STM32C031C6U6

{
  "slug": "stm32c031c6u6",
  "version": "0.1.0",
  "type": "component",
  "description": "STMicroelectronics Microcontrollers (MCU/MPU/SOC), UFQFPN-48(7x7). Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "embedded processors & controllers",
    "stm32c031c6u6",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "stm32c031c6u6.kicad_sym",
    "stm32c031c6u6.kicad_mod",
    "stm32c031c6u6.glb",
    "stm32c031c6u6.step",
    "stm32c031c6u6.lbr",
    "docs/hero.png",
    "docs/stm32c031c6u6-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "stm32c031c6u6-hero.glb",
    "stm32c031c6u6-hero.overlay.json",
    "stm32c031c6u6-etched.glb"
  ],
  "component": {
    "mpn": "STM32C031C6U6",
    "manufacturer": "STMicroelectronics",
    "package": "UFQFPN-48(7x7)",
    "pin_count": 49,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://www.st.com/resource/en/datasheet/stm32c031c6u6.pdf",
    "parts": {
      "symbol": "stm32c031c6u6.kicad_sym",
      "footprint": "stm32c031c6u6.kicad_mod",
      "model_3d": "stm32c031c6u6-hero.glb",
      "model_3d_plain": "stm32c031c6u6-etched.glb",
      "model_3d_step": "stm32c031c6u6-etched.step",
      "model_3d_step_plain": "stm32c031c6u6.step",
      "lbr": "stm32c031c6u6.lbr"
    },
    "distributor_links": {
      "lcsc": "C5456192",
      "digikey": "497-STM32C031C6U6-ND",
      "mouser": "511-STM32C031C6U6"
    },
    "distributor_check": {
      "checked_at": "2026-11-05T23:53:40Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "497-STM32C031C6U6-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "511-STM32C031C6U6",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "PC13",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PC13; alternate functions TIM1_ETR and TIM1_BKIN; additional functions RTC_TS, RTC_OUT1 and WKUP2."
      },
      {
        "number": "2",
        "name": "PC14-OSCX_IN",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PC14; alternate functions include USART1_TX, TIM1_ETR and I2C1_SDA; additional function OSCX_IN."
      },
      {
        "number": "3",
        "name": "PC15-OSCX_OUT",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PC15; alternate functions OSC32_EN, OSC_EN, TIM1_ETR and TIM3_CH3; additional function OSCX_OUT."
      },
      {
        "number": "4",
        "name": "PF3",
        "type": "power_in",
        "description": "Listed as supply-type pin S in Table 12 with no alternate or additional function assigned."
      },
      {
        "number": "5",
        "name": "VREF+",
        "type": "power_in",
        "description": "Positive ADC reference voltage; VREF+ conversion range is 2 V up to VDD according to Table 54."
      },
      {
        "number": "6",
        "name": "VDD/VDDA",
        "type": "power_in",
        "description": "Power supply pin for VDD and VDDA; standard operating voltage is 2.0 V to 3.6 V (Table 24)."
      },
      {
        "number": "7",
        "name": "VSS/VSSA",
        "type": "power_in",
        "description": "Ground reference pin for VSS and VSSA; all voltages are referenced to VSS."
      },
      {
        "number": "8",
        "name": "PF0-OSC_IN",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PF0; alternate function TIM14_CH1; additional function OSC_IN."
      },
      {
        "number": "9",
        "name": "PF1-OSC_OUT",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PF1; alternate function OSC_EN; additional function OSC_OUT."
      },
      {
        "number": "10",
        "name": "PF2-NRST",
        "type": "bidirectional",
        "description": "Bidirectional reset pin with embedded weak pull-up resistor; alternate functions MCO and TIM1_CH4."
      },
      {
        "number": "11",
        "name": "PA0",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PA0; alternate functions USART2_CTS, TIM16_CH1, USART1_TX and TIM1_CH1; additional function ADC_IN0 and WKUP1."
      },
      {
        "number": "12",
        "name": "PA1",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PA1; alternate functions include SPI1_SCK/I2S1_CK, USART2_RTS_DE_CK and USART1_RX; additional function ADC_IN1."
      },
      {
        "number": "13",
        "name": "PA2",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PA2; alternate functions include SPI1_MOSI/I2S1_SD, USART2_TX and TIM16_CH1N; additional functions ADC_IN2, WKUP4 and LSCO."
      },
      {
        "number": "14",
        "name": "PA3",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PA3; alternate functions USART2_RX, TIM1_CH1N, TIM1_CH4 and EVENTOUT; additional function ADC_IN3."
      },
      {
        "number": "15",
        "name": "PA4",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PA4; alternate functions include SPI1_NSS/I2S1_WS, USART2_TX and TIM14_CH1; additional functions ADC_IN4, RTC_TS, RTC_OUT1 and WKUP2."
      },
      {
        "number": "16",
        "name": "PA5",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PA5; alternate functions include SPI1_SCK/I2S1_CK, USART2_RX and TIM1_CH1; additional function ADC_IN5."
      },
      {
        "number": "17",
        "name": "PA6",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PA6; alternate functions include SPI1_MISO/I2S1_MCK, TIM3_CH1, TIM1_BKIN and TIM16_CH1; additional function ADC_IN6."
      },
      {
        "number": "18",
        "name": "PA7",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PA7; alternate functions include SPI1_MOSI/I2S1_SD, TIM3_CH2, TIM1_CH1N and TIM14_CH1; additional function ADC_IN7."
      },
      {
        "number": "19",
        "name": "PB0",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PB0; alternate functions SPI1_NSS/I2S1_WS, TIM3_CH3 and TIM1_CH2N; additional function ADC_IN17."
      },
      {
        "number": "20",
        "name": "PB1",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PB1; alternate functions include TIM14_CH1, TIM3_CH4, TIM1_CH3N and EVENTOUT; additional function ADC_IN18."
      },
      {
        "number": "21",
        "name": "PB2",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PB2; alternate functions USART1_RX, MCO2 and EVENTOUT; additional function ADC_IN19."
      },
      {
        "number": "22",
        "name": "PB10",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PB10 and no listed alternate function; additional function ADC_IN20."
      },
      {
        "number": "23",
        "name": "PB11",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PB11 and no listed alternate function; additional function ADC_IN21."
      },
      {
        "number": "24",
        "name": "PB12",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PB12; alternate functions TIM1_BKIN2, TIM1_BKIN and EVENTOUT; additional function ADC_IN22."
      },
      {
        "number": "25",
        "name": "PB13",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PB13; alternate functions TIM1_CH1N and EVENTOUT."
      },
      {
        "number": "26",
        "name": "PB14",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PB14; alternate functions TIM1_CH2N and EVENTOUT."
      },
      {
        "number": "27",
        "name": "PB15",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PB15; alternate functions TIM1_CH3N and EVENTOUT; additional function RTC_REFIN."
      },
      {
        "number": "28",
        "name": "PA8",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PA8; alternate functions include MCO, USART2_TX, TIM1_CH1 and SPI1_NSS/I2S1_WS; additional function ADC_IN8."
      },
      {
        "number": "29",
        "name": "PA9",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PA9 (footnote 1: PA9 and PA10 can be remapped in place of PA11 and PA12); alternate functions MCO, USART1_TX, TIM1_CH2, TIM3_ETR, I2C1_SCL and EVENTOUT."
      },
      {
        "number": "30",
        "name": "PC6",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PC6; alternate function TIM3_CH1."
      },
      {
        "number": "31",
        "name": "PC7",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PC7; alternate function TIM3_CH2."
      },
      {
        "number": "32",
        "name": "PA10",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PA10 (footnote 1: remappable in place of PA12); alternate functions USART1_RX, TIM1_CH3, MCO2, TIM17_BKIN, I2C1_SDA and EVENTOUT."
      },
      {
        "number": "33",
        "name": "PA11 [PA9]",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PA11, remappable to PA9 (footnote 1); alternate functions include SPI1_MISO/I2S1_MCK, USART1_CTS, TIM1_CH4 and TIM1_BKIN2; additional function ADC_IN11."
      },
      {
        "number": "34",
        "name": "PA12 [PA10]",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PA12, remappable to PA10 (footnote 1); alternate functions include SPI1_MOSI/I2S1_SD, USART1_RTS_DE_CK, TIM1_ETR and I2S_CKIN; additional function ADC_IN12."
      },
      {
        "number": "35",
        "name": "PA13",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PA13 that is configured as SWDIO after reset with internal pull-up (footnote 2); alternate functions include IR_OUT, TIM3_ETR and USART2_RX; additional function ADC_IN13."
      },
      {
        "number": "36",
        "name": "PA14-BOOT0",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PA14 that is configured as SWCLK after reset with internal pull-down (footnote 2); additional functions ADC_IN14 and BOOT0."
      },
      {
        "number": "37",
        "name": "PA15",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PA15; alternate functions include SPI1_NSS/I2S1_WS, USART2_RX, TIM1_CH1, MCO2 and EVENTOUT."
      },
      {
        "number": "38",
        "name": "PD0",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PD0; alternate functions EVENTOUT and TIM16_CH1."
      },
      {
        "number": "39",
        "name": "PD1",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PD1; alternate functions EVENTOUT and TIM17_CH1."
      },
      {
        "number": "40",
        "name": "PD2",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PD2; alternate functions TIM3_ETR and TIM1_CH1N."
      },
      {
        "number": "41",
        "name": "PD3",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PD3; alternate functions USART2_CTS and TIM1_CH2N."
      },
      {
        "number": "42",
        "name": "PB3",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PB3; alternate functions include SPI1_SCK/I2S1_CK, TIM1_CH2, TIM3_CH2, USART1_RTS_DE_CK and EVENTOUT."
      },
      {
        "number": "43",
        "name": "PB4",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PB4; alternate functions include SPI1_MISO/I2S1_MCK, TIM3_CH1, USART1_CTS, TIM17_BKIN and EVENTOUT."
      },
      {
        "number": "44",
        "name": "PB5",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PB5; alternate functions include SPI1_MOSI/I2S1_SD, TIM3_CH2, TIM16_BKIN, TIM3_CH3 and I2C1_SMBA; additional function WKUP6."
      },
      {
        "number": "45",
        "name": "PB6",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PB6; alternate functions include USART1_TX, TIM1_CH3, TIM16_CH1N, I2C1_SCL and I2C1_SMBA; additional function WKUP3."
      },
      {
        "number": "46",
        "name": "PB7",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PB7; alternate functions include USART1_RX, TIM1_CH4, TIM17_CH1N, TIM3_CH4, I2C1_SDA and EVENTOUT."
      },
      {
        "number": "47",
        "name": "PB8",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PB8; alternate functions include USART2_CTS, TIM16_CH1, TIM3_CH1, I2C1_SCL and EVENTOUT."
      },
      {
        "number": "48",
        "name": "PB9",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT) with default function PB9; alternate functions include IR_OUT, USART2_RTS_DE_CK, TIM17_CH1, TIM3_CH2, I2C1_SDA and EVENTOUT."
      },
      {
        "number": "49",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "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: UFQFPN48 (7x7) variant selected from Table 12 and Figure 8. The datasheet shows VSS on the exposed p",
          "1/49 pin names appear NOWHERE in the datasheet text: ['5:VREF+@p31']"
        ],
        "pages_sent": 50,
        "cost_usd": 0.0766,
        "at": "2026-11-05T23:53:28"
      },
      "datasheet": {
        "url": "https://www.st.com/resource/en/datasheet/stm32c031c6u6.pdf",
        "pages": 108,
        "sha256": "c0de50247b672919",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 49,
        "described": 49,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "stm32c031c6u6.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7.0,
          7.0,
          0.77
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "f2b38b0b4bf967c77e683e8d4599608b9f0503055ec535b93c4ebb5d0163e916",
        "checked": "2026-11-05",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "stm32c031c6u6-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7.0,
          7.0,
          0.77
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "9e2bc52eac18782eecf9b6e952e3437c0a06d08de3f3447ba3f0b2d3a7ed9f2e",
        "checked": "2026-11-05",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}