STM32L476RGT3

{
  "slug": "stm32l476rgt3",
  "version": "0.1.0",
  "type": "component",
  "description": "STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-64(10x10). Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "embedded processors & controllers",
    "stm32l476rgt3",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "stm32l476rgt3.kicad_sym",
    "stm32l476rgt3.kicad_mod",
    "stm32l476rgt3.glb",
    "stm32l476rgt3.step",
    "stm32l476rgt3.lbr",
    "docs/hero.png",
    "docs/stm32l476rgt3-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "stm32l476rgt3-hero.glb",
    "stm32l476rgt3-hero.overlay.json"
  ],
  "component": {
    "mpn": "STM32L476RGT3",
    "manufacturer": "STMicroelectronics",
    "package": "LQFP-64(10x10)",
    "pin_count": 64,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588923474455252992",
    "parts": {
      "symbol": "stm32l476rgt3.kicad_sym",
      "footprint": "stm32l476rgt3.kicad_mod",
      "model_3d": "stm32l476rgt3-hero.glb",
      "model_3d_plain": "stm32l476rgt3.glb",
      "model_3d_step": "stm32l476rgt3-etched.step",
      "model_3d_step_plain": "stm32l476rgt3.step",
      "lbr": "stm32l476rgt3.lbr"
    },
    "distributor_links": {
      "lcsc": "C1337443",
      "digikey": "497-17992-ND",
      "mouser": "511-STM32L476RGT3"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T21:42:50Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "497-17992-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "511-STM32L476RGT3",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VBAT",
        "type": "power_in",
        "description": "Backup-domain supply for the RTC and 32x32-bit backup registers, with a backup operating voltage of 1.55 V to 3.6 V."
      },
      {
        "number": "2",
        "name": "PC13",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO also used for RTC tamper/WKUP2; it is supplied through the power switch, which limits it to 3 mA, so output speed must not exceed 2 MHz at 30 pF and it must not be used as a current source."
      },
      {
        "number": "3",
        "name": "PC14-OSC32_IN (PC14)",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO that doubles as the 32 kHz LSE oscillator input OSC32_IN, with the same 3 mA power-switch limit as PC13."
      },
      {
        "number": "4",
        "name": "PC15-OSC32_OUT (PC15)",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO that doubles as the 32 kHz LSE oscillator output OSC32_OUT, with the same 3 mA power-switch limit as PC13."
      },
      {
        "number": "5",
        "name": "PH0-OSC_IN (PH0)",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO that doubles as the HSE oscillator input OSC_IN."
      },
      {
        "number": "6",
        "name": "PH1-OSC_OUT (PH1)",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO that doubles as the HSE oscillator output OSC_OUT."
      },
      {
        "number": "7",
        "name": "NRST",
        "type": "bidirectional",
        "description": "Bidirectional active-low reset pin with an embedded weak pull-up resistor."
      },
      {
        "number": "8",
        "name": "PC0",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT_fla: Fm+ capable, LCD function supplied by VLCD, analog switch supplied by VDDA) with ADC123_IN1 input and LPUART1_RX, I2C3_SCL and LPTIM1_IN1 alternate functions."
      },
      {
        "number": "9",
        "name": "PC1",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT_fla: Fm+ capable, LCD function supplied by VLCD, analog switch supplied by VDDA) with ADC123_IN2 input and LPUART1_TX, I2C3_SDA and LPTIM1_OUT alternate functions."
      },
      {
        "number": "10",
        "name": "PC2",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT_la: LCD function supplied by VLCD, analog switch supplied by VDDA) with ADC123_IN3 input and SPI2_MISO, LPTIM1_IN2 and LCD_SEG20 alternate functions."
      },
      {
        "number": "11",
        "name": "PC3",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT_a: analog switch supplied by VDDA) with ADC123_IN4 input and SPI2_MOSI, LPTIM1_ETR and LCD_VLCD alternate functions."
      },
      {
        "number": "12",
        "name": "VSSA/VREF-",
        "type": "power_in",
        "description": "Analog ground pin that also serves as the negative ADC reference VREF-, which equals VSSA."
      },
      {
        "number": "13",
        "name": "VDDA/VREF+",
        "type": "power_in",
        "description": "Analog supply pin, 1.62 V to 3.6 V when the ADC or COMP is used, that also serves as the positive ADC reference VREF+."
      },
      {
        "number": "14",
        "name": "PA0",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT_a) with ADC12_IN5, OPAMP1_VINP and RTC_TAMP2/WKUP1 functions, plus TIM2_CH1, USART2_CTS and UART4_TX alternate functions."
      },
      {
        "number": "15",
        "name": "PA1",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT_la) with ADC12_IN6 and OPAMP1_VINM functions, plus TIM2_CH2, USART2_RTS_DE and UART4_RX alternate functions."
      },
      {
        "number": "16",
        "name": "PA2",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT_la) with ADC12_IN7 and WKUP4/LSCO functions, plus TIM2_CH3, USART2_TX and SAI2_EXTCLK alternate functions."
      },
      {
        "number": "17",
        "name": "PA3",
        "type": "bidirectional",
        "description": "3.6 V-tolerant I/O (TT_la) with ADC12_IN8 and OPAMP1_VOUT functions, plus TIM2_CH4, USART2_RX and TIM15_CH2 alternate functions."
      },
      {
        "number": "18",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin that must be connected to the external ground within the permitted range."
      },
      {
        "number": "19",
        "name": "VDD",
        "type": "power_in",
        "description": "Main digital and I/O supply pin, 1.71 V to 3.6 V."
      },
      {
        "number": "20",
        "name": "PA4",
        "type": "bidirectional",
        "description": "3.6 V-tolerant I/O (TT_a) with ADC12_IN9 and DAC1_OUT1 functions, plus SPI1_NSS, SPI3_NSS, USART2_CK and LPTIM2_OUT alternate functions."
      },
      {
        "number": "21",
        "name": "PA5",
        "type": "bidirectional",
        "description": "3.6 V-tolerant I/O (TT_a) with ADC12_IN10 and DAC1_OUT2 functions, plus TIM2_CH1, TIM2_ETR, SPI1_SCK and LPTIM2_ETR alternate functions."
      },
      {
        "number": "22",
        "name": "PA6",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT_la) with ADC12_IN11 and OPAMP2_VINP functions, plus TIM1_BKIN, TIM3_CH1, SPI1_MISO, USART3_CTS and QUADSPI_BK1_IO3 alternate functions."
      },
      {
        "number": "23",
        "name": "PA7",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT_la) with ADC12_IN12 and OPAMP2_VINM functions, plus TIM1_CH1N, TIM3_CH2, SPI1_MOSI and QUADSPI_BK1_IO2 alternate functions."
      },
      {
        "number": "24",
        "name": "PC4",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT_la) with ADC12_IN13 and COMP1_INM functions, plus USART3_TX and LCD_SEG22 alternate functions."
      },
      {
        "number": "25",
        "name": "PC5",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT_la) with ADC12_IN14, COMP1_INP and WKUP5 functions, plus USART3_RX and LCD_SEG23 alternate functions."
      },
      {
        "number": "26",
        "name": "PB0",
        "type": "bidirectional",
        "description": "3.6 V-tolerant I/O (TT_la) with ADC12_IN15 and OPAMP2_VOUT functions, plus TIM1_CH2N, TIM3_CH3, USART3_CK and QUADSPI_BK1_IO1 alternate functions."
      },
      {
        "number": "27",
        "name": "PB1",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT_la) with ADC12_IN16 and COMP1_INM functions, plus TIM1_CH3N, TIM3_CH4, DFSDM1_DATIN0, USART3_RTS_DE and QUADSPI_BK1_IO0 alternate functions."
      },
      {
        "number": "28",
        "name": "PB2",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT_a) with COMP1_INP function, plus RTC_OUT, LPTIM1_OUT, I2C3_SMBA and DFSDM1_CKIN0 alternate functions."
      },
      {
        "number": "29",
        "name": "PB10",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT_fl: Fm+ capable, LCD function supplied by VLCD) with TIM2_CH3, I2C2_SCL, SPI2_SCK, USART3_TX, LPUART1_RX and QUADSPI_CLK alternate functions."
      },
      {
        "number": "30",
        "name": "PB11",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT_fl: Fm+ capable, LCD function supplied by VLCD) with TIM2_CH4, I2C2_SDA, USART3_RX, LPUART1_TX and QUADSPI_NCS alternate functions."
      },
      {
        "number": "31",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin that must be connected to the external ground within the permitted range."
      },
      {
        "number": "32",
        "name": "VDD",
        "type": "power_in",
        "description": "Main digital and I/O supply pin, 1.71 V to 3.6 V."
      },
      {
        "number": "33",
        "name": "PB12",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT_l, LCD function supplied by VLCD) with TIM1_BKIN, I2C2_SMBA, SPI2_NSS, USART3_CK and LPUART1_RTS_DE alternate functions."
      },
      {
        "number": "34",
        "name": "PB13",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT_fl: Fm+ capable, LCD function supplied by VLCD) with TIM1_CH1N, I2C2_SCL, SPI2_SCK, USART3_CTS and LPUART1_CTS alternate functions."
      },
      {
        "number": "35",
        "name": "PB14",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT_fl: Fm+ capable, LCD function supplied by VLCD) with TIM1_CH2N, I2C2_SDA, SPI2_MISO, USART3_RTS_DE and TSC_G1_IO3 alternate functions."
      },
      {
        "number": "36",
        "name": "PB15",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT_l, LCD function supplied by VLCD) with RTC_REFIN, TIM1_CH3N, SPI2_MOSI and DFSDM1_CKIN2 alternate functions."
      },
      {
        "number": "37",
        "name": "PC6",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT_l, LCD function supplied by VLCD) with TIM3_CH1, TIM8_CH1, DFSDM1_CKIN3, SDMMC1_D6 and SAI2_MCLK_A alternate functions."
      },
      {
        "number": "38",
        "name": "PC7",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT_l, LCD function supplied by VLCD) with TIM3_CH2, TIM8_CH2, DFSDM1_DATIN3, SDMMC1_D7 and SAI2_MCLK_B alternate functions."
      },
      {
        "number": "39",
        "name": "PC8",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT_l, LCD function supplied by VLCD) with TIM3_CH3, TIM8_CH3, TSC_G4_IO3 and SDMMC1_D0 alternate functions."
      },
      {
        "number": "40",
        "name": "PC9",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT_l, LCD function supplied by VLCD) with TIM3_CH4, TIM8_CH4, OTG_FS_NOE, SDMMC1_D1 and SAI2_EXTCLK alternate functions."
      },
      {
        "number": "41",
        "name": "PA8",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT_l, LCD function supplied by VLCD) with MCO, TIM1_CH1, USART1_CK, OTG_FS_SOF and LPTIM2_OUT alternate functions."
      },
      {
        "number": "42",
        "name": "PA9",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT_lu: LCD supplied by VLCD, USB function supplied by VDDUSB) with TIM1_CH2, USART1_TX, TIM15_BKIN and OTG_FS_VBUS functions."
      },
      {
        "number": "43",
        "name": "PA10",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT_lu: LCD supplied by VLCD, USB function supplied by VDDUSB) with TIM1_CH3, USART1_RX, OTG_FS_ID and TIM17_BKIN alternate functions."
      },
      {
        "number": "44",
        "name": "PA11",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT_u: USB function supplied by VDDUSB) with TIM1_CH4, TIM1_BKIN2, USART1_CTS, CAN1_RX and OTG_FS_DM alternate functions."
      },
      {
        "number": "45",
        "name": "PA12",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT_u: USB function supplied by VDDUSB) with TIM1_ETR, USART1_RTS_DE, CAN1_TX and OTG_FS_DP alternate functions."
      },
      {
        "number": "46",
        "name": "PA13 (JTMS-SWDIO)",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) that after reset is the JTMS-SWDIO debug function with an internal pull-up enabled, and also provides IR_OUT and OTG_FS_NOE alternate functions."
      },
      {
        "number": "47",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin that must be connected to the external ground within the permitted range."
      },
      {
        "number": "48",
        "name": "VDDUSB",
        "type": "power_in",
        "description": "USB supply pin, 3.0 V to 3.6 V when the USB is used."
      },
      {
        "number": "49",
        "name": "PA14 (JTCK-SWCLK)",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) that after reset is the JTCK-SWCLK debug function with an internal pull-down enabled."
      },
      {
        "number": "50",
        "name": "PA15 (JTDI)",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT_l) that after reset is the JTDI debug function with an internal pull-up enabled, and also provides TIM2_CH1, SPI1_NSS, SPI3_NSS and LCD_SEG17 alternate functions."
      },
      {
        "number": "51",
        "name": "PC10",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT_l, LCD function supplied by VLCD) with SPI3_SCK, USART3_TX, UART4_TX, TSC_G3_IO2, SDMMC1_D2 and SAI2_SCK_B alternate functions."
      },
      {
        "number": "52",
        "name": "PC11",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT_l, LCD function supplied by VLCD) with SPI3_MISO, USART3_RX, UART4_RX, TSC_G3_IO3, SDMMC1_D3 and SAI2_MCLK_B alternate functions."
      },
      {
        "number": "53",
        "name": "PC12",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT_l, LCD function supplied by VLCD) with SPI3_MOSI, USART3_CK, UART5_TX, TSC_G3_IO4, SDMMC1_CK and SAI2_SD_B alternate functions."
      },
      {
        "number": "54",
        "name": "PD2",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT_l, LCD function supplied by VLCD) with TIM3_ETR, USART3_RTS_DE, UART5_RX, TSC_SYNC and SDMMC1_CMD alternate functions."
      },
      {
        "number": "55",
        "name": "PB3 (JTDO-TRACESWO)",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT_la) that after reset is the JTDO-TRACESWO debug function, with TIM2_CH2, SPI1_SCK, SPI3_SCK, USART1_RTS_DE and SAI1_SCK_B alternate functions."
      },
      {
        "number": "56",
        "name": "PB4 (NJTRST)",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT_la) that after reset is the NJTRST debug function with an internal pull-up enabled, with TIM3_CH1, SPI1_MISO, SPI3_MISO, USART1_CTS and TIM17_BKIN alternate functions."
      },
      {
        "number": "57",
        "name": "PB5",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT_la) with LPTIM1_IN1, TIM3_CH2, I2C1_SMBA, SPI1_MOSI, SPI3_MOSI, USART1_CK and TIM16_BKIN alternate functions."
      },
      {
        "number": "58",
        "name": "PB6",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT_fa: Fm+ capable, analog switch supplied by VDDA) with COMP2_INP function, plus LPTIM1_ETR, TIM4_CH1, I2C1_SCL, USART1_TX and TIM16_CH1N alternate functions."
      },
      {
        "number": "59",
        "name": "PB7",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT_fla: Fm+ capable, LCD supplied by VLCD, analog switch supplied by VDDA) with COMP2_INM and PVD_IN functions, plus LPTIM1_IN2, TIM4_CH2, I2C1_SDA, USART1_RX and FMC_NL alternate functions."
      },
      {
        "number": "60",
        "name": "BOOT0",
        "type": "input",
        "description": "Dedicated BOOT0 boot-mode input whose voltage must stay between 0 V and 9 V."
      },
      {
        "number": "61",
        "name": "PB8",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT_fl: Fm+ capable, LCD function supplied by VLCD) with TIM4_CH3, I2C1_SCL, DFSDM1_DATIN6, CAN1_RX, SDMMC1_D4 and TIM16_CH1 alternate functions."
      },
      {
        "number": "62",
        "name": "PB9",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT_fl: Fm+ capable, LCD function supplied by VLCD) with IR_OUT, TIM4_CH4, I2C1_SDA, SPI2_NSS, CAN1_TX, SDMMC1_D5 and TIM17_CH1 alternate functions."
      },
      {
        "number": "63",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin that must be connected to the external ground within the permitted range."
      },
      {
        "number": "64",
        "name": "VDD",
        "type": "power_in",
        "description": "Main digital and I/O supply pin, 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: The LQFP64 column is taken from the standard (LDO, blank ordering option) variant. Table 16 also lis; The MPN suffix '3' is the temperature range code (-40 to 125 °C ambient, Table 23 / ordering scheme); The text extraction of the VSSA/VREF- row in Table 16 is garbled. Pin 12 was confirmed against Figur"
        ],
        "pages_sent": 101,
        "cost_usd": 0.451,
        "at": "2026-10-08T21:42:24"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588923474455252992",
        "pages": 270,
        "sha256": "241f8f908b7f839d",
        "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": "stm32l476rgt3.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": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "stm32l476rgt3-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": "3514f73b6dfc18cd68f9f1424ced0164badc110edad4aad3807de92d6af5cf61",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}