AT32F425C8T7

{
  "slug": "at32f425c8t7",
  "version": "0.1.0",
  "type": "component",
  "description": "ARTERY Microcontrollers (MCU/MPU/SOC), LQFP-48(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "embedded processors & controllers",
    "at32f425c8t7",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "at32f425c8t7.kicad_sym",
    "at32f425c8t7.kicad_mod",
    "at32f425c8t7.glb",
    "at32f425c8t7.step",
    "at32f425c8t7.lbr",
    "docs/hero.png",
    "docs/at32f425c8t7-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "at32f425c8t7-hero.glb",
    "at32f425c8t7-hero.overlay.json",
    "at32f425c8t7-etched.glb"
  ],
  "component": {
    "mpn": "AT32F425C8T7",
    "manufacturer": "ARTERY",
    "package": "LQFP-48(7x7)",
    "pin_count": 48,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589834705710854144",
    "parts": {
      "symbol": "at32f425c8t7.kicad_sym",
      "footprint": "at32f425c8t7.kicad_mod",
      "model_3d": "at32f425c8t7-hero.glb",
      "model_3d_plain": "at32f425c8t7-etched.glb",
      "model_3d_step": "at32f425c8t7-etched.step",
      "model_3d_step_plain": "at32f425c8t7.step",
      "lbr": "at32f425c8t7.lbr"
    },
    "distributor_links": {
      "lcsc": "C5161955"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T17:37:14Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply, 2.4 V to 3.6 V, which powers the GPIO pins, ERTC, LEXT, BPR and the internal LDO."
      },
      {
        "number": "2",
        "name": "PC13",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) general-purpose I/O with alternate functions ERTC_OUT, TAMP1 and WKUP2."
      },
      {
        "number": "3",
        "name": "PC14",
        "type": "bidirectional",
        "description": "Standard-level (TC) general-purpose I/O, not 5 V tolerant, that doubles as the LEXT_IN low-speed crystal input."
      },
      {
        "number": "4",
        "name": "PC15",
        "type": "bidirectional",
        "description": "Standard-level (TC) general-purpose I/O, not 5 V tolerant, that doubles as the LEXT_OUT low-speed crystal output."
      },
      {
        "number": "5",
        "name": "PF0",
        "type": "bidirectional",
        "description": "Standard-level (TC) general-purpose I/O, not 5 V tolerant, with alternate function TMR1_CH1 and additional function HEXT_IN (high-speed crystal input)."
      },
      {
        "number": "6",
        "name": "PF1",
        "type": "bidirectional",
        "description": "Standard-level (TC) general-purpose I/O, not 5 V tolerant, with alternate functions TMR1_CH2C, SPI2_CS and I2S2_WS and additional function HEXT_OUT."
      },
      {
        "number": "7",
        "name": "NRST",
        "type": "bidirectional",
        "description": "Bidirectional active-low reset pin (device reset input and internal reset output) with a built-in weak pull-up of 30 to 50 kΩ that cannot be disconnected."
      },
      {
        "number": "8",
        "name": "VSSA",
        "type": "power_in",
        "description": "Analog ground for the ADC, which must be at the same potential as VSS."
      },
      {
        "number": "9",
        "name": "VDDA",
        "type": "power_in",
        "description": "Analog supply for the ADC, 2.4 V to 3.6 V, which must be at the same potential as VDD."
      },
      {
        "number": "10",
        "name": "PA0",
        "type": "bidirectional",
        "description": "5 V tolerant with analog function (FTa) general-purpose I/O with ADC1_IN0, WKUP1 and USART2/TMR2 alternate functions; in analog mode the input must stay below VDD + 0.3 V."
      },
      {
        "number": "11",
        "name": "PA1",
        "type": "bidirectional",
        "description": "5 V tolerant with analog function (FTa) general-purpose I/O with ADC1_IN1 and USART2_RTS_DE, TMR2_CH2 and I2C2 alternate functions; in analog mode the input must stay below VDD + 0.3 V."
      },
      {
        "number": "12",
        "name": "PA2",
        "type": "bidirectional",
        "description": "5 V tolerant with analog function (FTa) general-purpose I/O with ADC1_IN2, WKUP4, TMR15_CH1, USART2_TX and CAN1_RX alternate functions; in analog mode the input must stay below VDD + 0.3 V."
      },
      {
        "number": "13",
        "name": "PA3",
        "type": "bidirectional",
        "description": "5 V tolerant with analog function (FTa) general-purpose I/O with ADC1_IN3, TMR15_CH2, USART2_RX, CAN1_TX and I2S2_MCK alternate functions; in analog mode the input must stay below VDD + 0.3 V."
      },
      {
        "number": "14",
        "name": "PA4",
        "type": "bidirectional",
        "description": "5 V tolerant with analog function (FTa) general-purpose I/O with ADC1_IN4 and SPI1_CS, I2S1_WS, USART2_CK and SPI2/SPI3 alternate functions; in analog mode the input must stay below VDD + 0.3 V."
      },
      {
        "number": "15",
        "name": "PA5",
        "type": "bidirectional",
        "description": "5 V tolerant with analog function (FTa) general-purpose I/O with ADC1_IN5 and SPI1_SCK, I2S1_CK, TMR2_CH1 and USART3 alternate functions; in analog mode the input must stay below VDD + 0.3 V."
      },
      {
        "number": "16",
        "name": "PA6",
        "type": "bidirectional",
        "description": "5 V tolerant with analog function (FTa) general-purpose I/O with ADC1_IN6 and SPI1_MISO, I2S1_MCK, TMR3_CH1, TMR1_BRK and TMR16_CH1 alternate functions; in analog mode the input must stay below VDD + 0.3 V."
      },
      {
        "number": "17",
        "name": "PA7",
        "type": "bidirectional",
        "description": "5 V tolerant with analog function (FTa) general-purpose I/O with ADC1_IN7 and SPI1_MOSI, I2S1_SD, TMR3_CH2, TMR1_CH1C and USART3_TX alternate functions; in analog mode the input must stay below VDD + 0.3 V."
      },
      {
        "number": "18",
        "name": "PB0",
        "type": "bidirectional",
        "description": "5 V tolerant with analog function (FTa) general-purpose I/O with ADC1_IN8 and TMR3_CH3, TMR1_CH2C, USART2_RX, USART3_CK and SPI1_MISO alternate functions; in analog mode the input must stay below VDD + 0.3 V."
      },
      {
        "number": "19",
        "name": "PB1",
        "type": "bidirectional",
        "description": "5 V tolerant with analog function (FTa) general-purpose I/O with ADC1_IN9 and TMR14_CH1, TMR3_CH4, TMR1_CH3C, USART3_RTS_DE and SPI1_MOSI alternate functions; in analog mode the input must stay below VDD + 0.3 V."
      },
      {
        "number": "20",
        "name": "PB2",
        "type": "bidirectional",
        "description": "5 V tolerant with analog function (FTa) general-purpose I/O with alternate functions TMR3_EXT, SPI3_MOSI, I2S3_SD and I2C1_SMBA; in analog mode the input must stay below VDD + 0.3 V."
      },
      {
        "number": "21",
        "name": "PB10",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) general-purpose I/O with alternate functions I2C2_SCL, TMR2_CH3, USART3_TX, SPI2_SCK and I2S2_CK."
      },
      {
        "number": "22",
        "name": "PB11",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) general-purpose I/O with alternate functions EVENTOUT, I2C2_SDA, TMR2_CH4 and USART3_RX."
      },
      {
        "number": "23",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "24",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply, 2.4 V to 3.6 V."
      },
      {
        "number": "25",
        "name": "PB12",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) general-purpose I/O with alternate functions SPI2_CS, I2S2_WS, EVENTOUT, TMR1_BRK, USART3_CK, TMR15_BRK, SPI3_CS, I2S3_WS and I2C2_SMBA."
      },
      {
        "number": "26",
        "name": "PB13",
        "type": "bidirectional",
        "description": "5 V tolerant with 20 mA sink capability (FTf) general-purpose I/O with alternate functions SPI2_SCK, I2S2_CK, TMR15_CH1C, TMR1_CH1C, CLKOUT, USART3_CTS, I2C2_SCL, SPI3_SCK and I2S3_CK."
      },
      {
        "number": "27",
        "name": "PB14",
        "type": "bidirectional",
        "description": "5 V tolerant with 20 mA sink capability (FTf) general-purpose I/O with alternate functions SPI2_MISO, I2S2_MCK, TMR15_CH1, TMR1_CH2C, USART3_RTS_DE, I2C2_SDA, SPI3_MISO and I2S3_MCK."
      },
      {
        "number": "28",
        "name": "PB15",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) general-purpose I/O with alternate functions SPI2_MOSI, I2S2_SD, TMR15_CH2, TMR1_CH3C, ERTC_REFIN, SPI3_MOSI and I2S3_SD, and wake-up function WKUP7."
      },
      {
        "number": "29",
        "name": "PA8",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) general-purpose I/O with alternate functions CLKOUT, USART1_CK, TMR1_CH1, OTGFS1_SOF, USART2_TX, EVENTOUT and I2C2_SCL."
      },
      {
        "number": "30",
        "name": "PA9",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) general-purpose I/O with alternate functions TMR15_BRK, USART1_TX, TMR1_CH2, OTGFS1_VBUS, I2C1_SCL, CLKOUT, SPI3_SCK and I2S3_CK."
      },
      {
        "number": "31",
        "name": "PA10",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) general-purpose I/O with alternate functions TMR17_BRK, USART1_RX, TMR1_CH3, OTGFS1_ID, I2C1_SDA, ERTC_REFIN, SPI3_MOSI and I2S3_SD."
      },
      {
        "number": "32",
        "name": "PA11",
        "type": "bidirectional",
        "description": "Standard-level (TC) general-purpose I/O, not 5 V tolerant, with alternate functions EVENTOUT, USART1_CTS, TMR1_CH4, SPI3_CS, CAN1_RX and I2C2_SCL, and OTGFS1_D- when OTGFS1 is enabled."
      },
      {
        "number": "33",
        "name": "PA12",
        "type": "bidirectional",
        "description": "Standard-level (TC) general-purpose I/O, not 5 V tolerant, with alternate functions EVENTOUT, USART1_RTS_DE, TMR1_EXT, CAN1_TX, I2C2_SDA, SPI3_MISO and I2S3_MCK, and OTGFS1_D+ when OTGFS1 is enabled."
      },
      {
        "number": "34",
        "name": "PA13",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) general-purpose I/O that is configured as the SWDIO debug pin after reset with its internal pull-up enabled; alternate functions include IR_OUT, OTGFS1_OE, SPI3_MISO and I2C1_SDA."
      },
      {
        "number": "35",
        "name": "PF6",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) general-purpose I/O with alternate functions I2C2_SCL and USART4_RX."
      },
      {
        "number": "36",
        "name": "PF7",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) general-purpose I/O with alternate functions I2C2_SDA and USART4_TX."
      },
      {
        "number": "37",
        "name": "PA14",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) general-purpose I/O that is configured as the SWCLK debug pin after reset with its internal pull-down enabled; alternate functions include USART2_TX, SPI3_MOSI, I2S3_SD and SPI2_MOSI."
      },
      {
        "number": "38",
        "name": "PA15",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) general-purpose I/O with alternate functions SPI1_CS, I2S1_WS, USART2_RX, TMR2_CH1, EVENTOUT, USART4_RTS_DE, OTGFS1_OE, SPI2_CS and SPI3_CS."
      },
      {
        "number": "39",
        "name": "PB3",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) general-purpose I/O with alternate functions SPI1_SCK, I2S1_CK, EVENTOUT, TMR2_CH2, USART1_RTS_DE, USART2_CTS, SPI2_SCK and SWO."
      },
      {
        "number": "40",
        "name": "PB4",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) general-purpose I/O with alternate functions SPI1_MISO, I2S1_MCK, TMR3_CH1, EVENTOUT, USART1_CTS, TMR17_BRK, SPI2_MISO and I2C1_SDA."
      },
      {
        "number": "41",
        "name": "PB5",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) general-purpose I/O with wake-up function WKUP6 and alternate functions SPI1_MOSI, I2S1_SD, TMR3_CH2, TMR16_BRK, I2C1_SMBA, USART1_CK and USART2_RTS_DE."
      },
      {
        "number": "42",
        "name": "PB6",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) general-purpose I/O with alternate functions USART1_TX, I2C1_SCL, TMR16_CH1C, USART4_CK, I2S1_MCK, SPI3_CS and I2S3_WS."
      },
      {
        "number": "43",
        "name": "PB7",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) general-purpose I/O with alternate functions USART1_RX, I2C1_SDA, TMR17_CH1C, USART4_CTS, SPI3_SCK and I2S3_CK."
      },
      {
        "number": "44",
        "name": "BOOT0",
        "type": "input",
        "description": "Dedicated boot mode selection pin 0 with a built-in weak pull-down that cannot be disabled."
      },
      {
        "number": "45",
        "name": "PB8",
        "type": "bidirectional",
        "description": "5 V tolerant with 20 mA sink capability (FTf) general-purpose I/O with alternate functions USART1_TX, I2C1_SCL, TMR16_CH1, EVENTOUT, CAN1_RX, SPI3_MISO and I2S3_MCK."
      },
      {
        "number": "46",
        "name": "PB9",
        "type": "bidirectional",
        "description": "5 V tolerant with 20 mA sink capability (FTf) general-purpose I/O with alternate functions IR_OUT, I2C1_SDA, TMR17_CH1, EVENTOUT, CAN1_TX, SPI2_CS, I2S2_WS, I2S1_MCK, SPI3_MOSI and I2S3_SD."
      },
      {
        "number": "47",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "48",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply, 2.4 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 MPN AT32F425C8T7 is listed in Table 1 under 64 KB flash. Table 55 decodes the 'C' as 48 pins, 'T; The LQFP48 package has no exposed pad. The EPAD (VSS) entry in Table 5 applies only to QFN48 (pin 49; The descriptions are English paraphrases of the Chinese datasheet. They list the alternate functions"
        ],
        "pages_sent": 72,
        "cost_usd": 0.2615,
        "at": "2026-10-18T17:33:07"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589834705710854144",
        "pages": 79,
        "sha256": "d7b9e2a417131ac3",
        "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"
    },
    "models_3d": [
      {
        "file": "at32f425c8t7.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9.0,
          9.0,
          1.5
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "9dea352d93177c2904afd7d7b68ea8855ce1ab691f69f8b3e13655600514b6bf",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "at32f425c8t7-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9.0,
          9.0,
          1.5
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "aa900f23e5b940d07965a3d3f04f96529d01237565fdec5ee9cc7716f91bac4d",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}