STM32L452RET6

{
  "schema_version": 1,
  "type": "component",
  "slug": "stm32l452ret6",
  "title": "STM32L452RET6",
  "brief": "STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-64(10x10). Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.",
  "version": "0.1.1",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "embedded processors & controllers",
    "stm32l452ret6",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "STM32L452RET6",
    "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/8588906265627648000",
    "parts": {
      "symbol": "stm32l452ret6.kicad_sym",
      "footprint": "stm32l452ret6.kicad_mod",
      "model_3d": "stm32l452ret6-etched.glb",
      "model_3d_plain": "stm32l452ret6.glb",
      "model_3d_step": "stm32l452ret6-etched.step",
      "model_3d_step_plain": "stm32l452ret6.step",
      "lbr": "stm32l452ret6.lbr"
    },
    "distributor_links": {
      "lcsc": "C1337123",
      "digikey": "497-17219-ND",
      "mouser": "511-STM32L452RET6"
    },
    "distributor_check": {
      "checked_at": "2026-09-29T14:37:25Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "497-17219-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "511-STM32L452RET6",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VBAT",
        "type": "power_in",
        "description": "Backup battery supply voltage domain, 1.55 V to 3.6 V"
      },
      {
        "number": "2",
        "name": "PC13",
        "type": "bidirectional",
        "description": "GPIO port C pin 13, 5V tolerant, RTC tamper/timestamp output and wakeup2 function"
      },
      {
        "number": "3",
        "name": "PC14-OSC32_IN (PC14)",
        "type": "bidirectional",
        "description": "GPIO port C pin 14, 32 kHz oscillator crystal input"
      },
      {
        "number": "4",
        "name": "PC15-OSC32_OUT (PC15)",
        "type": "bidirectional",
        "description": "GPIO port C pin 15, 32 kHz oscillator crystal output"
      },
      {
        "number": "5",
        "name": "PH0-OSC_IN (PH0)",
        "type": "bidirectional",
        "description": "GPIO port H pin 0, 4 to 48 MHz crystal oscillator input"
      },
      {
        "number": "6",
        "name": "PH1-OSC_OUT (PH1)",
        "type": "bidirectional",
        "description": "GPIO port H pin 1, 4 to 48 MHz crystal oscillator output"
      },
      {
        "number": "7",
        "name": "NRST",
        "type": "input",
        "description": "Active low reset pin with embedded weak pull-up resistor, 5V tolerant"
      },
      {
        "number": "8",
        "name": "PC0",
        "type": "bidirectional",
        "description": "GPIO port C pin 0, 5V tolerant analog switch, ADC1_IN1, LPUART1/I2C/LPTIM functions"
      },
      {
        "number": "9",
        "name": "PC1",
        "type": "bidirectional",
        "description": "GPIO port C pin 1, 5V tolerant analog switch, ADC1_IN2, LPUART1/I2C/LPTIM/trace functions"
      },
      {
        "number": "10",
        "name": "PC2",
        "type": "bidirectional",
        "description": "GPIO port C pin 2, 5V tolerant analog switch, ADC1_IN3, SPI2/DFSDM/LPTIM functions"
      },
      {
        "number": "11",
        "name": "PC3",
        "type": "bidirectional",
        "description": "GPIO port C pin 3, 5V tolerant analog switch, ADC1_IN4, SPI2/SAI/LPTIM functions"
      },
      {
        "number": "12",
        "name": "VSSA/VREF-",
        "type": "power_in",
        "description": "Analog ground and negative reference voltage"
      },
      {
        "number": "13",
        "name": "VDDA/VREF+",
        "type": "power_in",
        "description": "Analog supply and positive reference voltage, 1.62 V to 3.6 V, VREFBUF_OUT capable"
      },
      {
        "number": "14",
        "name": "PA0",
        "type": "bidirectional",
        "description": "GPIO port A pin 0, 5V tolerant analog switch, ADC1_IN5/RTC_TAMP2/WKUP1, OPAMP1_VINP, COMP1_INM, TIM2/USART2/SAI/UART4 functions"
      },
      {
        "number": "15",
        "name": "PA1",
        "type": "bidirectional",
        "description": "GPIO port A pin 1, 5V tolerant analog switch, ADC1_IN6, OPAMP1_VINM, COMP1_INP, TIM2/I2C1/SPI1/UART4/TIM15 functions"
      },
      {
        "number": "16",
        "name": "PA2",
        "type": "bidirectional",
        "description": "GPIO port A pin 2, 5V tolerant analog switch, ADC1_IN7/WKUP4/LSCO, COMP2_INM, TIM2/USART2/LPUART1/QUADSPI/TIM15 functions"
      },
      {
        "number": "17",
        "name": "PA3",
        "type": "bidirectional",
        "description": "GPIO port A pin 3, 3.6V tolerant analog switch, ADC1_IN8, OPAMP1_VOUT, COMP2_INP, TIM2/USART2/LPUART1/QUADSPI/SAI/TIM15 functions"
      },
      {
        "number": "18",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin"
      },
      {
        "number": "19",
        "name": "VDD",
        "type": "power_in",
        "description": "Main supply voltage, 1.71 V to 3.6 V"
      },
      {
        "number": "20",
        "name": "PA4",
        "type": "bidirectional",
        "description": "GPIO port A pin 4, 3.6V tolerant analog switch, ADC1_IN9/DAC1_OUT1, COMP1_INM/COMP2_INM, SPI1/USART2/SAI/LPTIM2 functions"
      },
      {
        "number": "21",
        "name": "PA5",
        "type": "bidirectional",
        "description": "GPIO port A pin 5, 3.6V tolerant analog switch, ADC1_IN10, COMP1_INM/COMP2_INM, TIM2/SPI1/DFSDM/LPTIM2 functions"
      },
      {
        "number": "22",
        "name": "PA6",
        "type": "bidirectional",
        "description": "GPIO port A pin 6, 5V tolerant analog switch/Fm+ I2C, ADC1_IN11, COMP1_OUT, TIM1/TIM3/SPI1/USART3/LPUART1/QUADSPI/TIM16 functions"
      },
      {
        "number": "23",
        "name": "PA7",
        "type": "bidirectional",
        "description": "GPIO port A pin 7, 5V tolerant Fm+ I2C/analog switch, ADC1_IN12, COMP2_OUT, TIM1/TIM3/I2C3/SPI1/QUADSPI functions"
      },
      {
        "number": "24",
        "name": "PC4",
        "type": "bidirectional",
        "description": "GPIO port A pin 4, 5V tolerant analog switch, ADC1_IN13, COMP1_INM, USART3 function"
      },
      {
        "number": "25",
        "name": "PC5",
        "type": "bidirectional",
        "description": "GPIO port C pin 5, 5V tolerant analog switch, ADC1_IN14/WKUP5, COMP1_INP, USART3 function"
      },
      {
        "number": "26",
        "name": "PB0",
        "type": "bidirectional",
        "description": "GPIO port B pin 0, 5V tolerant analog switch, ADC1_IN15, COMP1_OUT/SAI/QUADSPI, TIM1/TIM3/SPI1/USART3 functions"
      },
      {
        "number": "27",
        "name": "PB1",
        "type": "bidirectional",
        "description": "GPIO port B pin 1, 5V tolerant analog switch, ADC1_IN16, COMP1_INM, TIM1/TIM3/DFSDM/USART3/LPUART1/LPTIM2 functions"
      },
      {
        "number": "28",
        "name": "PB2",
        "type": "bidirectional",
        "description": "GPIO port B pin 2, 5V tolerant analog switch, COMP1_INP, RTC_OUT, LPTIM1/I2C3/DFSDM functions"
      },
      {
        "number": "29",
        "name": "PB10",
        "type": "bidirectional",
        "description": "GPIO port B pin 10, 5V tolerant Fm+ I2C, COMP1_OUT, TIM2/I2C4/I2C2/SPI2/USART3/LPUART1/QUADSPI/TSC functions"
      },
      {
        "number": "30",
        "name": "PB11",
        "type": "bidirectional",
        "description": "GPIO port B pin 11, 5V tolerant Fm+ I2C, COMP2_OUT, TIM2/I2C4/I2C2/USART3/LPUART1/QUADSPI functions"
      },
      {
        "number": "31",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin"
      },
      {
        "number": "32",
        "name": "VDD",
        "type": "power_in",
        "description": "Main supply voltage, 1.71 V to 3.6 V"
      },
      {
        "number": "33",
        "name": "PB12",
        "type": "bidirectional",
        "description": "GPIO port B pin 12, 5V tolerant, TIM1_BKIN/TIM1_BKIN_COMP2, I2C2/SPI2/DFSDM/CAN1/SAI/TIM15 functions"
      },
      {
        "number": "34",
        "name": "PB13",
        "type": "bidirectional",
        "description": "GPIO port B pin 13, 5V tolerant Fm+ I2C, TIM1_CH1N, I2C2/SPI2/DFSDM/CAN1/SAI/TIM15 functions"
      },
      {
        "number": "35",
        "name": "PB14",
        "type": "bidirectional",
        "description": "GPIO port B pin 14, 5V tolerant Fm+ I2C, TIM1_CH2N, I2C2/SPI2/DFSDM/SAI/TIM15 functions"
      },
      {
        "number": "36",
        "name": "PB15",
        "type": "bidirectional",
        "description": "GPIO port B pin 15, 5V tolerant, RTC_REFIN, TIM1_CH3N, SPI2/DFSDM/SAI/TIM15 functions"
      },
      {
        "number": "37",
        "name": "PC6",
        "type": "bidirectional",
        "description": "GPIO port C pin 6, 5V tolerant, TIM3_CH1, SDMMC1_D6, DFSDM functions"
      },
      {
        "number": "38",
        "name": "PC7",
        "type": "bidirectional",
        "description": "GPIO port C pin 7, 5V tolerant, TIM3_CH2, SDMMC1_D7, DFSDM functions"
      },
      {
        "number": "39",
        "name": "PC8",
        "type": "bidirectional",
        "description": "GPIO port C pin 8, 5V tolerant, TIM3_CH3, SDMMC1_D0 function"
      },
      {
        "number": "40",
        "name": "PC9",
        "type": "bidirectional",
        "description": "GPIO port C pin 9, 5V tolerant, TIM3_CH4, SDMMC1_D1, USB_NOE functions"
      },
      {
        "number": "41",
        "name": "PA8",
        "type": "bidirectional",
        "description": "GPIO port A pin 8, 5V tolerant, MCO output, TIM1/USART1/SAI/DFSDM/LPTIM2 functions"
      },
      {
        "number": "42",
        "name": "PA9",
        "type": "bidirectional",
        "description": "GPIO port A pin 9, 5V tolerant Fm+ I2C, USART1_TX, TIM1/I2C1/DFSDM/SAI/TIM15 functions"
      },
      {
        "number": "43",
        "name": "PA10",
        "type": "bidirectional",
        "description": "GPIO port A pin 10, 5V tolerant Fm+ I2C, USART1_RX, USB_CRS_SYNC, TIM1/SAI functions"
      },
      {
        "number": "44",
        "name": "PA11",
        "type": "bidirectional",
        "description": "GPIO port A pin 11, USB DM signal, 5V tolerant, TIM1/SPI1/COMP1/USART1/CAN functions"
      },
      {
        "number": "45",
        "name": "PA12",
        "type": "bidirectional",
        "description": "GPIO port A pin 12, USB DP signal, 5V tolerant, USART1/CAN/SPI1 functions"
      },
      {
        "number": "46",
        "name": "PA13 (JTMS/SWDIO)",
        "type": "bidirectional",
        "description": ""
      },
      {
        "number": "47",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin"
      },
      {
        "number": "48",
        "name": "VDDUSB",
        "type": "power_in",
        "description": "USB supply voltage, 3.0 V to 3.6 V when USB used, 0 to 3.6 V otherwise"
      },
      {
        "number": "49",
        "name": "PA14 (JTCK/SWCLK)",
        "type": "bidirectional",
        "description": ""
      },
      {
        "number": "50",
        "name": "PA15 (JTDI)",
        "type": "bidirectional",
        "description": ""
      },
      {
        "number": "51",
        "name": "PC10",
        "type": "bidirectional",
        "description": "GPIO port C pin 10, 5V tolerant, TRACED1, SPI3/USART3/SDMMC1_D2/TSC functions"
      },
      {
        "number": "52",
        "name": "PC11",
        "type": "bidirectional",
        "description": "GPIO port C pin 11, 5V tolerant, SPI3/USART3/SDMMC1_D3/TSC functions"
      },
      {
        "number": "53",
        "name": "PC12",
        "type": "bidirectional",
        "description": "GPIO port C pin 12, 5V tolerant, TRACED3, SPI3/USART3/SDMMC1_CK/TSC functions"
      },
      {
        "number": "54",
        "name": "PD2",
        "type": "bidirectional",
        "description": "GPIO port D pin 2, 5V tolerant, TRACED2, TIM3_ETR, USART3/SDMMC1_CMD/TSC functions"
      },
      {
        "number": "55",
        "name": "PB3 (JTDO/TRACESWO)",
        "type": "bidirectional",
        "description": ""
      },
      {
        "number": "56",
        "name": "PB4 (NJTRST)",
        "type": "bidirectional",
        "description": ""
      },
      {
        "number": "57",
        "name": "PB5",
        "type": "bidirectional",
        "description": "GPIO port B pin 5, 5V tolerant, LPTIM1_IN1, TIM3/CAN/I2C1/SPI1/SPI3/TSC/COMP2/SAI functions"
      },
      {
        "number": "58",
        "name": "PB6",
        "type": "bidirectional",
        "description": "GPIO port B pin 6, 5V tolerant Fm+ I2C/analog switch, USART1_TX, LPUART/CAN/I2C4/TSC/SAI/TIM16 functions"
      },
      {
        "number": "59",
        "name": "PB7",
        "type": "bidirectional",
        "description": "GPIO port B pin 7, 5V tolerant Fm+ I2C/analog switch, USART1_RX, LPUART/CAN/I2C/TSC/COMP/SAI/TIM16 functions"
      },
      {
        "number": "60",
        "name": "PH3-BOOT0 (BOOT0)",
        "type": "bidirectional",
        "description": ""
      },
      {
        "number": "61",
        "name": "PB8",
        "type": "bidirectional",
        "description": "GPIO port B pin 8, 5V tolerant Fm+ I2C, I2C1/CAN/SDMMC1_D4/SAI/TIM16 functions"
      },
      {
        "number": "62",
        "name": "PB9",
        "type": "bidirectional",
        "description": "GPIO port B pin 9, 5V tolerant Fm+ I2C, I2C1/SPI2/CAN/SDMMC1_D5/SAI/IR_OUT functions"
      },
      {
        "number": "63",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin"
      },
      {
        "number": "64",
        "name": "VDD",
        "type": "power_in",
        "description": "Main supply voltage, 1.71 V to 3.6 V"
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588906265627648000",
        "pages": 221,
        "sha256": "0c90cbe36d057ab4",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 64,
        "described": 64,
        "cites_pages": true,
        "refuses_to_fabricate": true,
        "checked_against": "STM32_open_pin_data STM32L452R(C-E)Tx.xml"
      },
      "correction": {
        "at": "2026-09-30",
        "what": "41 of 64 pins corrected",
        "how": "pinout rebuilt from STMicroelectronics STM32_open_pin_data (STM32L452R(C-E)Tx.xml, LQFP64); the previous pinout came from a single-model extraction",
        "symbol": "regenerated from the corrected pinout"
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "STMicroelectronics",
      "Package": "LQFP-64(10x10)",
      "Category": "Embedded Processors & Controllers",
      "Pins": "64"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "stm32l452ret6"
  ],
  "discovery_pitch": "STM32L452RET6 (STMicroelectronics) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "stm32l452ret6.kicad_sym",
    "stm32l452ret6.kicad_mod",
    "stm32l452ret6.glb",
    "stm32l452ret6.step",
    "stm32l452ret6.lbr",
    "docs/hero.png",
    "docs/stm32l452ret6-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  }
}