STM32L471VGT3

{
  "slug": "stm32l471vgt3",
  "version": "0.1.0",
  "type": "component",
  "description": "STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-100(14x14). Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "embedded processors & controllers",
    "stm32l471vgt3",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
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    "path": "docs/hero.png"
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  "component": {
    "mpn": "STM32L471VGT3",
    "manufacturer": "STMicroelectronics",
    "package": "LQFP-100(14x14)",
    "pin_count": 100,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588923851665248256",
    "parts": {
      "symbol": "stm32l471vgt3.kicad_sym",
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      "lbr": "stm32l471vgt3.lbr"
    },
    "distributor_links": {
      "lcsc": "C1341374",
      "digikey": "497-17990-ND",
      "mouser": "511-STM32L471VGT3"
    },
    "distributor_check": {
      "checked_at": "2026-10-07T21:52:23Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "497-17990-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "511-STM32L471VGT3",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "PE2",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); alternate functions include TRACECK, TIM3_ETR, TSC_G7_IO1, FMC_A23 and SAI1_MCLK_A."
      },
      {
        "number": "2",
        "name": "PE3",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); alternate functions include TRACED0, TIM3_CH1, TSC_G7_IO2, FMC_A19 and SAI1_SD_B."
      },
      {
        "number": "3",
        "name": "PE4",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); alternate functions include TRACED1, TIM3_CH2, DFSDM1_DATIN3, FMC_A20 and SAI1_FS_A."
      },
      {
        "number": "4",
        "name": "PE5",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); alternate functions include TRACED2, TIM3_CH3, DFSDM1_CKIN3, FMC_A21 and SAI1_SCK_A."
      },
      {
        "number": "5",
        "name": "PE6",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); alternate functions include TRACED3, TIM3_CH4, FMC_A22 and SAI1_SD_A; additional function RTC_TAMP3/WKUP3."
      },
      {
        "number": "6",
        "name": "VBAT",
        "type": "power_in",
        "description": "Backup domain supply for RTC and backup registers, 1.55 V to 3.6 V."
      },
      {
        "number": "7",
        "name": "PC13",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT), supplied through the power switch which sinks at most 3 mA, so output use is limited to 2 MHz with 30 pF and it must not drive LEDs as a current source; additional functions RTC_TAMP1/RTC_TS/RTC_OUT/WKUP2."
      },
      {
        "number": "8",
        "name": "PC14-OSC32_IN",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT), power-switch supplied with the same 3 mA and 2 MHz / 30 pF output limits as PC13; also the LSE oscillator input OSC32_IN."
      },
      {
        "number": "9",
        "name": "PC15-OSC32_OUT",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT), power-switch supplied with the same 3 mA and 2 MHz / 30 pF output limits as PC13; also the LSE oscillator output OSC32_OUT."
      },
      {
        "number": "10",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin for the digital supply domain."
      },
      {
        "number": "11",
        "name": "VDD",
        "type": "power_in",
        "description": "Standard digital supply, 1.71 V to 3.6 V."
      },
      {
        "number": "12",
        "name": "PH0-OSC_IN",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); also the HSE oscillator input OSC_IN."
      },
      {
        "number": "13",
        "name": "PH1-OSC_OUT",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); also the HSE oscillator output OSC_OUT."
      },
      {
        "number": "14",
        "name": "NRST",
        "type": "bidirectional",
        "description": "Bidirectional active-low reset pin with embedded weak pull-up resistor."
      },
      {
        "number": "15",
        "name": "PC0",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant with Fm+ capability and analog switch supplied by VDDA (FT_fa); alternate functions include LPTIM1_IN1, I2C3_SCL, LPUART1_RX and ADC123_IN1."
      },
      {
        "number": "16",
        "name": "PC1",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant with Fm+ capability and analog switch supplied by VDDA (FT_fa); alternate functions include LPTIM1_OUT, I2C3_SDA, LPUART1_TX and ADC123_IN2."
      },
      {
        "number": "17",
        "name": "PC2",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant with analog switch supplied by VDDA (FT_a); alternate functions include LPTIM1_IN2, SPI2_MISO, DFSDM1_CKOUT and ADC123_IN3."
      },
      {
        "number": "18",
        "name": "PC3",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant with analog switch supplied by VDDA (FT_a); alternate functions include LPTIM1_ETR, SPI2_MOSI, SAI1_SD_A, LPTIM2_ETR and ADC123_IN4."
      },
      {
        "number": "19",
        "name": "VSSA",
        "type": "power_in",
        "description": "Ground pin for the analog supply domain (ADC, DAC, OPAMP, COMP, VREF)."
      },
      {
        "number": "20",
        "name": "VREF-",
        "type": "power_in",
        "description": "Negative reference voltage for the ADC, tied to VSSA."
      },
      {
        "number": "21",
        "name": "VREF+",
        "type": "power_in",
        "description": "Positive ADC reference voltage input; datasheet requires VDDA ≥ 2 V when VREF+ is at its maximum, otherwise VREF+ may be at most VDDA; also available as VREFBUF_OUT."
      },
      {
        "number": "22",
        "name": "VDDA",
        "type": "power_in",
        "description": "Analog supply, 1.62 V to 3.6 V for ADC or COMP and 1.8 V minimum for DAC or OPAMP; must be decoupled to VSSA."
      },
      {
        "number": "23",
        "name": "PA0",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant with analog switch supplied by VDDA (FT_a); alternate functions include TIM2_CH1, TIM8_ETR, USART2_CTS and UART4_TX, additional functions OPAMP1_VINP, ADC12_IN5 and RTC_TAMP2/WKUP1."
      },
      {
        "number": "24",
        "name": "PA1",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant with analog switch supplied by VDDA (FT_a); alternate functions include TIM2_CH2, USART2_RTS_DE and UART4_RX, additional functions OPAMP1_VINM and ADC12_IN6."
      },
      {
        "number": "25",
        "name": "PA2",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant with analog switch supplied by VDDA (FT_a); alternate functions include TIM2_CH3, USART2_TX and SAI2_EXTCLK, additional functions ADC12_IN7 and WKUP4/LSCO."
      },
      {
        "number": "26",
        "name": "PA3",
        "type": "bidirectional",
        "description": "I/O, 3.6 V tolerant (TT_a) with analog switch supplied by VDDA; alternate functions include TIM2_CH4, TIM5_CH4, USART2_RX and TIM15_CH2, additional functions OPAMP1_VOUT and ADC12_IN8."
      },
      {
        "number": "27",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin for the digital supply domain."
      },
      {
        "number": "28",
        "name": "VDD",
        "type": "power_in",
        "description": "Standard digital supply, 1.71 V to 3.6 V."
      },
      {
        "number": "29",
        "name": "PA4",
        "type": "bidirectional",
        "description": "I/O, 3.6 V tolerant (TT_a) with analog switch supplied by VDDA; alternate functions include SPI1_NSS, SPI3_NSS, USART2_CK and LPTIM2_OUT, additional functions ADC12_IN9 and DAC1_OUT1."
      },
      {
        "number": "30",
        "name": "PA5",
        "type": "bidirectional",
        "description": "I/O, 3.6 V tolerant (TT_a) with analog switch supplied by VDDA; alternate functions include TIM2_CH1, TIM2_ETR, TIM8_CH1N, SPI1_SCK and LPTIM2_ETR, additional functions ADC12_IN10 and DAC1_OUT2."
      },
      {
        "number": "31",
        "name": "PA6",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant with analog switch supplied by VDDA (FT_a); alternate functions include TIM1_BKIN, TIM3_CH1, SPI1_MISO, USART3_CTS and QUADSPI_BK1_IO3, additional functions OPAMP2_VINP and ADC12_IN11."
      },
      {
        "number": "32",
        "name": "PA7",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant with analog switch supplied by VDDA (FT_a); alternate functions include TIM1_CH1N, TIM3_CH2, SPI1_MOSI, QUADSPI_BK1_IO2 and TIM17_CH1, additional functions OPAMP2_VINM and ADC12_IN12."
      },
      {
        "number": "33",
        "name": "PC4",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant with analog switch supplied by VDDA (FT_a); alternate function USART3_TX, additional functions COMP1_INM and ADC12_IN13."
      },
      {
        "number": "34",
        "name": "PC5",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant with analog switch supplied by VDDA (FT_a); alternate function USART3_RX, additional functions COMP1_INP, ADC12_IN14 and WKUP5."
      },
      {
        "number": "35",
        "name": "PB0",
        "type": "bidirectional",
        "description": "I/O, 3.6 V tolerant (TT_a) with analog switch supplied by VDDA; alternate functions include TIM1_CH2N, TIM3_CH3, USART3_CK, QUADSPI_BK1_IO1 and COMP1_OUT, additional functions OPAMP2_VOUT and ADC12_IN15."
      },
      {
        "number": "36",
        "name": "PB1",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant with analog switch supplied by VDDA (FT_a); alternate functions include TIM1_CH3N, TIM3_CH4, DFSDM1_DATIN0, USART3_RTS_DE and LPTIM2_IN1, additional functions COMP1_INM and ADC12_IN16."
      },
      {
        "number": "37",
        "name": "PB2",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant with analog switch supplied by VDDA (FT_a); alternate functions include RTC_OUT, LPTIM1_OUT, I2C3_SMBA and DFSDM1_CKIN0, additional function COMP1_INP."
      },
      {
        "number": "38",
        "name": "PE7",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); alternate functions include TIM1_ETR, DFSDM1_DATIN2, FMC_D4 and SAI1_SD_B."
      },
      {
        "number": "39",
        "name": "PE8",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); alternate functions include TIM1_CH1N, DFSDM1_CKIN2, FMC_D5 and SAI1_SCK_B."
      },
      {
        "number": "40",
        "name": "PE9",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); alternate functions include TIM1_CH1, DFSDM1_CKOUT, FMC_D6 and SAI1_FS_B."
      },
      {
        "number": "41",
        "name": "PE10",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); alternate functions include TIM1_CH2N, DFSDM1_DATIN4, TSC_G5_IO1, QUADSPI_CLK, FMC_D7 and SAI1_MCLK_B."
      },
      {
        "number": "42",
        "name": "PE11",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); alternate functions include TIM1_CH2, DFSDM1_CKIN4, TSC_G5_IO2, QUADSPI_NCS and FMC_D8."
      },
      {
        "number": "43",
        "name": "PE12",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); alternate functions include TIM1_CH3N, SPI1_NSS, DFSDM1_DATIN5, TSC_G5_IO3, QUADSPI_BK1_IO0 and FMC_D9."
      },
      {
        "number": "44",
        "name": "PE13",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); alternate functions include TIM1_CH3, SPI1_SCK, DFSDM1_CKIN5, TSC_G5_IO4, QUADSPI_BK1_IO1 and FMC_D10."
      },
      {
        "number": "45",
        "name": "PE14",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); alternate functions include TIM1_CH4, TIM1_BKIN2, SPI1_MISO, QUADSPI_BK1_IO2 and FMC_D11."
      },
      {
        "number": "46",
        "name": "PE15",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); alternate functions include TIM1_BKIN, SPI1_MOSI, QUADSPI_BK1_IO3 and FMC_D12."
      },
      {
        "number": "47",
        "name": "PB10",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant with Fm+ capability (FT_f); alternate functions include TIM2_CH3, I2C2_SCL, SPI2_SCK, USART3_TX, LPUART1_RX and QUADSPI_CLK."
      },
      {
        "number": "48",
        "name": "PB11",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant with Fm+ capability (FT_f); alternate functions include TIM2_CH4, I2C2_SDA, USART3_RX, LPUART1_TX and QUADSPI_NCS."
      },
      {
        "number": "49",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin for the digital supply domain."
      },
      {
        "number": "50",
        "name": "VDD",
        "type": "power_in",
        "description": "Standard digital supply, 1.71 V to 3.6 V."
      },
      {
        "number": "51",
        "name": "PB12",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); alternate functions include TIM1_BKIN, I2C2_SMBA, SPI2_NSS, USART3_CK, LPUART1_RTS_DE and SWPMI1_IO."
      },
      {
        "number": "52",
        "name": "PB13",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant with Fm+ capability (FT_f); alternate functions include TIM1_CH1N, I2C2_SCL, SPI2_SCK, USART3_CTS, LPUART1_CTS and SWPMI1_TX."
      },
      {
        "number": "53",
        "name": "PB14",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant with Fm+ capability (FT_f); alternate functions include TIM1_CH2N, I2C2_SDA, SPI2_MISO, USART3_RTS_DE and SWPMI1_RX."
      },
      {
        "number": "54",
        "name": "PB15",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); alternate functions include RTC_REFIN, TIM1_CH3N, SPI2_MOSI, TSC_G1_IO4 and SWPMI1_SUSPEND."
      },
      {
        "number": "55",
        "name": "PD8",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); alternate functions include USART3_TX and FMC_D13."
      },
      {
        "number": "56",
        "name": "PD9",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); alternate functions include USART3_RX, FMC_D14 and SAI2_MCLK_A."
      },
      {
        "number": "57",
        "name": "PD10",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); alternate functions include USART3_CK, TSC_G6_IO1, FMC_D15 and SAI2_SCK_A."
      },
      {
        "number": "58",
        "name": "PD11",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); alternate functions include USART3_CTS, TSC_G6_IO2, FMC_A16, SAI2_SD_A and LPTIM2_ETR."
      },
      {
        "number": "59",
        "name": "PD12",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); alternate functions include TIM4_CH1, USART3_RTS_DE, TSC_G6_IO3, FMC_A17 and LPTIM2_IN1."
      },
      {
        "number": "60",
        "name": "PD13",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); alternate functions include TIM4_CH2, TSC_G6_IO4, FMC_A18 and LPTIM2_OUT."
      },
      {
        "number": "61",
        "name": "PD14",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); alternate functions include TIM4_CH3, FMC_D0 and EVENTOUT."
      },
      {
        "number": "62",
        "name": "PD15",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); alternate functions include TIM4_CH4, FMC_D1 and EVENTOUT."
      },
      {
        "number": "63",
        "name": "PC6",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); alternate functions include TIM3_CH1, TIM8_CH1, DFSDM1_CKIN3, TSC_G4_IO1, SDMMC1_D6 and SAI2_MCLK_A."
      },
      {
        "number": "64",
        "name": "PC7",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); alternate functions include TIM3_CH2, TIM8_CH2, DFSDM1_DATIN3, TSC_G4_IO2, SDMMC1_D7 and SAI2_MCLK_B."
      },
      {
        "number": "65",
        "name": "PC8",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); alternate functions include TIM3_CH3, TIM8_CH3, TSC_G4_IO3 and SDMMC1_D0."
      },
      {
        "number": "66",
        "name": "PC9",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); alternate functions include TIM8_BKIN2, TIM3_CH4, TIM8_CH4, TSC_G4_IO4, SDMMC1_D1 and SAI2_EXTCLK."
      },
      {
        "number": "67",
        "name": "PA8",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); alternate functions include MCO, TIM1_CH1, USART1_CK and LPTIM2_OUT."
      },
      {
        "number": "68",
        "name": "PA9",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); alternate functions include TIM1_CH2, USART1_TX and TIM15_BKIN."
      },
      {
        "number": "69",
        "name": "PA10",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); alternate functions include TIM1_CH3, USART1_RX and TIM17_BKIN."
      },
      {
        "number": "70",
        "name": "PA11",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); alternate functions include TIM1_CH4, TIM1_BKIN2, USART1_CTS and CAN1_RX."
      },
      {
        "number": "71",
        "name": "PA12",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); alternate functions include TIM1_ETR, USART1_RTS_DE and CAN1_TX."
      },
      {
        "number": "72",
        "name": "PA13",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); JTMS-SWDIO debug function after reset with internal pull-up enabled, also IR_OUT."
      },
      {
        "number": "73",
        "name": "VDD",
        "type": "power_in",
        "description": "Standard digital supply, 1.71 V to 3.6 V."
      },
      {
        "number": "74",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin for the digital supply domain."
      },
      {
        "number": "75",
        "name": "VDD",
        "type": "power_in",
        "description": "Standard digital supply, 1.71 V to 3.6 V."
      },
      {
        "number": "76",
        "name": "PA14",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); JTCK-SWCLK debug function after reset with internal pull-down enabled."
      },
      {
        "number": "77",
        "name": "PA15",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); JTDI debug function after reset with internal pull-up enabled; also TIM2_CH1, TIM2_ETR, SPI1_NSS, SPI3_NSS and UART4_RTS_DE."
      },
      {
        "number": "78",
        "name": "PC10",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); alternate functions include SPI3_SCK, USART3_TX, UART4_TX, TSC_G3_IO2 and SDMMC1_D2."
      },
      {
        "number": "79",
        "name": "PC11",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); alternate functions include SPI3_MISO, USART3_RX, UART4_RX, TSC_G3_IO3 and SDMMC1_D3."
      },
      {
        "number": "80",
        "name": "PC12",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); alternate functions include SPI3_MOSI, USART3_CK, UART5_TX, TSC_G3_IO4 and SDMMC1_CK."
      },
      {
        "number": "81",
        "name": "PD0",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); alternate functions include SPI2_NSS, DFSDM1_DATIN7, CAN1_RX and FMC_D2."
      },
      {
        "number": "82",
        "name": "PD1",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); alternate functions include SPI2_SCK, DFSDM1_CKIN7, CAN1_TX and FMC_D3."
      },
      {
        "number": "83",
        "name": "PD2",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); alternate functions include TIM3_ETR, USART3_RTS_DE, UART5_RX, TSC_SYNC and SDMMC1_CMD."
      },
      {
        "number": "84",
        "name": "PD3",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); alternate functions include SPI2_MISO, DFSDM1_DATIN0, USART2_CTS and FMC_CLK."
      },
      {
        "number": "85",
        "name": "PD4",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); alternate functions include SPI2_MOSI, DFSDM1_CKIN0, USART2_RTS_DE and FMC_NOE."
      },
      {
        "number": "86",
        "name": "PD5",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); alternate functions include USART2_TX and FMC_NWE."
      },
      {
        "number": "87",
        "name": "PD6",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); alternate functions include DFSDM1_DATIN1, USART2_RX, FMC_NWAIT and SAI1_SD_A."
      },
      {
        "number": "88",
        "name": "PD7",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); alternate functions include DFSDM1_CKIN1, USART2_CK and FMC_NE1."
      },
      {
        "number": "89",
        "name": "PB3",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant with analog switch supplied by VDDA (FT_a); JTDO-TRACESWO debug function after reset, also TIM2_CH2, SPI1_SCK, SPI3_SCK and COMP2_INM."
      },
      {
        "number": "90",
        "name": "PB4",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant with analog switch supplied by VDDA (FT_a); NJTRST debug function after reset with internal pull-up enabled, also TIM3_CH1, SPI1_MISO, SPI3_MISO and COMP2_INP."
      },
      {
        "number": "91",
        "name": "PB5",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant with analog switch supplied by VDDA (FT_a); alternate functions include LPTIM1_IN1, TIM3_CH2, I2C1_SMBA, SPI1_MOSI and COMP2_OUT."
      },
      {
        "number": "92",
        "name": "PB6",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant with Fm+ capability and analog switch supplied by VDDA (FT_fa); alternate functions include LPTIM1_ETR, TIM4_CH1, I2C1_SCL, USART1_TX and additional COMP2_INP."
      },
      {
        "number": "93",
        "name": "PB7",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant with Fm+ capability and analog switch supplied by VDDA (FT_fa); alternate functions include LPTIM1_IN2, TIM4_CH2, I2C1_SDA, USART1_RX and FMC_NL; additional functions COMP2_INM and PVD_IN."
      },
      {
        "number": "94",
        "name": "BOOT0",
        "type": "input",
        "description": "Dedicated BOOT0 pin; input voltage range is VSS to 9.0 V."
      },
      {
        "number": "95",
        "name": "PB8",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant with Fm+ capability (FT_f); alternate functions include TIM4_CH3, I2C1_SCL, DFSDM1_DATIN6, CAN1_RX, SDMMC1_D4 and TIM16_CH1."
      },
      {
        "number": "96",
        "name": "PB9",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant with Fm+ capability (FT_f); alternate functions include IR_OUT, TIM4_CH4, I2C1_SDA, SPI2_NSS, CAN1_TX and SDMMC1_D5."
      },
      {
        "number": "97",
        "name": "PE0",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); alternate functions include TIM4_ETR, FMC_NBL0 and TIM16_CH1."
      },
      {
        "number": "98",
        "name": "PE1",
        "type": "bidirectional",
        "description": "I/O, 5 V tolerant (FT); alternate functions include FMC_NBL1 and TIM17_CH1."
      },
      {
        "number": "99",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin for the digital supply domain."
      },
      {
        "number": "100",
        "name": "VDD",
        "type": "power_in",
        "description": "Standard digital supply, 1.71 V to 3.6 V."
      }
    ],
    "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: PC13, PC14 and PC15 are supplied through the power switch, which sinks only 3 mA; output use is limi; After reset these pins are JTAG/SW debug alternate functions with internal pull-ups (PA13, PA15, PB4; Pin types are mapped to KiCad ERC classes by judgment: the datasheet gives I/O structures (FT, TT, R"
        ],
        "pages_sent": 77,
        "cost_usd": 0.4203,
        "at": "2026-10-07T21:51:49"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588923851665248256",
        "pages": 229,
        "sha256": "2a91fd04e0793619",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 100,
        "described": 100,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "stm32l471vgt3.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          16.0,
          16.0,
          1.5
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "51720097260ffba41c3062f85f67623721102fa535901c47cb555a1f444feeb3",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "stm32l471vgt3-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          16.0,
          16.0,
          1.5
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "8eefb46cb3260c1d12c68f544394048c2932927a6e5c87c39d743d0cbfefbcdb",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}