by default; alternates WKUP, USART1_CTS, ADC012_IN0, TIMER1_CH0, TIMER1_ETI and TIMER4_CH0."
      },
      {
        "number": "11",
        "name": "PA1",
        "type": "bidirectional",
        "description": "General-purpose I/O PA1 by default; alternates USART1_RTS, ADC012_IN1, TIMER1_CH1 and TIMER4_CH1."
      },
      {
        "number": "12",
        "name": "PA2",
        "type": "bidirectional",
        "description": "General-purpose I/O PA2 by default; alternates USART1_TX, ADC012_IN2, TIMER1_CH2, TIMER4_CH2 and SPI0_IO2."
      },
      {
        "number": "13",
        "name": "PA3",
        "type": "bidirectional",
        "description": "General-purpose I/O PA3 by default; alternates USART1_RX, ADC012_IN3, TIMER1_CH3, TIMER4_CH3 and SPI0_IO3."
      },
      {
        "number": "14",
        "name": "PA4",
        "type": "bidirectional",
        "description": "General-purpose I/O PA4 by default; alternates SPI0_NSS, USART1_CK, ADC01_IN4 and DAC_OUT0; remap SPI2_NSS and I2S2_WS."
      },
      {
        "number": "15",
        "name": "PA5",
        "type": "bidirectional",
        "description": "General-purpose I/O PA5 by default; alternates SPI0_SCK, ADC01_IN5 and DAC_OUT1."
      },
      {
        "number": "16",
        "name": "PA6",
        "type": "bidirectional",
        "description": "General-purpose I/O PA6 by default; alternates SPI0_MISO, ADC01_IN6 and TIMER2_CH0; remap TIMER0_BRKIN."
      },
      {
        "number": "17",
        "name": "PA7",
        "type": "bidirectional",
        "description": "General-purpose I/O PA7 by default; alternates SPI0_MOSI, ADC01_IN7 and TIMER2_CH1; remap TIMER0_CH0_ON."
      },
      {
        "number": "18",
        "name": "PB0",
        "type": "bidirectional",
        "description": "General-purpose I/O PB0 by default; alternates ADC01_IN8 and TIMER2_CH2; remap TIMER0_CH1_ON."
      },
      {
        "number": "19",
        "name": "PB1",
        "type": "bidirectional",
        "description": "General-purpose I/O PB1 by default; alternates ADC01_IN9 and TIMER2_CH3; remap TIMER0_CH2_ON."
      },
      {
        "number": "20",
        "name": "PB2",
        "type": "bidirectional",
        "description": "5 V tolerant I/O; default function PB2, which is also BOOT1."
      },
      {
        "number": "21",
        "name": "PB10",
        "type": "bidirectional",
        "description": "5 V tolerant I/O; default PB10, alternates I2C1_SCL and USART2_TX; remap TIMER1_CH2."
      },
      {
        "number": "22",
        "name": "PB11",
        "type": "bidirectional",
        "description": "5 V tolerant I/O; default PB11, alternates I2C1_SDA and USART2_RX; remap TIMER1_CH3."
      },
      {
        "number": "23",
        "name": "VSS_1",
        "type": "power_in",
        "description": "Ground pin with default function VSS_1."
      },
      {
        "number": "24",
        "name": "VDD_1",
        "type": "power_in",
        "description": "Supply pin with default function VDD_1."
      },
      {
        "number": "25",
        "name": "PB12",
        "type": "bidirectional",
        "description": "5 V tolerant I/O; default PB12, alternates SPI1_NSS, I2C1_SMBA, USART2_CK, TIMER0_BRKIN and I2S1_WS."
      },
      {
        "number": "26",
        "name": "PB13",
        "type": "bidirectional",
        "description": "5 V tolerant I/O; default PB13, alternates SPI1_SCK, USART2_CTS, TIMER0_CH0_ON and I2S1_CK."
      },
      {
        "number": "27",
        "name": "PB14",
        "type": "bidirectional",
        "description": "5 V tolerant I/O; default PB14, alternates SPI1_MISO, USART2_RTS and TIMER0_CH1_ON."
      },
      {
        "number": "28",
        "name": "PB15",
        "type": "bidirectional",
        "description": "5 V tolerant I/O; default PB15, alternates SPI1_MOSI, TIMER0_CH2_ON and I2S1_SD."
      },
      {
        "number": "29",
        "name": "PA8",
        "type": "bidirectional",
        "description": "5 V tolerant I/O; default PA8, alternates USART0_CK, TIMER0_CH0, CK_OUT0 and CTC_SYNC."
      },
      {
        "number": "30",
        "name": "PA9",
        "type": "bidirectional",
        "description": "5 V tolerant I/O; default PA9, alternates USART0_TX and TIMER0_CH1."
      },
      {
        "number": "31",
        "name": "PA10",
        "type": "bidirectional",
        "description": "5 V tolerant I/O; default PA10, alternates USART0_RX and TIMER0_CH2."
      },
      {
        "number": "32",
        "name": "PA11",
        "type": "bidirectional",
        "description": "5 V tolerant I/O; default PA11, alternates USART0_CTS, CAN0_RX, USBDM and TIMER0_CH3."
      },
      {
        "number": "33",
        "name": "PA12",
        "type": "bidirectional",
        "description": "5 V tolerant I/O; default PA12, alternates USART0_RTS, CAN0_TX, TIMER0_ETI and USBDP."
      },
      {
        "number": "34",
        "name": "PA13",
        "type": "bidirectional",
        "description": "5 V tolerant I/O; default function JTMS/SWDIO, remappable to PA13."
      },
      {
        "number": "35",
        "name": "VSS_2",
        "type": "power_in",
        "description": "Ground pin with default function VSS_2."
      },
      {
        "number": "36",
        "name": "VDD_2",
        "type": "power_in",
        "description": "Supply pin with default function VDD_2."
      },
      {
        "number": "37",
        "name": "PA14",
        "type": "bidirectional",
        "description": "5 V tolerant I/O; default function JTCK/SWCLK, remappable to PA14."
      },
      {
        "number": "38",
        "name": "PA15",
        "type": "bidirectional",
        "description": "5 V tolerant I/O; default function JTDI, alternates SPI2_NSS and I2S2_WS; remaps include TIMER1_CH0, TIMER1_ETI and SPI0_NSS."
      },
      {
        "number": "39",
        "name": "PB3",
        "type": "bidirectional",
        "description": "5 V tolerant I/O; default function JTDO, alternates SPI2_SCK and I2S2_CK; remaps include TRACESWO, TIMER1_CH1 and SPI0_SCK."
      },
      {
        "number": "40",
        "name": "PB4",
        "type": "bidirectional",
        "description": "5 V tolerant I/O; default function NJTRST, alternate SPI2_MISO; remaps include TIMER2_CH0 and SPI0_MISO."
      },
      {
        "number": "41",
        "name": "PB5",
        "type": "bidirectional",
        "description": "I/O with default PB5, alternates I2C0_SMBA, SPI2_MOSI and I2S2_SD; remaps include TIMER2_CH1 and SPI0_MOSI; no 5 V tolerance is listed for this pin."
      },
      {
        "number": "42",
        "name": "PB6",
        "type": "bidirectional",
        "description": "5 V tolerant I/O; default PB6, alternates I2C0_SCL and TIMER3_CH0; remaps include USART0_TX and SPI0_IO2."
      },
      {
        "number": "43",
        "name": "PB7",
        "type": "bidirectional",
        "description": "5 V tolerant I/O; default PB7, alternates I2C0_SDA and TIMER3_CH1; remaps include USART0_RX and SPI0_IO3."
      },
      {
        "number": "44",
        "name": "BOOT0",
        "type": "input",
        "description": "Boot selection input with default function BOOT0."
      },
      {
        "number": "45",
        "name": "PB8",
        "type": "bidirectional",
        "description": "5 V tolerant I/O; default PB8, alternate TIMER3_CH2; remaps include I2C0_SCL and CAN0_RX."
      },
      {
        "number": "46",
        "name": "PB9",
        "type": "bidirectional",
        "description": "5 V tolerant I/O; default PB9, alternate TIMER3_CH3; remaps include I2C0_SDA and CAN0_TX."
      },
      {
        "number": "47",
        "name": "VSS_3",
        "type": "power_in",
        "description": "Ground pin with default function VSS_3."
      },
      {
        "number": "48",
        "name": "VDD_3",
        "type": "power_in",
        "description": "Supply pin with default function VDD_3."
      }
    ],
    "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: Package outline dimensions for LQFP48 (page 84, Table 5-4) are not in the supplied text, so the 7x7 ; Alternate functions marked (3) in the LQFP48 table (TIMER8_CH0/CH1, TIMER9_CH0, TIMER10_CH0, TIMER11; The datasheet gives no electrical limits per pin beyond the 5VT (5 V tolerant) marking. Descriptions"
        ],
        "pages_sent": 41,
        "cost_usd": 0.1842,
        "at": "2026-10-19T00:36:08"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588894389972176896",
        "pages": 91,
        "sha256": "f3a21ce565c85040",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 48,
        "described": 48,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "gd32f303cet6.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9.0,
          9.0,
          1.5
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "9dea352d93177c2904afd7d7b68ea8855ce1ab691f69f8b3e13655600514b6bf",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "gd32f303cet6-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9.0,
          9.0,
          1.5
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "7c137024c091e8010b7a01135f18fcd4a47862d20ca1f38a6280828732b4ee89",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}