GD32F450VKT6

{
  "schema_version": 1,
  "type": "component",
  "slug": "gd32f450vkt6",
  "title": "GD32F450VKT6",
  "brief": "GigaDevice Semicon Beijing Microcontroller Units (MCUs/MPUs/SOCs), LQFP-100(14x14). 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",
    "gd32f450vkt6",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "GD32F450VKT6",
    "manufacturer": "GigaDevice Semicon Beijing",
    "package": "LQFP-100(14x14)",
    "pin_count": 100,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontroller Units (MCUs/MPUs/SOCs)",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/522260da251a4f27b9c8c05ae9933966.pdf",
    "parts": {
      "symbol": "gd32f450vkt6.kicad_sym",
      "footprint": "gd32f450vkt6.kicad_mod",
      "model_3d": "gd32f450vkt6-hero.glb",
      "model_3d_plain": "gd32f450vkt6-etched.glb",
      "model_3d_step": "gd32f450vkt6-etched.step",
      "model_3d_step_plain": "gd32f450vkt6.step",
      "lbr": "gd32f450vkt6.lbr"
    },
    "distributor_links": {
      "lcsc": "C174271"
    },
    "distributor_check": {
      "checked_at": "2026-10-24T00:20:39Z",
      "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": "5V-tolerant GPIO, default PE2; alternates TRACECLK, SPI3_SCK, ETH_MII_TXD3, EXMC_A23, EVENTOUT."
      },
      {
        "number": "2",
        "name": "PE3",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PE3; alternates TRACED0, EXMC_A19, EVENTOUT."
      },
      {
        "number": "3",
        "name": "PE4",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PE4; alternates TRACED1, SPI3_NSS, EXMC_A20, DCI_D4, TLI_B0, EVENTOUT."
      },
      {
        "number": "4",
        "name": "PE5",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PE5; alternates TRACED2, TIMER8_CH0, SPI3_MISO, EXMC_A21, DCI_D6, TLI_G0, EVENTOUT."
      },
      {
        "number": "5",
        "name": "PE6",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PE6; alternates TRACED3, TIMER8_CH1, SPI3_MOSI, EXMC_A22, DCI_D7, TLI_G1, EVENTOUT."
      },
      {
        "number": "6",
        "name": "VBAT",
        "type": "power_in",
        "description": "Backup battery supply pin."
      },
      {
        "number": "7",
        "name": "PC13-TAMPER-RTC",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PC13; additional RTC_TAMP0, RTC_OUT, RTC_TS; alternate EVENTOUT."
      },
      {
        "number": "8",
        "name": "PC14-OSC32_IN",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PC14; additional OSC32IN (32.768 kHz oscillator input); alternate EVENTOUT."
      },
      {
        "number": "9",
        "name": "PC15-OSC32_OUT",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PC15; additional OSC32OUT (32.768 kHz oscillator output); alternate EVENTOUT."
      },
      {
        "number": "10",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin."
      },
      {
        "number": "11",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply pin."
      },
      {
        "number": "12",
        "name": "PH0",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PH0 / OSCIN (main oscillator input); alternate EVENTOUT."
      },
      {
        "number": "13",
        "name": "PH1",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PH1 / OSCOUT (main oscillator output); alternate EVENTOUT."
      },
      {
        "number": "14",
        "name": "NRST",
        "type": "input",
        "description": "System reset pin, default function NRST."
      },
      {
        "number": "15",
        "name": "PC0",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PC0; alternates USBHS_ULPI_STP, EXMC_SDNWE, EVENTOUT; additional ADC012_IN10."
      },
      {
        "number": "16",
        "name": "PC1",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PC1; alternates SPI2_MOSI, I2S2_SD, SPI1_MOSI, I2S1_SD, ETH_MDC, EVENTOUT; additional ADC012_IN11."
      },
      {
        "number": "17",
        "name": "PC2",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PC2; alternates SPI1_MISO, I2S1_ADD_SD, USBHS_ULPI_DIR, ETH_MII_TXD2, EXMC_SDNE0, EVENTOUT; additional ADC012_IN12."
      },
      {
        "number": "18",
        "name": "PC3",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PC3; alternates SPI1_MOSI, I2S1_SD, USBHS_ULPI_NXT, ETH_MII_TX_CLK, EXMC_SDCKE0, EVENTOUT; additional ADC012_IN13."
      },
      {
        "number": "19",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply pin."
      },
      {
        "number": "20",
        "name": "VSSA",
        "type": "power_in",
        "description": "Analog ground pin."
      },
      {
        "number": "21",
        "name": "VREF+",
        "type": "power_in",
        "description": "Positive analog reference voltage pin."
      },
      {
        "number": "22",
        "name": "VDDA",
        "type": "power_in",
        "description": "Analog supply pin."
      },
      {
        "number": "23",
        "name": "PA0-WKUP",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PA0; alternates TIMER1_CH0, TIMER1_ETI, TIMER4_CH0, TIMER7_ETI, USART1_CTS, UART3_TX, ETH_MII_CRS, EVENTOUT; additional ADC012_IN0, WKUP."
      },
      {
        "number": "24",
        "name": "PA1",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PA1; alternates TIMER1_CH1, TIMER4_CH1, SPI3_MOSI, USART1_RTS, UART3_RX, ETH_MII_RX_CLK, ETH_RMII_REF_CLK, EVENTOUT; additional ADC012_IN1."
      },
      {
        "number": "25",
        "name": "PA2",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PA2; alternates TIMER1_CH2, TIMER4_CH2, TIMER8_CH0, I2S_CKIN, USART1_TX, ETH_MDIO, EVENTOUT; additional ADC012_IN2."
      },
      {
        "number": "26",
        "name": "PA3",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PA3; alternates TIMER1_CH3, TIMER4_CH3, TIMER8_CH1, I2S1_MCK, USART1_RX, USBHS_ULPI_D0, ETH_MII_COL, TLI_B5, EVENTOUT; additional ADC012_IN3."
      },
      {
        "number": "27",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin."
      },
      {
        "number": "28",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply pin."
      },
      {
        "number": "29",
        "name": "PA4",
        "type": "bidirectional",
        "description": "TTa-level GPIO, default PA4; alternates SPI0_NSS, SPI2_NSS, I2S2_WS, USART1_CK, USBHS_SOF, DCI_HSYNC, TLI_VSYNC, EVENTOUT; additional ADC01_IN4, DAC_OUT0."
      },
      {
        "number": "30",
        "name": "PA5",
        "type": "bidirectional",
        "description": "TTa-level GPIO, default PA5; alternates TIMER1_CH0, TIMER1_ETI, TIMER7_CH0_ON, SPI0_SCK, USBHS_ULPI_CK, EVENTOUT; additional ADC01_IN5, DAC_OUT1."
      },
      {
        "number": "31",
        "name": "PA6",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PA6; alternates TIMER0_BRKIN, TIMER2_CH0, TIMER7_BRKIN, SPI0_MISO, I2S1_MCK, TIMER12_CH0, SDIO_CMD, DCI_PIXCLK, TLI_G2, EVENTOUT; additional ADC01_IN6."
      },
      {
        "number": "32",
        "name": "PA7",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PA7; alternates TIMER0_CH0_ON, TIMER2_CH1, TIMER7_CH0_ON, SPI0_MOSI, TIMER13_CH0, ETH_MII_RX_DV, ETH_RMII_CRS_DV, EXMC_SDNWE, EVENTOUT; additional ADC01_IN7."
      },
      {
        "number": "33",
        "name": "PC4",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PC4; alternates ETH_MII_RXD0, ETH_RMII_RXD0, EXMC_SDNE0, EVENTOUT; additional ADC01_IN14."
      },
      {
        "number": "34",
        "name": "PC5",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PC5; alternates USART2_RX, ETH_MII_RXD1, ETH_RMII_RXD1, EXMC_SDCKE0, EVENTOUT; additional ADC01_IN15."
      },
      {
        "number": "35",
        "name": "PB0",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PB0; alternates TIMER0_CH1_ON, TIMER2_CH2, TIMER7_CH1_ON, SPI4_SCK, SPI2_MOSI, I2S2_SD, TLI_R3, USBHS_ULPI_D1, ETH_MII_RXD2, SDIO_D1, EVENTOUT; additional ADC01_IN8, IREF."
      },
      {
        "number": "36",
        "name": "PB1",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PB1; alternates TIMER0_CH2_ON, TIMER2_CH3, TIMER7_CH2_ON, SPI4_NSS, TLI_R6, USBHS_ULPI_D2, ETH_MII_RXD3, SDIO_D2, EVENTOUT; additional ADC01_IN9."
      },
      {
        "number": "37",
        "name": "PB2",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PB2 / BOOT1; alternates TIMER1_CH3, SPI2_MOSI, I2S2_SD, USBHS_ULPI_D4, SDIO_CK, EVENTOUT."
      },
      {
        "number": "38",
        "name": "PE7",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PE7; alternates TIMER0_ETI, UART6_RX, EXMC_D4, EVENTOUT."
      },
      {
        "number": "39",
        "name": "PE8",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PE8; alternates TIMER0_CH0_ON, UART6_TX, EXMC_D5, EVENTOUT."
      },
      {
        "number": "40",
        "name": "PE9",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PE9; alternates TIMER0_CH0, EXMC_D6, EVENTOUT."
      },
      {
        "number": "41",
        "name": "PE10",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PE10; alternates TIMER0_CH1_ON, EXMC_D7, EVENTOUT."
      },
      {
        "number": "42",
        "name": "PE11",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PE11; alternates TIMER0_CH1, SPI3_NSS, SPI4_NSS, EXMC_D8, TLI_G3, EVENTOUT."
      },
      {
        "number": "43",
        "name": "PE12",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PE12; alternates TIMER0_CH2_ON, SPI3_SCK, SPI4_SCK, EXMC_D9, TLI_B4, EVENTOUT."
      },
      {
        "number": "44",
        "name": "PE13",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PE13; alternates TIMER0_CH2, SPI3_MISO, SPI4_MISO, EXMC_D10, TLI_DE, EVENTOUT."
      },
      {
        "number": "45",
        "name": "PE14",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PE14; alternates TIMER0_CH3, SPI3_MOSI, SPI4_MOSI, EXMC_D11, TLI_PIXCLK, EVENTOUT."
      },
      {
        "number": "46",
        "name": "PE15",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PE15; alternates TIMER0_BRKIN, EXMC_D12, TLI_R7, EVENTOUT."
      },
      {
        "number": "47",
        "name": "PB10",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PB10; alternates TIMER1_CH2, I2C1_SCL, SPI1_SCK, I2S1_CK, I2S2_MCK, USART2_TX, USBHS_ULPI_D3, ETH_MII_RX_ER, SDIO_D7, TLI_G4, EVENTOUT."
      },
      {
        "number": "48",
        "name": "PB11",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PB11; alternates TIMER1_CH3, I2C1_SDA, I2S_CKIN, USART2_RX, USBHS_ULPI_D4, ETH_MII_TX_EN, ETH_RMII_TX_EN, TLI_G5, EVENTOUT."
      },
      {
        "number": "49",
        "name": "NC",
        "type": "unconnected",
        "description": "Listed as NC in the pin table (default function VCORE, type power); no connection stated in the LQFP100 figure."
      },
      {
        "number": "50",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply pin."
      },
      {
        "number": "51",
        "name": "PB12",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PB12; alternates TIMER0_BRKIN, I2C1_SMBA, SPI1_NSS, I2S1_WS, SPI3_NSS, USART2_CK, CAN1_RX, USBHS_ULPI_D5, ETH_MII_TXD0, ETH_RMII_TXD0, USBHS_ID, EVENTOUT."
      },
      {
        "number": "52",
        "name": "PB13",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PB13; alternates TIMER0_CH0_ON, SPI1_SCK, I2S1_CK, SPI3_SCK, USART2_CTS, CAN1_TX, USBHS_ULPI_D6, ETH_MII_TXD1, ETH_RMII_TXD1, EVENTOUT, I2C1_TXFRAME; additional USBHS_VBUS."
      },
      {
        "number": "53",
        "name": "PB14",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PB14; alternates TIMER0_CH1_ON, TIMER7_CH1_ON, SPI1_MISO, I2S1_ADD_SD, USART2_RTS, TIMER11_CH0, USBHS_DM, EVENTOUT."
      },
      {
        "number": "54",
        "name": "PB15",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PB15; alternates RTC_REFIN, TIMER0_CH2_ON, TIMER7_CH2_ON, SPI1_MOSI, I2S1_SD, TIMER11_CH1, USBHS_DP, EVENTOUT."
      },
      {
        "number": "55",
        "name": "PD8",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PD8; alternates USART2_TX, EXMC_D13, EVENTOUT."
      },
      {
        "number": "56",
        "name": "PD9",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PD9; alternates USART2_RX, EXMC_D14, EVENTOUT."
      },
      {
        "number": "57",
        "name": "PD10",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PD10; alternates USART2_CK, EXMC_D15, TLI_B3, EVENTOUT."
      },
      {
        "number": "58",
        "name": "PD11",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PD11; alternates USART2_CTS, EXMC_A16, EVENTOUT."
      },
      {
        "number": "59",
        "name": "PD12",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PD12; alternates TIMER3_CH0, USART2_RTS, EXMC_A17, EVENTOUT."
      },
      {
        "number": "60",
        "name": "PD13",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PD13; alternates TIMER3_CH1, EXMC_A18, EVENTOUT."
      },
      {
        "number": "61",
        "name": "PD14",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PD14; alternates TIMER3_CH2, EXMC_D0, EVENTOUT."
      },
      {
        "number": "62",
        "name": "PD15",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PD15; alternates TIMER3_CH3, EXMC_D1, EVENTOUT, CTC_SYNC."
      },
      {
        "number": "63",
        "name": "PC6",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PC6; alternates TIMER2_CH0, TIMER7_CH0, I2S1_MCK, USART5_TX, SDIO_D6, DCI_D0, TLI_HSYNC, EVENTOUT."
      },
      {
        "number": "64",
        "name": "PC7",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PC7; alternates TIMER2_CH1, TIMER7_CH1, SPI1_SCK, I2S1_CK, I2S2_MCK, USART5_RX, SDIO_D7, DCI_D1, TLI_G6, EVENTOUT."
      },
      {
        "number": "65",
        "name": "PC8",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PC8; alternates TRACED0, TIMER2_CH2, TIMER7_CH2, USART5_CK, SDIO_D0, DCI_D2, EVENTOUT."
      },
      {
        "number": "66",
        "name": "PC9",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PC9; alternates CK_OUT1, TIMER2_CH3, TIMER7_CH3, I2C2_SDA, I2S_CKIN, SDIO_D1, DCI_D3, EVENTOUT."
      },
      {
        "number": "67",
        "name": "PA8",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PA8; alternates CK_OUT0, TIMER0_CH0, I2C2_SCL, USART0_CK, USBFS_SOF, SDIO_D1, TLI_R6, EVENTOUT, CTC_SYNC."
      },
      {
        "number": "68",
        "name": "PA9",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PA9; alternates TIMER0_CH1, I2C2_SMBA, SPI1_SCK, I2S1_CK, USART0_TX, SDIO_D2, DCI_D0, EVENTOUT; additional USBFS_VBUS."
      },
      {
        "number": "69",
        "name": "PA10",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PA10; alternates TIMER0_CH2, SPI4_MOSI, USART0_RX, USBFS_ID, DCI_D1, EVENTOUT, I2C2_TXFRAME."
      },
      {
        "number": "70",
        "name": "PA11",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PA11; alternates TIMER0_CH3, SPI3_MISO, USART0_CTS, USART5_TX, CAN0_RX, USBFS_DM, TLI_R4, EVENTOUT."
      },
      {
        "number": "71",
        "name": "PA12",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PA12; alternates TIMER0_ETI, SPI4_MISO, USART0_RTS, USART5_RX, CAN0_TX, USBFS_DP, TLI_R5, EVENTOUT."
      },
      {
        "number": "72",
        "name": "PA13",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default JTMS, SWDIO, PA13; alternate EVENTOUT."
      },
      {
        "number": "73",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection."
      },
      {
        "number": "74",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin."
      },
      {
        "number": "75",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply pin."
      },
      {
        "number": "76",
        "name": "PA14",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default JTCK, SWCLK, PA14; alternate EVENTOUT."
      },
      {
        "number": "77",
        "name": "PA15",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default JTDI, PA15; alternates TIMER1_CH0, TIMER1_ETI, SPI0_NSS, SPI2_NSS, I2S2_WS, USART0_TX, EVENTOUT."
      },
      {
        "number": "78",
        "name": "PC10",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PC10; alternates SPI2_SCK, I2S2_CK, USART2_TX, UART3_TX, SDIO_D2, DCI_D8, TLI_R2, EVENTOUT."
      },
      {
        "number": "79",
        "name": "PC11",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PC11; alternates I2S2_ADD_SD, SPI2_MISO, USART2_RX, UART3_RX, SDIO_D3, DCI_D4, EVENTOUT."
      },
      {
        "number": "80",
        "name": "PC12",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PC12; alternates I2C1_SDA, SPI2_MOSI, I2S2_SD, USART2_CK, UART4_TX, SDIO_CK, DCI_D9, EVENTOUT."
      },
      {
        "number": "81",
        "name": "PD0",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PD0; alternates SPI3_MISO, SPI2_MOSI, I2S2_SD, CAN0_RX, EXMC_D2, EVENTOUT."
      },
      {
        "number": "82",
        "name": "PD1",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PD1; alternates SPI1_NSS, I2S1_WS, CAN0_TX, EXMC_D3, EVENTOUT."
      },
      {
        "number": "83",
        "name": "PD2",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PD2; alternates TIMER2_ETI, UART4_RX, SDIO_CMD, DCI_D11, EVENTOUT."
      },
      {
        "number": "84",
        "name": "PD3",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PD3; alternates TRACED1, SPI1_SCK, I2S1_CK, USART1_CTS, EXMC_CLK, DCI_D5, TLI_G7, EVENTOUT."
      },
      {
        "number": "85",
        "name": "PD4",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PD4; alternates USART1_RTS, EXMC_NOE, EVENTOUT."
      },
      {
        "number": "86",
        "name": "PD5",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PD5; alternates USART1_TX, EXMC_NWE, EVENTOUT."
      },
      {
        "number": "87",
        "name": "PD6",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PD6; alternates SPI2_MOSI, I2S2_SD, USART1_RX, EXMC_NWAIT, DCI_D10, TLI_B2, EVENTOUT."
      },
      {
        "number": "88",
        "name": "PD7",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PD7; alternates USART1_CK, EXMC_NE0, EXMC_NCE1, EVENTOUT."
      },
      {
        "number": "89",
        "name": "PB3",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default JTDO, PB3; alternates TRACESWO, TIMER1_CH1, SPI0_SCK, SPI2_SCK, I2S2_CK, USART0_RX, I2C1_SDA, EVENTOUT."
      },
      {
        "number": "90",
        "name": "PB4",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default JNTRST, PB4; alternates TIMER2_CH0, SPI0_MISO, SPI2_MISO, I2S2_ADD_SD, I2C2_SDA, SDIO_D0, EVENTOUT, I2C0_TXFRAME."
      },
      {
        "number": "91",
        "name": "PB5",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PB5; alternates TIMER2_CH1, I2C0_SMBA, SPI0_MOSI, SPI2_MOSI, I2S2_SD, CAN1_RX, USBHS_ULPI_D7, ETH_PPS_OUT, EXMC_SDCKE1, DCI_D10, EVENTOUT."
      },
      {
        "number": "92",
        "name": "PB6",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PB6; alternates TIMER3_CH0, I2C0_SCL, USART0_TX, CAN1_TX, EXMC_SDNE1, DCI_D5, EVENTOUT."
      },
      {
        "number": "93",
        "name": "PB7",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PB7; alternates TIMER3_CH1, I2C0_SDA, USART0_RX, EXMC_NL, DCI_VSYNC, EVENTOUT."
      },
      {
        "number": "94",
        "name": "BOOT0",
        "type": "input",
        "description": "Boot mode selection pin, default function BOOT0 (5V tolerant)."
      },
      {
        "number": "95",
        "name": "PB8",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PB8; alternates TIMER1_CH0, TIMER1_ETI, TIMER3_CH2, TIMER9_CH0, I2C0_SCL, SPI4_MOSI, CAN0_RX, ETH_MII_TXD3, SDIO_D4, DCI_D6, TLI_B6, EVENTOUT."
      },
      {
        "number": "96",
        "name": "PB9",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PB9; alternates TIMER1_CH1, TIMER3_CH3, TIMER10_CH0, I2C0_SDA, SPI1_NSS, I2S1_WS, CAN0_TX, SDIO_D5, DCI_D7, TLI_B7, EVENTOUT."
      },
      {
        "number": "97",
        "name": "PE0",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PE0; alternates TIMER3_ETI, UART7_RX, EXMC_NBL0, DCI_D2, EVENTOUT."
      },
      {
        "number": "98",
        "name": "PE1",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO, default PE1; alternates TIMER0_CH1_ON, UART7_TX, EXMC_NBL1, DCI_D3, EVENTOUT."
      },
      {
        "number": "99",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin."
      },
      {
        "number": "100",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply pin."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
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        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pin 49 is labelled NC in the pin table but its default function is given as VCORE with type P (power; The datasheet's pin table lists BOOT0 and NRST with I/O or '-' types. They are typed here as inputs ; The datasheet text gives no pin-specific electrical limits such as voltage or current ratings. Descr"
        ],
        "pages_sent": 38,
        "cost_usd": 0.5215,
        "at": "2026-10-24T00:20:10"
      },
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        "pages": 66,
        "sha256": "915c24a1f84de32a",
        "source_tier": "lcsc"
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      "pins": {
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        "described": 100,
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        "refuses_to_fabricate": true
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      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "sha256": "51720097260ffba41c3062f85f67623721102fa535901c47cb555a1f444feeb3",
        "checked": "2026-10-24",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "gd32f450vkt6-etched.step",
        "role": "eda",
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        "origin": "footprint origin = pad-pattern centre",
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    ]
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  "metadata": {
    "specs": {
      "Manufacturer": "GigaDevice Semicon Beijing",
      "Package": "LQFP-100(14x14)",
      "Category": "Embedded Processors & Controllers",
      "Pins": "100"
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          "name": "External analog supply voltage",
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          "name": "Maximum current for GPIO pins",
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          "max": 32,
          "conditions": "VDD=5.0V",
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          "conditions": "VDD=3.3V, TA=25°C",
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          "max": 4,
          "conditions": "VDD=3.3V, fIRC16M=16MHz",
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          "conditions": "VDD=3.3V, fIRC48M=16MHz",
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          "typ": 32,
          "max": 45,
          "conditions": "VDD=VBAT=3.3V, TA=-40°C ~ +85°C",
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          "conditions": "VDD=VBAT=3.3V, TA=25°C",
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          "max": 500,
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          "source": "datasheet"
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          "max": 200,
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          "source": "datasheet"
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          "max": 300,
          "conditions": "VCO freq=500MHz",
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          "source": "datasheet"
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        {
          "name": "Number of program/erase cycles",
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          "kind": "electrical",
          "unit": "kcycles",
          "min": 100,
          "typ": null,
          "max": null,
          "conditions": "TA=-40°C ~ +85°C",
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          "name": "Data retention time",
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          "kind": "electrical",
          "unit": "years",
          "min": 20,
          "typ": null,
          "max": null,
          "conditions": "TA=125°C",
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          "source": "datasheet"
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          "source": "datasheet"
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        {
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          "source": "datasheet"
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          "name": "Standard IO low level input voltage",
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          "max": 1.58,
          "conditions": "VDD=3.3V",
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          "source": "datasheet"
        },
        {
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        },
        {
          "name": "Low level output voltage",
          "symbol": "VOL",
          "kind": "electrical",
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          "conditions": "VDD=3.3V, IIO=8mA",
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        {
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          "source": "datasheet"
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