STM32F446RCT7

{
  "slug": "stm32f446rct7",
  "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",
    "stm32f446rct7",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "stm32f446rct7.kicad_sym",
    "stm32f446rct7.kicad_mod",
    "stm32f446rct7.glb",
    "stm32f446rct7.step",
    "stm32f446rct7.lbr",
    "docs/hero.png",
    "docs/stm32f446rct7-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "stm32f446rct7-hero.glb",
    "stm32f446rct7-hero.overlay.json"
  ],
  "component": {
    "mpn": "STM32F446RCT7",
    "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/8588894018406633472",
    "parts": {
      "symbol": "stm32f446rct7.kicad_sym",
      "footprint": "stm32f446rct7.kicad_mod",
      "model_3d": "stm32f446rct7-hero.glb",
      "model_3d_plain": "stm32f446rct7.glb",
      "model_3d_step": "stm32f446rct7-etched.step",
      "model_3d_step_plain": "stm32f446rct7.step",
      "lbr": "stm32f446rct7.lbr"
    },
    "distributor_links": {
      "lcsc": "C1338449",
      "digikey": "497-16774-ND",
      "mouser": "511-STM32F446RCT7"
    },
    "distributor_check": {
      "checked_at": "2026-10-10T23:26:40Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "497-16774-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "511-STM32F446RCT7",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VBAT",
        "type": "power_in",
        "description": "Backup power supply input for the RTC, the 20x32-bit backup registers and the optional 4 KB backup SRAM."
      },
      {
        "number": "2",
        "name": "PC13",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with EVENTOUT, and the TAMP_1/WKUP1 tamper and wake-up function."
      },
      {
        "number": "3",
        "name": "PC14-OSC32_IN",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O that serves as the 32 kHz oscillator input OSC32_IN."
      },
      {
        "number": "4",
        "name": "PC15-OSC32_OUT",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O that serves as the 32 kHz oscillator output OSC32_OUT."
      },
      {
        "number": "5",
        "name": "PH0-OSC_IN",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O that serves as the 4-26 MHz crystal oscillator input OSC_IN."
      },
      {
        "number": "6",
        "name": "PH1-OSC_OUT",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O that serves as the 4-26 MHz crystal oscillator output OSC_OUT."
      },
      {
        "number": "7",
        "name": "NRST",
        "type": "bidirectional",
        "description": "Bidirectional reset pin with a weak pull-up resistor (RST structure)."
      },
      {
        "number": "8",
        "name": "PC0",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with ADC123_IN10 analog input; alternate functions include SAI1_MCLK_B, OTG_HS_ULPI_STP and FMC_SDNWE."
      },
      {
        "number": "9",
        "name": "PC1",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with ADC123_IN11 analog input; alternate functions include SPI3_MOSI/I2S3_SD, SAI1_SD_A and SPI2_MOSI/I2S2_SD."
      },
      {
        "number": "10",
        "name": "PC2",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with ADC123_IN12 analog input; alternate functions include SPI2_MISO, OTG_HS_ULPI_DIR and FMC_SDNE0."
      },
      {
        "number": "11",
        "name": "PC3",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with ADC123_IN13 analog input; alternate functions include SPI2_MOSI/I2S2_SD, OTG_HS_ULPI_NXT and FMC_SDCKE0."
      },
      {
        "number": "12",
        "name": "VSSA",
        "type": "power_in",
        "description": "Analog ground pin (the LQFP64 figure labels this pin VSSA/VREF-)."
      },
      {
        "number": "13",
        "name": "VDDA",
        "type": "power_in",
        "description": "Analog supply pin (the LQFP64 figure labels this pin VDDA/VREF+)."
      },
      {
        "number": "14",
        "name": "PA0-WKUP",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with ADC123_IN0 analog input and WKUP0/TAMP_2 wake-up function; alternate functions include TIM2_CH1/TIM2_ETR and USART2_CTS."
      },
      {
        "number": "15",
        "name": "PA1",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with ADC123_IN1 analog input; alternate functions include TIM2_CH2, USART2_RTS and UART4_RX."
      },
      {
        "number": "16",
        "name": "PA2",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with ADC123_IN2 analog input; alternate functions include TIM2_CH3, TIM9_CH1 and USART2_TX."
      },
      {
        "number": "17",
        "name": "PA3",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with ADC123_IN3 analog input; alternate functions include TIM2_CH4, SAI1_FS_A and USART2_RX."
      },
      {
        "number": "18",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground pin."
      },
      {
        "number": "19",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply pin; the application supply and I/Os operate from 1.7 V to 3.6 V."
      },
      {
        "number": "20",
        "name": "PA4",
        "type": "bidirectional",
        "description": "3.3 V tolerant (TTa) I/O directly connected to the ADC, with ADC12_IN4 and DAC_OUT1 analog functions; alternate functions include SPI1_NSS/I2S1_WS and USART2_CK."
      },
      {
        "number": "21",
        "name": "PA5",
        "type": "bidirectional",
        "description": "3.3 V tolerant (TTa) I/O directly connected to the ADC, with ADC12_IN5 and DAC_OUT2 analog functions; alternate functions include TIM2_CH1/TIM2_ETR and SPI1_SCK/I2S1_CK."
      },
      {
        "number": "22",
        "name": "PA6",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with ADC12_IN6 analog input; alternate functions include TIM1_BKIN, SPI1_MISO and DCMI_PIXCLK."
      },
      {
        "number": "23",
        "name": "PA7",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with ADC12_IN7 analog input; alternate functions include TIM1_CH1N, SPI1_MOSI/I2S1_SD and FMC_SDNWE."
      },
      {
        "number": "24",
        "name": "PC4",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with ADC12_IN14 analog input; alternate functions include I2S1_MCK, SPDIFRX_IN2 and FMC_SDNE0."
      },
      {
        "number": "25",
        "name": "PC5",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with ADC12_IN15 analog input; alternate functions include USART3_RX, SPDIFRX_IN3 and FMC_SDCKE0."
      },
      {
        "number": "26",
        "name": "PB0",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with ADC12_IN8 analog input; alternate functions include TIM1_CH2N, TIM3_CH3 and OTG_HS_ULPI_D1."
      },
      {
        "number": "27",
        "name": "PB1",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with ADC12_IN9 analog input; alternate functions include TIM1_CH3N, TIM3_CH4 and OTG_HS_ULPI_D2."
      },
      {
        "number": "28",
        "name": "PB2-BOOT1",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O that is also the BOOT1 pin; alternate functions include TIM2_CH4, SAI1_SD_A and QUADSPI_CLK."
      },
      {
        "number": "29",
        "name": "PB10",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O; alternate functions include TIM2_CH3, I2C2_SCL and SPI2_SCK/I2S2_CK."
      },
      {
        "number": "30",
        "name": "VCAP_1",
        "type": "power_in",
        "description": "VCAP_1 pin for the external capacitor of the internal regulator supply domain (see section 6.3.2, VCAP_1 / VCAP_2 external capacitor)."
      },
      {
        "number": "31",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground pin."
      },
      {
        "number": "32",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply pin; the application supply and I/Os operate from 1.7 V to 3.6 V."
      },
      {
        "number": "33",
        "name": "PB12",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O; alternate functions include TIM1_BKIN, I2C2_SMBA and OTG_HS_ID."
      },
      {
        "number": "34",
        "name": "PB13",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O; alternate functions include TIM1_CH1N, SPI2_SCK/I2S2_CK and OTG_HS_ULPI_D6, with OTG_HS_VBUS as an additional function."
      },
      {
        "number": "35",
        "name": "PB14",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O supplied by VDDUSB; alternate functions include TIM1_CH2N, SPI2_MISO and OTG_HS_DM."
      },
      {
        "number": "36",
        "name": "PB15",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O supplied by VDDUSB; alternate functions include RTC_REFIN, TIM1_CH3N and OTG_HS_DP."
      },
      {
        "number": "37",
        "name": "PC6",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with I2C FM+ option (FTf); alternate functions include TIM3_CH1, TIM8_CH1 and FMPI2C1_SCL."
      },
      {
        "number": "38",
        "name": "PC7",
        "type": "bidirectional",
        "description": "5 V tolerant I/O with I2C FM+ option (FTf); alternate functions include TIM3_CH2, TIM8_CH2 and FMPI2C1_SDA."
      },
      {
        "number": "39",
        "name": "PC8",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O; alternate functions include TRACED0, TIM3_CH3 and SDIO_D0."
      },
      {
        "number": "40",
        "name": "PC9",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O; alternate functions include MCO2, TIM3_CH4 and I2C3_SDA."
      },
      {
        "number": "41",
        "name": "PA8",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O; alternate functions include MCO1, TIM1_CH1 and OTG_FS_SOF."
      },
      {
        "number": "42",
        "name": "PA9",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O; alternate functions include TIM1_CH2, USART1_TX and DCMI_D0, with OTG_FS_VBUS as an additional function."
      },
      {
        "number": "43",
        "name": "PA10",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O; alternate functions include TIM1_CH3, USART1_RX and OTG_FS_ID."
      },
      {
        "number": "44",
        "name": "PA11",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O supplied by VDDUSB; alternate functions include TIM1_CH4, USART1_CTS and OTG_FS_DM."
      },
      {
        "number": "45",
        "name": "PA12",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O supplied by VDDUSB; alternate functions include TIM1_ETR, USART1_RTS and OTG_FS_DP."
      },
      {
        "number": "46",
        "name": "PA13",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O that is the JTMS-SWDIO debug pin."
      },
      {
        "number": "47",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground pin."
      },
      {
        "number": "48",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply pin; the application supply and I/Os operate from 1.7 V to 3.6 V."
      },
      {
        "number": "49",
        "name": "PA14",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O that is the JTCK-SWCLK debug pin."
      },
      {
        "number": "50",
        "name": "PA15",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O that is the JTDI debug pin; alternate functions include TIM2_CH1/TIM2_ETR, HDMI_CEC and SPI1_NSS/I2S1_WS."
      },
      {
        "number": "51",
        "name": "PC10",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O; alternate functions include SPI3_SCK/I2S3_CK, USART3_TX and UART4_TX."
      },
      {
        "number": "52",
        "name": "PC11",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O; alternate functions include SPI3_MISO, USART3_RX and UART4_RX."
      },
      {
        "number": "53",
        "name": "PC12",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O; alternate functions include I2C2_SDA, SPI3_MOSI/I2S3_SD and UART5_TX."
      },
      {
        "number": "54",
        "name": "PD2",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O; alternate functions include TIM3_ETR, UART5_RX and SDIO_CMD."
      },
      {
        "number": "55",
        "name": "PB3",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O that is the JTDO/TRACESWO debug pin; alternate functions include TIM2_CH2 and I2C2_SDA."
      },
      {
        "number": "56",
        "name": "PB4",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O that is the NJTRST debug pin; alternate functions include TIM3_CH1 and I2C3_SDA."
      },
      {
        "number": "57",
        "name": "PB5",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O; alternate functions include TIM3_CH2, I2C1_SMBA and SPI1_MOSI/I2S1_SD."
      },
      {
        "number": "58",
        "name": "PB6",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O; alternate functions include TIM4_CH1, I2C1_SCL and USART1_TX."
      },
      {
        "number": "59",
        "name": "PB7",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O; alternate functions include TIM4_CH2, I2C1_SDA and USART1_RX."
      },
      {
        "number": "60",
        "name": "BOOT0",
        "type": "input",
        "description": "Dedicated BOOT0 input pin (structure B) that also carries the VPP function."
      },
      {
        "number": "61",
        "name": "PB8",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O; alternate functions include TIM2_CH1/TIM2_ETR, TIM4_CH3 and I2C1_SCL."
      },
      {
        "number": "62",
        "name": "PB9",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O; alternate functions include TIM2_CH2, TIM4_CH4 and I2C1_SDA."
      },
      {
        "number": "63",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground pin."
      },
      {
        "number": "64",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply pin; the application supply and I/Os operate from 1.7 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 datasheet gives only the 'S' (supply) pin type for VCAP_1. I classified it as power_in; its role; Table 10 names these pins VSSA and VDDA, while the LQFP64 pinout figure labels them VSSA/VREF- and V; The datasheet gives only the 'S' pin type for supply and ground pins. VDD and VSS are classified as "
        ],
        "pages_sent": 64,
        "cost_usd": 0.3485,
        "at": "2026-10-10T23:26:14"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588894018406633472",
        "pages": 198,
        "sha256": "3902cf9f939a0ef6",
        "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"
    },
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        "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": "2026-10-10",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "stm32f446rct7-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          1.5
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        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "abed27208242bc6c85ef339655492fcdf4e2a7712f05aee47475cc477136fc3f",
        "checked": "2026-10-10",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}