STM32F303C8T6

{
  "schema_version": 1,
  "type": "component",
  "slug": "stm32f303c8t6",
  "title": "STM32F303C8T6",
  "brief": "STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-48(7x7). Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "embedded processors & controllers",
    "stm32f303c8t6",
    "factory-2.0.0",
    "extractor-text"
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  "component": {
    "mpn": "STM32F303C8T6",
    "manufacturer": "STMicroelectronics",
    "package": "LQFP-48(7x7)",
    "pin_count": 48,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586180208856195072",
    "parts": {
      "symbol": "stm32f303c8t6.kicad_sym",
      "footprint": "stm32f303c8t6.kicad_mod",
      "model_3d": "stm32f303c8t6-etched.glb",
      "model_3d_plain": "stm32f303c8t6.glb",
      "model_3d_step": "stm32f303c8t6-etched.step",
      "model_3d_step_plain": "stm32f303c8t6.step",
      "lbr": "stm32f303c8t6.lbr"
    },
    "distributor_links": {
      "lcsc": "C88449",
      "digikey": "497-15198-ND",
      "mouser": "511-STM32F303C8T6"
    },
    "distributor_check": {
      "checked_at": "2026-09-27T12:04:08Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "497-15198-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "511-STM32F303C8T6",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VBAT",
        "type": "power_in",
        "description": "Backup power supply for RTC, backup registers and wakeup logic, 1.65 to 3.6 V"
      },
      {
        "number": "2",
        "name": "PC13",
        "type": "bidirectional",
        "description": "General-purpose I/O with RTC backup domain interface, alternate functions TIM1_CH1N and RTC features"
      },
      {
        "number": "3",
        "name": "PC14/OSC32_IN",
        "type": "bidirectional",
        "description": "32 kHz oscillator input for RTC, alternate function OSC32_IN"
      },
      {
        "number": "4",
        "name": "PC15/OSC32_OUT",
        "type": "bidirectional",
        "description": "32 kHz oscillator output for RTC, alternate function OSC32_OUT"
      },
      {
        "number": "5",
        "name": "PF0/OSC_IN",
        "type": "bidirectional",
        "description": "5V-tolerant I/O with high-speed external oscillator input, alternate functions TIM1_CH3N and OSC_IN"
      },
      {
        "number": "6",
        "name": "PF1/OSC_OUT",
        "type": "bidirectional",
        "description": "5V-tolerant I/O with high-speed external oscillator output capability, alternate function OSC_OUT"
      },
      {
        "number": "7",
        "name": "NRST",
        "type": "bidirectional",
        "description": "Device reset input with embedded weak pull-up resistor, active low for internal and external reset"
      },
      {
        "number": "8",
        "name": "VSSA/VREF-",
        "type": "power_in",
        "description": "Analog ground and negative reference voltage for ADC and comparators"
      },
      {
        "number": "9",
        "name": "VDDA/VREF+",
        "type": "power_in",
        "description": "Analog power supply and positive reference voltage for ADC, DAC, and comparators, 2.0 to 3.6 V"
      },
      {
        "number": "10",
        "name": "PA0",
        "type": "bidirectional",
        "description": "3.3V-tolerant analog I/O with ADC1_IN1 input, timer, touch sensing and USART features"
      },
      {
        "number": "11",
        "name": "PA1",
        "type": "bidirectional",
        "description": "3.3V-tolerant analog I/O with ADC1_IN2 input, timer and USART features, RTC reference input"
      },
      {
        "number": "12",
        "name": "PA2",
        "type": "bidirectional",
        "description": "3.3V-tolerant analog I/O with ADC1_IN3 input, timer, comparator and USART functions"
      },
      {
        "number": "13",
        "name": "PA3",
        "type": "bidirectional",
        "description": "3.3V-tolerant analog I/O with ADC1_IN4 input, timer and USART receive capability"
      },
      {
        "number": "14",
        "name": "PA4",
        "type": "bidirectional",
        "description": "3.3V-tolerant analog I/O with ADC2_IN1 and DAC1_OUT1, SPI and touch sensing functions"
      },
      {
        "number": "15",
        "name": "PA5",
        "type": "bidirectional",
        "description": "3.3V-tolerant analog I/O with ADC2_IN2 and DAC1_OUT2, SPI and operational amplifier input"
      },
      {
        "number": "16",
        "name": "PA6",
        "type": "bidirectional",
        "description": "3.3V-tolerant analog I/O with ADC2_IN3 and DAC2_OUT1, SPI, timer and operational amplifier output"
      },
      {
        "number": "17",
        "name": "PA7",
        "type": "bidirectional",
        "description": "3.3V-tolerant analog I/O with ADC2_IN4 and operational amplifier input, SPI and timer functions"
      },
      {
        "number": "18",
        "name": "PB0",
        "type": "bidirectional",
        "description": "3.3V-tolerant analog I/O with ADC1_IN11, comparator and operational amplifier inputs, timer functions"
      },
      {
        "number": "19",
        "name": "PB1",
        "type": "bidirectional",
        "description": "3.3V-tolerant analog I/O with ADC1_IN12, comparator output, and timer channel capabilities"
      },
      {
        "number": "20",
        "name": "PB2",
        "type": "bidirectional",
        "description": "3.3V-tolerant analog I/O with ADC2_IN12 and comparator input, touch sensing capability"
      },
      {
        "number": "21",
        "name": "PB10",
        "type": "bidirectional",
        "description": "3.3V TTL I/O with timer, touch sensing synchronization and USART transmission functions"
      },
      {
        "number": "22",
        "name": "PB11",
        "type": "bidirectional",
        "description": "3.3V-tolerant analog I/O with ADC2_IN13 and comparator input, touch sensing and USART functions"
      },
      {
        "number": "23",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground reference for microcontroller power supply"
      },
      {
        "number": "24",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital power supply, 2.0 to 3.6 V for core, SRAM and Flash memory"
      },
      {
        "number": "25",
        "name": "PB12",
        "type": "bidirectional",
        "description": "3.3V-tolerant analog I/O with ADC2_IN13, timer and USART features, touch sensing capability"
      },
      {
        "number": "26",
        "name": "PB13",
        "type": "bidirectional",
        "description": "3.3V-tolerant analog I/O with ADC1_IN13, timer and USART functions, touch sensing capability"
      },
      {
        "number": "27",
        "name": "PB14",
        "type": "bidirectional",
        "description": "3.3V-tolerant analog I/O with ADC2_IN14 and operational amplifier input, timer and USART functions"
      },
      {
        "number": "28",
        "name": "PB15",
        "type": "bidirectional",
        "description": "3.3V-tolerant analog I/O with ADC2_IN15, comparator input and RTC reference, timer capabilities"
      },
      {
        "number": "29",
        "name": "PA8",
        "type": "bidirectional",
        "description": "5V-tolerant I/O with master clock output and timer functionality for audio/event synchronization"
      },
      {
        "number": "30",
        "name": "PA9",
        "type": "bidirectional",
        "description": "5V-tolerant I/O with timer, USART transmission and touch sensing group 4 input capability"
      },
      {
        "number": "31",
        "name": "PA10",
        "type": "bidirectional",
        "description": "5V-tolerant I/O with timer, USART reception, comparator output and touch sensing capability"
      },
      {
        "number": "32",
        "name": "PA11",
        "type": "bidirectional",
        "description": "5V-tolerant I/O with CAN receive, timer and USART handshake signals for communication"
      },
      {
        "number": "33",
        "name": "PA12",
        "type": "bidirectional",
        "description": "5V-tolerant I/O with CAN transmit, timer, comparator output and USART flow control"
      },
      {
        "number": "34",
        "name": "PA13",
        "type": "bidirectional",
        "description": "5V-tolerant JTAG/SWD debug pin with infrared output, timer and USART capabilities"
      },
      {
        "number": "35",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground reference for microcontroller power supply"
      },
      {
        "number": "36",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital power supply, 2.0 to 3.6 V for core, SRAM and Flash memory"
      },
      {
        "number": "37",
        "name": "PA14",
        "type": "bidirectional",
        "description": "5V-tolerant FM+ I2C clock pin with JTAG functionality, timer and USART features"
      },
      {
        "number": "38",
        "name": "PA15",
        "type": "bidirectional",
        "description": "5V-tolerant FM+ I2C data pin with JTAG input, SPI and USART capabilities, timer support"
      },
      {
        "number": "39",
        "name": "PB3",
        "type": "bidirectional",
        "description": "5V-tolerant I/O with JTAG output, SPI clock, timer and USART transmission functions"
      },
      {
        "number": "40",
        "name": "PB4",
        "type": "bidirectional",
        "description": "5V-tolerant I/O with JTAG reset, SPI data input, timer and USART reception capability"
      },
      {
        "number": "41",
        "name": "PB5",
        "type": "bidirectional",
        "description": "5V-tolerant I/O with I2C bus alert, SPI data output, timer and USART clock functionality"
      },
      {
        "number": "42",
        "name": "PB6",
        "type": "bidirectional",
        "description": "5V-tolerant FM+ I2C clock with timer and USART transmission for communication protocols"
      },
      {
        "number": "43",
        "name": "PB7",
        "type": "bidirectional",
        "description": "5V-tolerant FM+ I2C data pin with timer channel 4 and USART reception capability"
      },
      {
        "number": "44",
        "name": "BOOT0",
        "type": "input",
        "description": "Boot mode selection input, dedicated pin that determines boot source at reset"
      },
      {
        "number": "45",
        "name": "PB8",
        "type": "bidirectional",
        "description": "5V-tolerant FM+ I2C clock with CAN receive, timer and USART functions for communication"
      },
      {
        "number": "46",
        "name": "PB9",
        "type": "bidirectional",
        "description": "5V-tolerant FM+ I2C data pin with CAN transmit, infrared output and comparator capability"
      },
      {
        "number": "47",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground reference for microcontroller power supply"
      },
      {
        "number": "48",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital power supply, 2.0 to 3.6 V for core, SRAM and Flash memory"
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.2",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.2",
        "primary_model": "claude-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-4-6",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: All pins extracted from Table 14 (STM32F303x6/8 pin definitions) on pages 33-38 of the official STMi"
        ],
        "pages_sent": 115,
        "cost_usd": 1.0903,
        "at": "2026-09-27T12:03:43"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586180208856195072",
        "pages": 115,
        "sha256": "dc1490452e89dccc",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 48,
        "described": 48,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "STMicroelectronics",
      "Package": "LQFP-48(7x7)",
      "Category": "Embedded Processors & Controllers",
      "Pins": "48"
    }
  },
  "variants": [],
  "sections": [
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  "discovery_triggers": [
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  "discovery_pitch": "STM32F303C8T6 (STMicroelectronics) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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  "visibility": {
    "public": true
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}