N32G451VCL7

{
  "schema_version": 1,
  "type": "component",
  "slug": "n32g451vcl7",
  "title": "N32G451VCL7",
  "brief": "Nations Technologies Inc Microcontrollers (MCU/MPU/SOC), 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",
    "n32g451vcl7",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "N32G451VCL7",
    "manufacturer": "Nations Technologies Inc",
    "package": "LQFP-100(14x14)",
    "pin_count": 100,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8757135483187281920",
    "parts": {
      "symbol": "n32g451vcl7.kicad_sym",
      "footprint": "n32g451vcl7.kicad_mod",
      "model_3d": "n32g451vcl7-hero.glb",
      "model_3d_plain": "n32g451vcl7-etched.glb",
      "model_3d_step": "n32g451vcl7-etched.step",
      "model_3d_step_plain": "n32g451vcl7.step",
      "lbr": "n32g451vcl7.lbr"
    },
    "distributor_links": {
      "lcsc": "C19269805",
      "digikey": "6384-N32G451VCL7-ND"
    },
    "distributor_check": {
      "checked_at": "2026-10-20T23:39:48Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "6384-N32G451VCL7-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "PE2",
        "type": "bidirectional",
        "description": "GPIO PE2, 5 V tolerant (FT) with fail-safe; alternate function UART6_TX."
      },
      {
        "number": "2",
        "name": "PE3",
        "type": "bidirectional",
        "description": "GPIO PE3, 5 V tolerant (FT) with fail-safe; alternate function UART6_RX."
      },
      {
        "number": "3",
        "name": "PE4",
        "type": "bidirectional",
        "description": "GPIO PE4, 5 V tolerant (FT) with fail-safe; no alternate function listed."
      },
      {
        "number": "4",
        "name": "PE5",
        "type": "bidirectional",
        "description": "GPIO PE5, 5 V tolerant (FT) with fail-safe; no alternate function listed."
      },
      {
        "number": "5",
        "name": "PE6",
        "type": "bidirectional",
        "description": "GPIO PE6, 5 V tolerant (FT) with fail-safe; no alternate function listed."
      },
      {
        "number": "6",
        "name": "VBAT",
        "type": "power_in",
        "description": "Backup-domain supply, 1.8 V to 3.6 V, powering RTC, 32 kHz oscillator and backup registers when VDD is off."
      },
      {
        "number": "7",
        "name": "PC13-TAMPER-RTC",
        "type": "bidirectional",
        "description": "GPIO PC13 (TAMPER-RTC) powered through a switch limited to 3 mA total for PC13 to PC15; as output limited to 2 MHz with 30 pF max load."
      },
      {
        "number": "8",
        "name": "PC14-OSC32_IN",
        "type": "bidirectional",
        "description": "GPIO PC14 or LSE oscillator input OSC32_IN; PC13 to PC15 share a 3 mA total output current limit."
      },
      {
        "number": "9",
        "name": "PC15-OSC32_OUT",
        "type": "bidirectional",
        "description": "GPIO PC15 or LSE oscillator output OSC32_OUT; PC13 to PC15 share a 3 mA total output current limit."
      },
      {
        "number": "10",
        "name": "VSS_5",
        "type": "power_in",
        "description": "Digital ground pin 5."
      },
      {
        "number": "11",
        "name": "VDD_5",
        "type": "power_in",
        "description": "Digital supply for I/O and internal regulator, 1.8 V to 3.6 V."
      },
      {
        "number": "12",
        "name": "OSC_IN",
        "type": "input",
        "description": "HSE oscillator input for a 4 to 32 MHz crystal/resonator; in bypass mode high level 0.8VDD to VDD."
      },
      {
        "number": "13",
        "name": "OSC_OUT",
        "type": "output",
        "description": "HSE oscillator output for the 4 to 32 MHz crystal/resonator."
      },
      {
        "number": "14",
        "name": "NRST",
        "type": "bidirectional",
        "description": "Active-low reset with internal non-disconnectable pull-up (RPU 30 to 70 kΩ at 3.3 V); pulses below 100 ns are filtered."
      },
      {
        "number": "15",
        "name": "PC0",
        "type": "bidirectional",
        "description": "GPIO PC0, 3.3 V tolerant with analog capability (TTa); alternates ADC12_IN6, I2C3_SCL, UART6_TX."
      },
      {
        "number": "16",
        "name": "PC1",
        "type": "bidirectional",
        "description": "GPIO PC1, 3.3 V tolerant with analog capability (TTa); alternates ADC12_IN7, I2C3_SDA, UART6_RX."
      },
      {
        "number": "17",
        "name": "PC2",
        "type": "bidirectional",
        "description": "GPIO PC2, 3.3 V tolerant with analog capability (TTa); alternates ADC12_IN8, UART7_TX, SPI3_NSS, I2S3_WS."
      },
      {
        "number": "18",
        "name": "PC3",
        "type": "bidirectional",
        "description": "GPIO PC3, 3.3 V tolerant with analog capability (TTa); alternates ADC12_IN9, UART7_RX, SPI3_SCK, I2S3_CK."
      },
      {
        "number": "19",
        "name": "VSSA",
        "type": "power_in",
        "description": "Analog ground, to be connected to VSS."
      },
      {
        "number": "20",
        "name": "VREF-",
        "type": "power_in",
        "description": "Negative ADC reference voltage; may be connected internally to VSSA depending on package."
      },
      {
        "number": "21",
        "name": "VREF+",
        "type": "power_in",
        "description": "Positive ADC/DAC reference voltage, 1.8 V up to VDDA; DAC VREF+ must always be below VDDA."
      },
      {
        "number": "22",
        "name": "VDDA",
        "type": "power_in",
        "description": "Analog supply for ADC/DAC, 1.8 V to 3.6 V, must be the same as VDD (max 300 mV difference)."
      },
      {
        "number": "23",
        "name": "PA0-WKUP",
        "type": "bidirectional",
        "description": "GPIO PA0 with WKUP wake-up function (TTa, 3.3 V tolerant, analog); alternates USART2_CTS, ADC1_IN1, TIM2_CH1_ETR, TIM5_CH1, TIM8_ETR, SPI3_MISO."
      },
      {
        "number": "24",
        "name": "PA1",
        "type": "bidirectional",
        "description": "GPIO PA1 (TTa, 3.3 V tolerant, analog); alternates USART2_RTS, ADC1_IN2, TIM5_CH2, TIM2_CH2, SPI3_MOSI, I2S3_SD."
      },
      {
        "number": "25",
        "name": "PA2",
        "type": "bidirectional",
        "description": "GPIO PA2 (TTa, 3.3 V tolerant, analog); alternates USART2_TX, TIM5_CH3, ADC12_IN11, TIM2_CH3."
      },
      {
        "number": "26",
        "name": "PA3",
        "type": "bidirectional",
        "description": "GPIO PA3 (TTa, 3.3 V tolerant, analog); alternates USART2_RX, TIM5_CH4, ADC1_IN4, TIM2_CH4."
      },
      {
        "number": "27",
        "name": "VSS_4",
        "type": "power_in",
        "description": "Digital ground pin 4."
      },
      {
        "number": "28",
        "name": "VDD_4",
        "type": "power_in",
        "description": "Digital supply for I/O and internal regulator, 1.8 V to 3.6 V."
      },
      {
        "number": "29",
        "name": "PA4",
        "type": "bidirectional",
        "description": "GPIO PA4 (TTa, 3.3 V tolerant, analog); alternates SPI1_NSS, USART2_CK, DAC_OUT1, ADC2_IN1, I2C2_SCL."
      },
      {
        "number": "30",
        "name": "PA5",
        "type": "bidirectional",
        "description": "GPIO PA5 (TTa, 3.3 V tolerant, analog); alternates SPI1_SCK, DAC_OUT2, ADC2_IN2, I2C2_SDA."
      },
      {
        "number": "31",
        "name": "PA6",
        "type": "bidirectional",
        "description": "GPIO PA6 (TTa, 3.3 V tolerant, analog); alternates SPI1_MISO, TIM8_BKIN, ADC1_IN3, TIM3_CH1, TIM1_BKIN."
      },
      {
        "number": "32",
        "name": "PA7",
        "type": "bidirectional",
        "description": "GPIO PA7 (TTa, 3.3 V tolerant, analog); alternates SPI1_MOSI, TIM8_CH1N, ADC2_IN4, TIM3_CH2, TIM1_CH1N."
      },
      {
        "number": "33",
        "name": "PC4",
        "type": "bidirectional",
        "description": "GPIO PC4 (TTa, 3.3 V tolerant, analog); alternates ADC2_IN5, UART7_TX, I2C3_SCL."
      },
      {
        "number": "34",
        "name": "PC5",
        "type": "bidirectional",
        "description": "GPIO PC5 (TTa, 3.3 V tolerant, analog); alternates ADC2_IN12, UART7_RX, I2C3_SDA."
      },
      {
        "number": "35",
        "name": "PB0",
        "type": "bidirectional",
        "description": "GPIO PB0, standard 3.3 V I/O (TC); alternates TIM3_CH3, TIM8_CH2N, TIM1_CH2N, UART6_TX."
      },
      {
        "number": "36",
        "name": "PB1",
        "type": "bidirectional",
        "description": "GPIO PB1 (TTa, 3.3 V tolerant, analog); alternates ADC2_IN3, TIM3_CH4, TIM8_CH3N, TIM1_CH3N, UART6_RX."
      },
      {
        "number": "37",
        "name": "PB2-BOOT1",
        "type": "bidirectional",
        "description": "GPIO PB2 shared with BOOT1 boot-mode input (TTa); alternates ADC2_IN13, UART4_TX, SPI1_NSS."
      },
      {
        "number": "38",
        "name": "PE7",
        "type": "bidirectional",
        "description": "GPIO PE7, standard 3.3 V I/O (TC); alternates TIM1_ETR, UART4_RX, SPI1_SCK."
      },
      {
        "number": "39",
        "name": "PE8",
        "type": "bidirectional",
        "description": "GPIO PE8, standard 3.3 V I/O (TC); alternates TIM1_CH1N, UART5_TX, SDIO_DAT0, SPI1_MISO."
      },
      {
        "number": "40",
        "name": "PE9",
        "type": "bidirectional",
        "description": "GPIO PE9, standard 3.3 V I/O (TC); alternates TIM1_CH1, UART5_RX, SDIO_DAT1, SPI1_MOSI."
      },
      {
        "number": "41",
        "name": "PE10",
        "type": "bidirectional",
        "description": "GPIO PE10, standard 3.3 V I/O (TC); alternates TIM1_CH2N, SDIO_DAT2, SPI2_NSS, I2S2_WS."
      },
      {
        "number": "42",
        "name": "PE11",
        "type": "bidirectional",
        "description": "GPIO PE11, standard 3.3 V I/O (TC); alternates TIM1_CH2, SDIO_DAT3, SPI2_SCK, I2S2_CK."
      },
      {
        "number": "43",
        "name": "PE12",
        "type": "bidirectional",
        "description": "GPIO PE12, standard 3.3 V I/O (TC); alternates TIM1_CH3N, SDIO_CK, SPI2_MISO."
      },
      {
        "number": "44",
        "name": "PE13",
        "type": "bidirectional",
        "description": "GPIO PE13, standard 3.3 V I/O (TC); alternates TIM1_CH3, SPI2_MOSI, I2S2_SD, SDIO_CMD."
      },
      {
        "number": "45",
        "name": "PE14",
        "type": "bidirectional",
        "description": "GPIO PE14, standard 3.3 V I/O (TC); alternate function TIM1_CH4."
      },
      {
        "number": "46",
        "name": "PE15",
        "type": "bidirectional",
        "description": "GPIO PE15, standard 3.3 V I/O (TC); alternate function TIM1_BKIN."
      },
      {
        "number": "47",
        "name": "PB10",
        "type": "bidirectional",
        "description": "GPIO PB10, standard 3.3 V I/O (TC) with fail-safe; alternates I2C2_SCL, USART3_TX, TIM2_CH3."
      },
      {
        "number": "48",
        "name": "PB11",
        "type": "bidirectional",
        "description": "GPIO PB11, standard 3.3 V I/O (TC); alternates I2C2_SDA, USART3_RX, TIM2_CH4."
      },
      {
        "number": "49",
        "name": "VSS_1",
        "type": "power_in",
        "description": "Digital ground pin 1."
      },
      {
        "number": "50",
        "name": "VDD_1",
        "type": "power_in",
        "description": "Digital supply for I/O and internal regulator, 1.8 V to 3.6 V."
      },
      {
        "number": "51",
        "name": "PB12",
        "type": "bidirectional",
        "description": "GPIO PB12, standard 3.3 V I/O (TC); alternates SPI2_NSS, I2S2_WS, I2C2_SMBA, USART3_CK, TIM1_BKIN."
      },
      {
        "number": "52",
        "name": "PB13",
        "type": "bidirectional",
        "description": "GPIO PB13, standard 3.3 V I/O (TC); alternates SPI2_SCK, I2S2_CK, USART3_CTS, TIM1_CH1N, UART5_TX."
      },
      {
        "number": "53",
        "name": "PB14",
        "type": "bidirectional",
        "description": "GPIO PB14, standard 3.3 V I/O (TC); alternates SPI2_MISO, TIM1_CH2N, USART3_RTS, UART5_RX."
      },
      {
        "number": "54",
        "name": "PB15",
        "type": "bidirectional",
        "description": "GPIO PB15, standard 3.3 V I/O (TC); alternates SPI2_MOSI, I2S2_SD, TIM1_CH3N."
      },
      {
        "number": "55",
        "name": "PD8",
        "type": "bidirectional",
        "description": "GPIO PD8, standard 3.3 V I/O (TC); alternates USART3_TX, SPI3_NSS, I2S3_WS, CAN1_RX."
      },
      {
        "number": "56",
        "name": "PD9",
        "type": "bidirectional",
        "description": "GPIO PD9, standard 3.3 V I/O (TC); alternates USART3_RX, SPI3_SCK, I2S3_CK, CAN1_TX."
      },
      {
        "number": "57",
        "name": "PD10",
        "type": "bidirectional",
        "description": "GPIO PD10, standard 3.3 V I/O (TC); alternate function USART3_CK."
      },
      {
        "number": "58",
        "name": "PD11",
        "type": "bidirectional",
        "description": "GPIO PD11, standard 3.3 V I/O (TC); alternates USART3_CTS, SPI3_MISO."
      },
      {
        "number": "59",
        "name": "PD12",
        "type": "bidirectional",
        "description": "GPIO PD12, standard 3.3 V I/O (TC); alternates TIM4_CH1, USART3_RTS, SPI3_MOSI, I2S3_SD."
      },
      {
        "number": "60",
        "name": "PD13",
        "type": "bidirectional",
        "description": "GPIO PD13, standard 3.3 V I/O (TC); alternate function TIM4_CH2."
      },
      {
        "number": "61",
        "name": "PD14",
        "type": "bidirectional",
        "description": "GPIO PD14, standard 3.3 V I/O (TC); alternates TIM4_CH3, I2C4_SCL, TIM8_CH1."
      },
      {
        "number": "62",
        "name": "PD15",
        "type": "bidirectional",
        "description": "GPIO PD15, 5 V tolerant (FT) with fail-safe; alternates TIM4_CH4, I2C4_SDA, TIM8_CH2."
      },
      {
        "number": "63",
        "name": "PC6",
        "type": "bidirectional",
        "description": "GPIO PC6, standard 3.3 V I/O (TC) with fail-safe; alternates I2S2_MCK, TIM8_CH1, SDIO_DAT6, I2C4_SCL, TIM3_CH1, SPI2_NSS, I2S2_WS, USART2_CTS."
      },
      {
        "number": "64",
        "name": "PC7",
        "type": "bidirectional",
        "description": "GPIO PC7, standard 3.3 V I/O (TC) with fail-safe; alternates I2S3_MCK, TIM8_CH2, SDIO_DAT7, I2C4_SDA, TIM3_CH2, SPI2_SCK, I2S2_CK, USART2_RTS."
      },
      {
        "number": "65",
        "name": "PC8",
        "type": "bidirectional",
        "description": "GPIO PC8, standard 3.3 V I/O (TC) with fail-safe; alternates TIM8_CH3, SDIO_DAT0, TIM3_CH3, SPI2_MISO, USART2_TX."
      },
      {
        "number": "66",
        "name": "PC9",
        "type": "bidirectional",
        "description": "GPIO PC9, standard 3.3 V I/O (TC) with fail-safe; alternates TIM8_CH4, SDIO_DAT1, TIM3_CH4, SPI2_MOSI, I2S2_SD, USART2_RX."
      },
      {
        "number": "67",
        "name": "PA8",
        "type": "bidirectional",
        "description": "GPIO PA8, 5 V tolerant (FT) with fail-safe; alternates USART1_CK, TIM1_CH1, MCO."
      },
      {
        "number": "68",
        "name": "PA9",
        "type": "bidirectional",
        "description": "GPIO PA9, 5 V tolerant (FT) with fail-safe; alternates USART1_TX, TIM1_CH2, I2C4_SCL."
      },
      {
        "number": "69",
        "name": "PA10",
        "type": "bidirectional",
        "description": "GPIO PA10, 5 V tolerant (FT) with fail-safe; alternates USART1_RX, TIM1_CH3, I2C4_SDA."
      },
      {
        "number": "70",
        "name": "PA11",
        "type": "bidirectional",
        "description": "GPIO PA11, 5 V tolerant (FT) with fail-safe; alternates USART1_CTS, USBDM, CAN1_RX, TIM1_CH4."
      },
      {
        "number": "71",
        "name": "PA12",
        "type": "bidirectional",
        "description": "GPIO PA12, 5 V tolerant (FT) with fail-safe; alternates USART1_RTS, USBDP, CAN1_TX, TIM1_ETR."
      },
      {
        "number": "72",
        "name": "PA13",
        "type": "bidirectional",
        "description": "GPIO PA13, 5 V tolerant (FT) with fail-safe; default function JTMS-SWDIO (SWJ debug), alternate UART4_TX."
      },
      {
        "number": "73",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected."
      },
      {
        "number": "74",
        "name": "VSS_2",
        "type": "power_in",
        "description": "Digital ground pin 2."
      },
      {
        "number": "75",
        "name": "VDD_2",
        "type": "power_in",
        "description": "Digital supply for I/O and internal regulator, 1.8 V to 3.6 V."
      },
      {
        "number": "76",
        "name": "PA14",
        "type": "bidirectional",
        "description": "GPIO PA14, 5 V tolerant (FT) with fail-safe; default function JTCK-SWCLK (SWJ debug), alternate UART4_RX."
      },
      {
        "number": "77",
        "name": "PA15",
        "type": "bidirectional",
        "description": "GPIO PA15, 5 V tolerant (FT) with fail-safe; default function JTDI, alternates include SPI1_NSS, USART2_CTS, TIM8_CH1N, TIM2_CH1_ETR."
      },
      {
        "number": "78",
        "name": "PC10",
        "type": "bidirectional",
        "description": "GPIO PC10, standard 3.3 V I/O (TC) with fail-safe; alternates UART4_TX, SDIO_DAT2, USART3_TX, SPI3_SCK, I2S3_CK."
      },
      {
        "number": "79",
        "name": "PC11",
        "type": "bidirectional",
        "description": "GPIO PC11, standard 3.3 V I/O (TC) with fail-safe; alternates UART4_RX, SDIO_DAT3, USART3_RX, SPI3_MISO."
      },
      {
        "number": "80",
        "name": "PC12",
        "type": "bidirectional",
        "description": "GPIO PC12, standard 3.3 V I/O (TC) with fail-safe; alternates UART5_TX, SDIO_CLK, USART3_CK, SPI3_MOSI, I2S3_SD, TIM8_CH2N."
      },
      {
        "number": "81",
        "name": "PD0",
        "type": "bidirectional",
        "description": "GPIO PD0 (fixed function pin on LQFP100), 5 V tolerant (FT) with fail-safe; alternates CAN1_RX, UART4_TX."
      },
      {
        "number": "82",
        "name": "PD1",
        "type": "bidirectional",
        "description": "GPIO PD1 (fixed function pin on LQFP100), 5 V tolerant (FT) with fail-safe; alternates CAN1_TX, UART4_RX."
      },
      {
        "number": "83",
        "name": "PD2",
        "type": "bidirectional",
        "description": "GPIO PD2, standard 3.3 V I/O (TC) with fail-safe; alternates TIM3_ETR, UART5_RX, SDIO_CMD, SPI3_NSS, I2S3_WS, TIM8_CH3N."
      },
      {
        "number": "84",
        "name": "PD3",
        "type": "bidirectional",
        "description": "GPIO PD3, 5 V tolerant (FT) with fail-safe; alternate function USART2_CTS."
      },
      {
        "number": "85",
        "name": "PD4",
        "type": "bidirectional",
        "description": "GPIO PD4, standard 3.3 V I/O (TC) with fail-safe; alternate function USART2_RTS."
      },
      {
        "number": "86",
        "name": "PD5",
        "type": "bidirectional",
        "description": "GPIO PD5, standard 3.3 V I/O (TC) with fail-safe; alternate function USART2_TX."
      },
      {
        "number": "87",
        "name": "PD6",
        "type": "bidirectional",
        "description": "GPIO PD6, standard 3.3 V I/O (TC) with fail-safe; alternate function USART2_RX."
      },
      {
        "number": "88",
        "name": "PD7",
        "type": "bidirectional",
        "description": "GPIO PD7, standard 3.3 V I/O (TC) with fail-safe; alternate function USART2_CK."
      },
      {
        "number": "89",
        "name": "PB3",
        "type": "bidirectional",
        "description": "GPIO PB3, 5 V tolerant (FT) with fail-safe; default function JTDO/TRACESWO (SWJ debug); alternates SPI3_SCK, I2S3_CK, TIM2_CH2, SPI1_SCK, USART2_RTS, TIM8_BKIN."
      },
      {
        "number": "90",
        "name": "PB4",
        "type": "bidirectional",
        "description": "GPIO PB4, 5 V tolerant (FT) with fail-safe; default function NJTRST (SWJ debug); alternates SPI3_MISO, TIM3_CH1, SPI1_MISO, USART2_TX, TIM8_ETR."
      },
      {
        "number": "91",
        "name": "PB5",
        "type": "bidirectional",
        "description": "GPIO PB5, 5 V tolerant (FT) with fail-safe; alternates I2C1_SMBA, SPI3_MOSI, I2S3_SD, TIM3_CH2, SPI1_MOSI, USART2_RX, TIM1_BKIN."
      },
      {
        "number": "92",
        "name": "PB6",
        "type": "bidirectional",
        "description": "GPIO PB6, standard 3.3 V I/O (TC) with fail-safe; alternates I2C1_SCL, TIM4_CH1, USART1_TX."
      },
      {
        "number": "93",
        "name": "PB7",
        "type": "bidirectional",
        "description": "GPIO PB7, standard 3.3 V I/O (TC) with fail-safe; alternates I2C1_SDA, TIM4_CH2, USART1_RX."
      },
      {
        "number": "94",
        "name": "BOOT0",
        "type": "input",
        "description": "Boot mode select input (BOOT0 and BOOT1 are inputs with pull-down, selecting flash, system memory or SRAM boot)."
      },
      {
        "number": "95",
        "name": "PB8",
        "type": "bidirectional",
        "description": "GPIO PB8, standard 3.3 V I/O (TC) with fail-safe; alternates TIM4_CH3, SDIO_DAT4, I2C1_SCL, CAN1_RX, UART5_TX."
      },
      {
        "number": "96",
        "name": "PB9",
        "type": "bidirectional",
        "description": "GPIO PB9, standard 3.3 V I/O (TC) with fail-safe; alternates TIM4_CH4, SDIO_DAT5, I2C1_SDA, CAN1_TX, UART5_RX."
      },
      {
        "number": "97",
        "name": "PE0",
        "type": "bidirectional",
        "description": "GPIO PE0, 5 V tolerant (FT) with fail-safe; alternate function TIM4_ETR."
      },
      {
        "number": "98",
        "name": "PE1",
        "type": "bidirectional",
        "description": "GPIO PE1, 5 V tolerant (FT) with fail-safe; no alternate function listed."
      },
      {
        "number": "99",
        "name": "VSS_3",
        "type": "power_in",
        "description": "Digital ground pin 3."
      },
      {
        "number": "100",
        "name": "VDD_3",
        "type": "power_in",
        "description": "Digital supply for I/O and internal regulator, 1.8 V to 3.6 V."
      }
    ],
    "provenance": {
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      "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: Pin 73 is printed as 'Not connected' in Table 3-1 and labeled NC in Figure 3-3; typed as unconnected; PC13, PC14 and PC15 are powered through a power switch limited to 3 mA total and, as outputs, are li; Pin types for GPIO and NRST are printed as I/O in the datasheet and mapped to bidirectional; BOOT0, ",
          "1/100 pins cited to the wrong page (name found elsewhere): ['73:NC@p34']"
        ],
        "pages_sent": 63,
        "cost_usd": 0.3407,
        "at": "2026-10-20T23:36:17"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8757135483187281920",
        "pages": 76,
        "sha256": "dbeae2e3a5d0603f",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 100,
        "described": 100,
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        "refuses_to_fabricate": true
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    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
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    "models_3d": [
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
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      {
        "file": "n32g451vcl7-etched.step",
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      "Package": "LQFP-100(14x14)",
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          "name": "TIM1/8 timer external clock frequency",
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        {
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        {
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