GD32E503RET6

{
  "slug": "gd32e503ret6",
  "version": "0.1.0",
  "type": "component",
  "description": "GigaDevice Semicon Beijing Microcontrollers (MCU/MPU/SOC), LQFP-64(10x10). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "embedded processors & controllers",
    "gd32e503ret6",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "gd32e503ret6.kicad_sym",
    "gd32e503ret6.kicad_mod",
    "gd32e503ret6.glb",
    "gd32e503ret6.step",
    "gd32e503ret6.lbr",
    "docs/hero.png",
    "docs/gd32e503ret6-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "gd32e503ret6-hero.glb",
    "gd32e503ret6-hero.overlay.json",
    "gd32e503ret6-etched.glb"
  ],
  "component": {
    "mpn": "GD32E503RET6",
    "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/8589040577430097920",
    "parts": {
      "symbol": "gd32e503ret6.kicad_sym",
      "footprint": "gd32e503ret6.kicad_mod",
      "model_3d": "gd32e503ret6-hero.glb",
      "model_3d_plain": "gd32e503ret6-etched.glb",
      "model_3d_step": "gd32e503ret6-etched.step",
      "model_3d_step_plain": "gd32e503ret6.step",
      "lbr": "gd32e503ret6.lbr"
    },
    "distributor_links": {
      "lcsc": "C2982586"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T05:25:02Z",
      "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": "Power pin with default function VBAT; the datasheet gives no voltage limits for this pin in the pin table."
      },
      {
        "number": "2",
        "name": "PC13-TAMPER-RTC",
        "type": "bidirectional",
        "description": "General-purpose I/O with default function PC13; alternate functions TAMPER-RTC and WKUP1. Electrical level is not stated in the table."
      },
      {
        "number": "3",
        "name": "PC14-OSC32IN",
        "type": "bidirectional",
        "description": "General-purpose I/O with default function PC14; alternate function OSC32IN. Electrical level is not stated in the table."
      },
      {
        "number": "4",
        "name": "PC15-OSC32OUT",
        "type": "bidirectional",
        "description": "General-purpose I/O with default function PC15; alternate function OSC32OUT. Electrical level is not stated in the table."
      },
      {
        "number": "5",
        "name": "OSCIN",
        "type": "input",
        "description": "Oscillator input with default function OSCIN; can be remapped to PD0."
      },
      {
        "number": "6",
        "name": "OSCOUT",
        "type": "output",
        "description": "Oscillator output with default function OSCOUT; can be remapped to PD1."
      },
      {
        "number": "7",
        "name": "NRST",
        "type": "bidirectional",
        "description": "Reset pin with default function NRST."
      },
      {
        "number": "8",
        "name": "PC0",
        "type": "bidirectional",
        "description": "General-purpose I/O with default function PC0; alternate function ADC012_IN10."
      },
      {
        "number": "9",
        "name": "PC1",
        "type": "bidirectional",
        "description": "General-purpose I/O with default function PC1; alternate function ADC012_IN11."
      },
      {
        "number": "10",
        "name": "PC2",
        "type": "bidirectional",
        "description": "General-purpose I/O with default function PC2; alternate functions I2S1_ADD_SD (AFIO-mapped) and ADC012_IN12."
      },
      {
        "number": "11",
        "name": "PC3",
        "type": "bidirectional",
        "description": "General-purpose I/O with default function PC3; alternate function ADC012_IN13."
      },
      {
        "number": "12",
        "name": "VSSA",
        "type": "power_in",
        "description": "Analog ground pin with default function VSSA."
      },
      {
        "number": "13",
        "name": "VDDA",
        "type": "power_in",
        "description": "Analog supply pin with default function VDDA; the table gives no voltage limits."
      },
      {
        "number": "14",
        "name": "PA0-WKUP0",
        "type": "bidirectional",
        "description": "General-purpose I/O with default function PA0; alternate functions WKUP0, USART1_CTS, ADC012_IN0, TIMER1_CH0, TIMER1_ETI, TIMER4_CH0 and TIMER7_ETI."
      },
      {
        "number": "15",
        "name": "PA1",
        "type": "bidirectional",
        "description": "General-purpose I/O with default function PA1; alternate functions USART1_RTS, ADC012_IN1, TIMER4_CH1 and TIMER1_CH1."
      },
      {
        "number": "16",
        "name": "PA2",
        "type": "bidirectional",
        "description": "General-purpose I/O with default function PA2; alternate functions USART1_TX, TIMER4_CH2, ADC012_IN2, TIMER8_CH0 (GD32E503xE only), TIMER1_CH2, SPI0_IO2 and WKUP3."
      },
      {
        "number": "17",
        "name": "PA3",
        "type": "bidirectional",
        "description": "General-purpose I/O with default function PA3; alternate functions USART1_RX, TIMER4_CH3, ADC012_IN3, TIMER1_CH3, TIMER8_CH1 (GD32E503xE only) and SPI0_IO3."
      },
      {
        "number": "18",
        "name": "VSS_4",
        "type": "power_in",
        "description": "Ground pin with default function VSS_4."
      },
      {
        "number": "19",
        "name": "VDD_4",
        "type": "power_in",
        "description": "Power supply pin with default function VDD_4."
      },
      {
        "number": "20",
        "name": "PA4",
        "type": "bidirectional",
        "description": "General-purpose I/O with default function PA4; alternate functions SPI0_NSS, USART1_CK, DAC_OUT0 and ADC01_IN4; remap to SPI2_NSS and I2S2_WS."
      },
      {
        "number": "21",
        "name": "PA5",
        "type": "bidirectional",
        "description": "General-purpose I/O with default function PA5; alternate functions SPI0_SCK, ADC01_IN5 and DAC_OUT1."
      },
      {
        "number": "22",
        "name": "PA6",
        "type": "bidirectional",
        "description": "General-purpose I/O with default function PA6; alternate functions SPI0_MISO, TIMER7_BRKIN, ADC01_IN6, TIMER2_CH0 and TIMER12_CH0 (GD32E503xE only); remap to TIMER0_BRKIN."
      },
      {
        "number": "23",
        "name": "PA7",
        "type": "bidirectional",
        "description": "General-purpose I/O with default function PA7; alternate functions SPI0_MOSI, TIMER7_CH0_ON, ADC01_IN7, TIMER2_CH1 and TIMER13_CH0 (GD32E503xE only); remap to TIMER0_CH0_ON."
      },
      {
        "number": "24",
        "name": "PC4",
        "type": "bidirectional",
        "description": "General-purpose I/O with default function PC4; alternate function ADC01_IN14."
      },
      {
        "number": "25",
        "name": "PC5",
        "type": "bidirectional",
        "description": "General-purpose I/O with default function PC5; alternate functions ADC01_IN15 and WKUP4."
      },
      {
        "number": "26",
        "name": "PB0",
        "type": "bidirectional",
        "description": "General-purpose I/O with default function PB0; alternate functions ADC01_IN8, TIMER2_CH2 and TIMER7_CH1_ON; remap to TIMER0_CH1_ON."
      },
      {
        "number": "27",
        "name": "PB1",
        "type": "bidirectional",
        "description": "General-purpose I/O with default function PB1; alternate functions SHRTIMER_SCOUT (AFIO-mapped), ADC01_IN9, TIMER2_CH3 and TIMER7_CH2_ON; remap to TIMER0_CH2_ON."
      },
      {
        "number": "28",
        "name": "PB2",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PB2 and BOOT1; alternate function SHRTIMER_SCIN (AFIO-mapped)."
      },
      {
        "number": "29",
        "name": "PB10",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PB10; alternate functions SHRTIMER_FLT2 (AFIO-mapped), I2C1_SCL and USART2_TX; remap to TIMER1_CH2."
      },
      {
        "number": "30",
        "name": "PB11",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PB11; alternate functions SHRTIMER_FLT3 (AFIO-mapped), I2C1_SDA and USART2_RX; remap to TIMER1_CH3."
      },
      {
        "number": "31",
        "name": "VSS_1",
        "type": "power_in",
        "description": "Ground pin with default function VSS_1."
      },
      {
        "number": "32",
        "name": "VDD_1",
        "type": "power_in",
        "description": "Power supply pin with default function VDD_1."
      },
      {
        "number": "33",
        "name": "PB12",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PB12; alternate functions SHRTIMER_ST2CH0 (AFIO-mapped), SPI1_NSS, I2S1_WS, I2C1_SMBA, USART2_CK, TIMER0_BRKIN and CAN1_RX."
      },
      {
        "number": "34",
        "name": "PB13",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PB13; alternate functions SHRTIMER_ST2CH1 (AFIO-mapped), SPI1_SCK, I2S1_CK, USART2_CTS, TIMER0_CH0_ON, CAN1_TX and I2C1_TXFRAME."
      },
      {
        "number": "35",
        "name": "PB14",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PB14; alternate functions SHRTIMER_ST3CH0 and I2S1_ADD_SD (AFIO-mapped), SPI1_MISO, USART2_RTS, TIMER0_CH1_ON and TIMER11_CH0 (GD32E503xE only)."
      },
      {
        "number": "36",
        "name": "PB15",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PB15; alternate functions SHRTIMER_ST3CH1 (AFIO-mapped), SPI1_MOSI, TIMER0_CH2_ON, I2S1_SD, TIMER11_CH1 (GD32E503xE only) and WKUP6."
      },
      {
        "number": "37",
        "name": "PC6",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PC6; alternate functions SHRTIMER_EXEV9 and USART5_TX (AFIO-mapped), I2S1_MCK, TIMER7_CH0 and SDIO_D6; remap to TIMER2_CH0."
      },
      {
        "number": "38",
        "name": "PC7",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PC7; alternate functions SHRTIMER_FLT4 and USART5_RX (AFIO-mapped), I2S2_MCK, TIMER7_CH1 and SDIO_D7; remap to TIMER2_CH1."
      },
      {
        "number": "39",
        "name": "PC8",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PC8; alternate functions SHRTIMER_ST4CH0 and USART5_CK (AFIO-mapped), TIMER7_CH2 and SDIO_D0; remap to TIMER2_CH2."
      },
      {
        "number": "40",
        "name": "PC9",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PC9; alternate functions SHRTIMER_ST4CH1 and I2C2_SDA (AFIO-mapped), TIMER7_CH3 and SDIO_D1; remap to TIMER2_CH3."
      },
      {
        "number": "41",
        "name": "PA8",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PA8; alternate functions SHRTIMER_ST0CH0 and I2C2_SCL (AFIO-mapped), USART0_CK, TIMER0_CH0, CK_OUT and CTC_SYNC."
      },
      {
        "number": "42",
        "name": "PA9",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PA9; alternate functions SHRTIMER_ST0CH1 and I2C2_SMBA (AFIO-mapped), USART0_TX and TIMER0_CH1."
      },
      {
        "number": "43",
        "name": "PA10",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PA10; alternate functions SHRTIMER_ST1CH0 (AFIO-mapped), USART0_RX and TIMER0_CH2."
      },
      {
        "number": "44",
        "name": "PA11",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PA11; alternate functions SHRTIMER_ST1CH1 and USART5_TX (AFIO-mapped), USART0_CTS, CAN0_RX, USBDM and TIMER0_CH3."
      },
      {
        "number": "45",
        "name": "PA12",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PA12; alternate functions SHRTIMER_FLT0 and USART5_RX (AFIO-mapped), USART0_RTS, CAN0_TX, USBDP and TIMER0_ETI."
      },
      {
        "number": "46",
        "name": "PA13",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function JTMS/SWDIO; can be remapped to PA13."
      },
      {
        "number": "47",
        "name": "VSS_2",
        "type": "power_in",
        "description": "Ground pin with default function VSS_2."
      },
      {
        "number": "48",
        "name": "VDD_2",
        "type": "power_in",
        "description": "Power supply pin with default function VDD_2."
      },
      {
        "number": "49",
        "name": "PA14",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function JTCK/SWCLK; can be remapped to PA14."
      },
      {
        "number": "50",
        "name": "PA15",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function JTDI; alternate functions SHRTIMER_FLT1 (AFIO-mapped), SPI2_NSS and I2S2_WS; remap to TIMER1_CH0, TIMER1_ETI, PA15 and SPI0_NSS."
      },
      {
        "number": "51",
        "name": "PC10",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PC10; alternate functions I2C2_SCL (AFIO-mapped), UART3_TX and SDIO_D2; remap to USART2_TX, SPI2_SCK and I2S2_CK."
      },
      {
        "number": "52",
        "name": "PC11",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PC11; alternate functions SHRTIMER_EXEV1 and I2S2_ADD_SD (AFIO-mapped), UART3_RX and SDIO_D3; remap to USART2_RX and SPI2_MISO."
      },
      {
        "number": "53",
        "name": "PC12",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PC12; alternate functions SHRTIMER_EXEV0 (AFIO-mapped), UART4_TX and SDIO_CK; remap to USART2_CK, SPI2_MOSI and I2S2_SD."
      },
      {
        "number": "54",
        "name": "PD2",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PD2; alternate functions TIMER2_ETI, UART4_RX and SDIO_CMD."
      },
      {
        "number": "55",
        "name": "PB3",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function JTDO; alternate functions SHRTIMER_SCOUT and SHRTIMER_EXEV8 (AFIO-mapped), SPI2_SCK and I2S2_CK; remap to TIMER1_CH1, PB3, TRACESWO and SPI0_SCK."
      },
      {
        "number": "56",
        "name": "PB4",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function NJTRST; alternate functions SHRTIMER_EXEV6, I2C2_SDA and I2S2_ADD_SD (AFIO-mapped), SPI2_MISO and I2C0_TXFRAME; remap to TIMER2_CH0, PB4 and SPI0_MISO."
      },
      {
        "number": "57",
        "name": "PB5",
        "type": "bidirectional",
        "description": "I/O with default function PB5; alternate functions SHRTIMER_EXEV5 and I2C2_SCL (AFIO-mapped), I2C0_SMBA, SPI2_MOSI, I2S2_SD and WKUP5; remap to TIMER2_CH1, SPI0_MOSI and CAN1_RX. The table does not mark this pin as 5 V tolerant."
      },
      {
        "number": "58",
        "name": "PB6",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PB6; alternate functions SHRTIMER_SCIN and SHRTIMER_EXEV3 (AFIO-mapped), I2C0_SCL and TIMER3_CH0; remap to USART0_TX, CAN1_TX and SPI0_IO2."
      },
      {
        "number": "59",
        "name": "PB7",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PB7; alternate functions SHRTIMER_EXEV2 (AFIO-mapped), I2C0_SDA and TIMER3_CH1; remap to USART0_RX and SPI0_IO3."
      },
      {
        "number": "60",
        "name": "BOOT0",
        "type": "input",
        "description": "Boot mode input with default function BOOT0."
      },
      {
        "number": "61",
        "name": "PB8",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PB8; alternate functions SHRTIMER_EXEV7 and I2C2_SDA (AFIO-mapped), TIMER3_CH2 and TIMER9_CH0 (GD32E503xE only); remap to I2C0_SCL and CAN0_RX."
      },
      {
        "number": "62",
        "name": "PB9",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with default function PB9; alternate functions SHRTIMER_EXEV4 (AFIO-mapped), TIMER3_CH3 and TIMER10_CH0 (GD32E503xE only); remap to I2C0_SDA and CAN0_TX."
      },
      {
        "number": "63",
        "name": "VSS_3",
        "type": "power_in",
        "description": "Ground pin with default function VSS_3."
      },
      {
        "number": "64",
        "name": "VDD_3",
        "type": "power_in",
        "description": "Power 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: Table 2-5 lists PB5 as I/O without the 5VT (5 V tolerant) level marking that other GPIOs carry in th; The LQFP64 table gives no I/O level for PC13, PC14 and PC15; they are backup-domain pins and their e; The pin table gives no voltage or current limits for power/ground pins; only the pin names/defaults "
        ],
        "pages_sent": 43,
        "cost_usd": 0.2294,
        "at": "2026-10-19T05:21:31"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589040577430097920",
        "pages": 98,
        "sha256": "bc8083c4c13a41c1",
        "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": "gd32e503ret6.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": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "gd32e503ret6-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": "2e5a1601fad7fdb16833adbc252f43853acb1317c538cb00634c8dbc4315b002",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}