AT32F403AVCT7

{
  "slug": "at32f403avct7",
  "version": "0.1.0",
  "type": "component",
  "description": "ARTERY Microcontrollers (MCU/MPU/SOC), LQFP-100(14x14). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "embedded processors & controllers",
    "at32f403avct7",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "at32f403avct7.kicad_sym",
    "at32f403avct7.kicad_mod",
    "at32f403avct7.glb",
    "at32f403avct7.step",
    "at32f403avct7.lbr",
    "docs/hero.png",
    "docs/at32f403avct7-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "at32f403avct7-hero.glb",
    "at32f403avct7-hero.overlay.json",
    "at32f403avct7-etched.glb"
  ],
  "component": {
    "mpn": "AT32F403AVCT7",
    "manufacturer": "ARTERY",
    "package": "LQFP-100(14x14)",
    "pin_count": 100,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588886679369629696",
    "parts": {
      "symbol": "at32f403avct7.kicad_sym",
      "footprint": "at32f403avct7.kicad_mod",
      "model_3d": "at32f403avct7-hero.glb",
      "model_3d_plain": "at32f403avct7-etched.glb",
      "model_3d_step": "at32f403avct7-etched.step",
      "model_3d_step_plain": "at32f403avct7.step",
      "lbr": "at32f403avct7.lbr"
    },
    "distributor_links": {
      "lcsc": "C528441"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T05:34:48Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "PE2",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions SPI4_SCK/I2S4_CK, XMC_A23 and TRACECK."
      },
      {
        "number": "2",
        "name": "PE3",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions XMC_A19 and TRACED0."
      },
      {
        "number": "3",
        "name": "PE4",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions SPI4_NSS/I2S4_WS, XMC_A20 and TRACED1."
      },
      {
        "number": "4",
        "name": "PE5",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions SPI4_MISO, XMC_A21, TRACED2 and TMR9_CH1."
      },
      {
        "number": "5",
        "name": "PE6",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions SPI4_MOSI/I2S4_SD, XMC_A22, TRACED3 and TMR9_CH2."
      },
      {
        "number": "6",
        "name": "VBAT",
        "type": "power_in",
        "description": "Backup supply, 1.8 V to 3.6 V, powering the RTC, the 32 kHz oscillator and the backup registers when VDD is off."
      },
      {
        "number": "7",
        "name": "PC13/TAMPER-RTC",
        "type": "bidirectional",
        "description": "Standard-level (TC) I/O with TAMPER-RTC function; supplied through a power switch limited to 3 mA, so as an output it is limited to medium drive, 30 pF maximum load, and must not source current (e.g. LEDs)."
      },
      {
        "number": "8",
        "name": "PC14/OSC32_IN",
        "type": "bidirectional",
        "description": "Standard-level (TC) I/O with OSC32_IN function; same 3 mA power-switch limit as PC13 applies when used as output."
      },
      {
        "number": "9",
        "name": "PC15/OSC32_OUT",
        "type": "bidirectional",
        "description": "Standard-level (TC) I/O with OSC32_OUT function; same 3 mA power-switch limit as PC13 applies when used as output."
      },
      {
        "number": "10",
        "name": "VSS_5",
        "type": "power_in",
        "description": "Ground pin; must be connected to the external ground system."
      },
      {
        "number": "11",
        "name": "VDD_5",
        "type": "power_in",
        "description": "Power supply pin, 2.6 V to 3.6 V, for I/O pins and the internal regulator."
      },
      {
        "number": "12",
        "name": "OSC_IN",
        "type": "input",
        "description": "HSE oscillator input for a 4 to 25 MHz crystal/resonator or external user clock."
      },
      {
        "number": "13",
        "name": "OSC_OUT",
        "type": "output",
        "description": "HSE oscillator output for the 4 to 25 MHz crystal/resonator."
      },
      {
        "number": "14",
        "name": "NRST",
        "type": "bidirectional",
        "description": "Active-low reset pin with an internal pull-up (RPU 30 to 50 kΩ) that cannot be disconnected."
      },
      {
        "number": "15",
        "name": "PC0",
        "type": "bidirectional",
        "description": "5 V-tolerant FTa I/O (not 5 V-tolerant in analog mode, where input must stay below VDD+0.3 V); alternate functions ADC123_IN10 and SDIO2_D0."
      },
      {
        "number": "16",
        "name": "PC1",
        "type": "bidirectional",
        "description": "5 V-tolerant FTa I/O (not 5 V-tolerant in analog mode, where input must stay below VDD+0.3 V); alternate functions ADC123_IN11 and SDIO2_D1."
      },
      {
        "number": "17",
        "name": "PC2",
        "type": "bidirectional",
        "description": "5 V-tolerant FTa I/O (not 5 V-tolerant in analog mode, where input must stay below VDD+0.3 V); alternate functions ADC123_IN12, SDIO2_D2, UART8_TX and XMC_NWE."
      },
      {
        "number": "18",
        "name": "PC3",
        "type": "bidirectional",
        "description": "5 V-tolerant FTa I/O (not 5 V-tolerant in analog mode, where input must stay below VDD+0.3 V); alternate functions ADC123_IN13, SDIO2_D3, XMC_A0 and UART8_RX."
      },
      {
        "number": "19",
        "name": "VSSA",
        "type": "power_in",
        "description": "Analog ground for the ADC and DAC; must be connected to VSS."
      },
      {
        "number": "20",
        "name": "VREF-",
        "type": "power_in",
        "description": "Negative reference voltage input for the ADC and DAC; VREF- is included in the 50 mV maximum ground-difference limit."
      },
      {
        "number": "21",
        "name": "VREF+",
        "type": "power_in",
        "description": "Positive reference voltage input for the ADC and DAC, from 2.6 V up to VDDA (may be tied to VDDA)."
      },
      {
        "number": "22",
        "name": "VDDA",
        "type": "power_in",
        "description": "Analog supply, 2.6 V to 3.6 V, for the ADC and DAC; must be connected to VDD (up to 300 mV difference allowed)."
      },
      {
        "number": "23",
        "name": "PA0-WKUP",
        "type": "bidirectional",
        "description": "Standard-level (TC) I/O; wake-up input WKUP; alternate functions ADC123_IN0, USART2_CTS, TMR2_CH1, TMR2_ETR, TMR5_CH1, TMR8_ETR and UART4_TX."
      },
      {
        "number": "24",
        "name": "PA1",
        "type": "bidirectional",
        "description": "5 V-tolerant FTa I/O (not 5 V-tolerant in analog mode, where input must stay below VDD+0.3 V); alternate functions ADC123_IN1, USART2_RTS, TMR2_CH2, TMR5_CH2 and UART4_RX."
      },
      {
        "number": "25",
        "name": "PA2",
        "type": "bidirectional",
        "description": "5 V-tolerant FTa I/O (not 5 V-tolerant in analog mode, where input must stay below VDD+0.3 V); alternate functions ADC123_IN2, USART2_TX, TMR2_CH3, TMR5_CH3, TMR9_CH1, SDIO2_CK and XMC_D4."
      },
      {
        "number": "26",
        "name": "PA3",
        "type": "bidirectional",
        "description": "5 V-tolerant FTa I/O (not 5 V-tolerant in analog mode, where input must stay below VDD+0.3 V); alternate functions ADC123_IN3, USART2_RX, TMR2_CH4, TMR5_CH4, TMR9_CH2, I2S2_MCK, SDIO2_CMD and XMC_D5."
      },
      {
        "number": "27",
        "name": "VSS_4",
        "type": "power_in",
        "description": "Ground pin; must be connected to the external ground system."
      },
      {
        "number": "28",
        "name": "VDD_4",
        "type": "power_in",
        "description": "Power supply pin, 2.6 V to 3.6 V, for I/O pins and the internal regulator."
      },
      {
        "number": "29",
        "name": "PA4",
        "type": "bidirectional",
        "description": "5 V-tolerant FTa I/O (not 5 V-tolerant in analog mode, where input must stay below VDD+0.3 V); alternate functions DAC_OUT1, ADC12_IN4, USART2_CK, SPI1_NSS, I2S1_WS, SDIO2_D4, USART6_TX, SPI3_NSS, I2S3_WS, SDIO2_D0 and XMC_D6."
      },
      {
        "number": "30",
        "name": "PA5",
        "type": "bidirectional",
        "description": "5 V-tolerant FTa I/O (not 5 V-tolerant in analog mode, where input must stay below VDD+0.3 V); alternate functions DAC_OUT2, ADC12_IN5, SPI1_SCK, I2S1_CK, SDIO2_D5, USART6_RX, SDIO2_D1 and XMC_D7."
      },
      {
        "number": "31",
        "name": "PA6",
        "type": "bidirectional",
        "description": "5 V-tolerant FTa I/O (not 5 V-tolerant in analog mode, where input must stay below VDD+0.3 V); alternate functions ADC12_IN6, SPI1_MISO, SDIO2_D6, TMR3_CH1, TMR8_BKIN, TMR13_CH1, I2S2_MCK, SDIO2_D2 and TMR1_BKIN."
      },
      {
        "number": "32",
        "name": "PA7",
        "type": "bidirectional",
        "description": "5 V-tolerant FTa I/O (not 5 V-tolerant in analog mode, where input must stay below VDD+0.3 V); alternate functions ADC12_IN7, SPI1_MOSI, I2S1_SD, SDIO2_D7, TMR3_CH2, TMR8_CH1N, TMR14_CH1, SDIO2_D3 and TMR1_CH1N."
      },
      {
        "number": "33",
        "name": "PC4",
        "type": "bidirectional",
        "description": "5 V-tolerant FTa I/O (not 5 V-tolerant in analog mode, where input must stay below VDD+0.3 V); alternate functions ADC12_IN14, SDIO2_CK and XMC_NE4."
      },
      {
        "number": "34",
        "name": "PC5",
        "type": "bidirectional",
        "description": "5 V-tolerant FTa I/O (not 5 V-tolerant in analog mode, where input must stay below VDD+0.3 V); alternate functions ADC12_IN15, SDIO2_CMD and XMC_NOE."
      },
      {
        "number": "35",
        "name": "PB0",
        "type": "bidirectional",
        "description": "5 V-tolerant FTa I/O (not 5 V-tolerant in analog mode, where input must stay below VDD+0.3 V); alternate functions ADC12_IN8, I2S1_MCK, TMR3_CH3, TMR8_CH2N and TMR1_CH2N."
      },
      {
        "number": "36",
        "name": "PB1",
        "type": "bidirectional",
        "description": "5 V-tolerant FTa I/O (not 5 V-tolerant in analog mode, where input must stay below VDD+0.3 V); alternate functions ADC12_IN9, SPIM_SCK, TMR3_CH4, TMR8_CH3N and TMR1_CH3N."
      },
      {
        "number": "37",
        "name": "PB2/BOOT1",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO that also serves as the BOOT1 boot-mode configuration input."
      },
      {
        "number": "38",
        "name": "PE7",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions UART7_RX, XMC_D4 and TMR1_ETR."
      },
      {
        "number": "39",
        "name": "PE8",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions UART7_TX, XMC_D5 and TMR1_CH1N."
      },
      {
        "number": "40",
        "name": "PE9",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions XMC_D6 and TMR1_CH1."
      },
      {
        "number": "41",
        "name": "PE10",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions XMC_D7 and TMR1_CH2N."
      },
      {
        "number": "42",
        "name": "PE11",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions XMC_D8, SPI4_SCK, I2S4_CK and TMR1_CH2."
      },
      {
        "number": "43",
        "name": "PE12",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions XMC_D9, SPI4_NSS, I2S4_WS and TMR1_CH3N."
      },
      {
        "number": "44",
        "name": "PE13",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions XMC_D10, SPI4_MISO and TMR1_CH3."
      },
      {
        "number": "45",
        "name": "PE14",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions XMC_D11, SPI4_MOSI, I2S4_SD and TMR1_CH4."
      },
      {
        "number": "46",
        "name": "PE15",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions XMC_D12 and TMR1_BKIN."
      },
      {
        "number": "47",
        "name": "PB10",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions USART3_TX, I2C2_SCL, I2S3_MCK, SPIM_IO0 and TMR2_CH3."
      },
      {
        "number": "48",
        "name": "PB11",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions USART3_RX, I2C2_SDA, SPIM_IO1 and TMR2_CH4."
      },
      {
        "number": "49",
        "name": "VSS_1",
        "type": "power_in",
        "description": "Ground pin; must be connected to the external ground system."
      },
      {
        "number": "50",
        "name": "VDD_1",
        "type": "power_in",
        "description": "Power supply pin, 2.6 V to 3.6 V, for I/O pins and the internal regulator."
      },
      {
        "number": "51",
        "name": "PB12",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions USART3_CK, CAN2_RX, I2C2_SMBA, SPI2_NSS, I2S2_WS, TMR1_BKIN and XMC_D13."
      },
      {
        "number": "52",
        "name": "PB13",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions USART3_CTS, CAN2_TX, SPI2_SCK, I2S2_CK and TMR1_CH1N."
      },
      {
        "number": "53",
        "name": "PB14",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions USART3_RTS, SPI2_MISO, I2S2ext_SD, TMR1_CH2N, TMR12_CH1 and XMC_D0."
      },
      {
        "number": "54",
        "name": "PB15",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions SPI2_MOSI, I2S2_SD, TMR1_CH3N and TMR12_CH2."
      },
      {
        "number": "55",
        "name": "PD8",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions XMC_D13 and USART3_TX."
      },
      {
        "number": "56",
        "name": "PD9",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions XMC_D14 and USART3_RX."
      },
      {
        "number": "57",
        "name": "PD10",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions XMC_D15 and USART3_CK."
      },
      {
        "number": "58",
        "name": "PD11",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions XMC_A16 and USART3_CTS."
      },
      {
        "number": "59",
        "name": "PD12",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions XMC_A17, USART3_RTS and TMR4_CH1."
      },
      {
        "number": "60",
        "name": "PD13",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions XMC_A18 and TMR4_CH2."
      },
      {
        "number": "61",
        "name": "PD14",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions XMC_D0 and TMR4_CH3."
      },
      {
        "number": "62",
        "name": "PD15",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions XMC_D1 and TMR4_CH4."
      },
      {
        "number": "63",
        "name": "PC6",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions USART6_TX, I2S2_MCK, SDIO1_D6, TMR8_CH1, XMC_D1 and TMR3_CH1."
      },
      {
        "number": "64",
        "name": "PC7",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions USART6_RX, I2S3_MCK, SDIO1_D7, TMR8_CH2 and TMR3_CH2."
      },
      {
        "number": "65",
        "name": "PC8",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions USART6_CK, I2S4_MCK, SDIO1_D0, TMR8_CH3 and TMR3_CH3."
      },
      {
        "number": "66",
        "name": "PC9",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions I2C3_SDA, SDIO1_D1, TMR8_CH4 and TMR3_CH4."
      },
      {
        "number": "67",
        "name": "PA8",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions CLKOUT, USART1_CK, I2C3_SCL, USB_SOF, SPIM_NSS and TMR1_CH1."
      },
      {
        "number": "68",
        "name": "PA9",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions USART1_TX, I2C3_SMBA and TMR1_CH2."
      },
      {
        "number": "69",
        "name": "PA10",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions USART1_RX, TMR1_CH3 and I2S4_MCK."
      },
      {
        "number": "70",
        "name": "PA11",
        "type": "bidirectional",
        "description": "Standard-level (TC) I/O; alternate functions USB_DM, USART1_CTS, CAN1_RX, SPIM_IO0 and TMR1_CH4."
      },
      {
        "number": "71",
        "name": "PA12",
        "type": "bidirectional",
        "description": "Standard-level (TC) I/O; alternate functions USB_DP, USART1_RTS, CAN1_TX, SPIM_IO1 and TMR1_ETR."
      },
      {
        "number": "72",
        "name": "PA13",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; default function JTMS-SWDIO (SWJ debug data I/O)."
      },
      {
        "number": "73",
        "name": "NC",
        "type": "unconnected",
        "description": "Listed as not connected (未连接) in the pin definition table for LQFP100."
      },
      {
        "number": "74",
        "name": "VSS_2",
        "type": "power_in",
        "description": "Ground pin; must be connected to the external ground system."
      },
      {
        "number": "75",
        "name": "VDD_2",
        "type": "power_in",
        "description": "Power supply pin, 2.6 V to 3.6 V, for I/O pins and the internal regulator."
      },
      {
        "number": "76",
        "name": "PA14",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; default function JTCK-SWCLK (SWJ debug clock)."
      },
      {
        "number": "77",
        "name": "PA15",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; default function JTDI; alternate functions SPI3_NSS, I2S3_WS, SPI1_NSS, I2S1_WS, TMR2_CH1 and TMR2_ETR."
      },
      {
        "number": "78",
        "name": "PC10",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions UART4_TX, SDIO1_D2, USART3_TX, SPI3_SCK and I2S3_CK."
      },
      {
        "number": "79",
        "name": "PC11",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions UART4_RX, SDIO1_D3, USART3_RX, SPI3_MISO, I2S3ext_SD and XMC_D2."
      },
      {
        "number": "80",
        "name": "PC12",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions UART5_TX, SDIO1_CK, USART3_CK, SPI3_MOSI, I2S3_SD and XMC_D3."
      },
      {
        "number": "81",
        "name": "PD0",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions XMC_D2 and CAN1_RX."
      },
      {
        "number": "82",
        "name": "PD1",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions XMC_D3 and CAN1_TX."
      },
      {
        "number": "83",
        "name": "PD2",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions UART5_RX, SDIO1_CMD, TMR3_ETR and XMC_NWE."
      },
      {
        "number": "84",
        "name": "PD3",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions XMC_CLK and USART2_CTS."
      },
      {
        "number": "85",
        "name": "PD4",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions XMC_NOE and USART2_RTS."
      },
      {
        "number": "86",
        "name": "PD5",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions XMC_NWE and USART2_TX."
      },
      {
        "number": "87",
        "name": "PD6",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions XMC_NWAIT and USART2_RX."
      },
      {
        "number": "88",
        "name": "PD7",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions XMC_NE1, XMC_NCE2 and USART2_CK."
      },
      {
        "number": "89",
        "name": "PB3",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; default function JTDO (also TRACESWO); alternate functions SPI3_SCK, I2S3_CK, UART7_RX, SPI1_SCK, I2S1_CK and TMR2_CH2."
      },
      {
        "number": "90",
        "name": "PB4",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; default function NJTRST; alternate functions SPI3_MISO, I2S3ext_SD, SPI1_MISO, I2C3_SDA, UART7_TX and TMR3_CH1."
      },
      {
        "number": "91",
        "name": "PB5",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions SPI3_MOSI, I2S3_SD, I2C1_SMBA, SPI1_MOSI, I2S1_SD, CAN2_RX and TMR3_CH2."
      },
      {
        "number": "92",
        "name": "PB6",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions I2C1_SCL, SPIM_IO3, TMR4_CH1, USART1_TX, I2S1_MCK, SPI4_NSS, I2S4_WS and CAN2_TX."
      },
      {
        "number": "93",
        "name": "PB7",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions I2C1_SDA, XMC_NADV, SPIM_IO2, TMR4_CH2, USART1_RX, SPI4_SCK and I2S4_CK."
      },
      {
        "number": "94",
        "name": "BOOT0",
        "type": "input",
        "description": "Boot mode select input; its weak pull-down (RPD 60 to 100 kΩ) cannot be disabled."
      },
      {
        "number": "95",
        "name": "PB8",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions SDIO1_D4, TMR4_CH3, TMR10_CH1, UART5_RX, SPI4_MISO, I2C1_SCL and CAN1_RX."
      },
      {
        "number": "96",
        "name": "PB9",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions SDIO1_D5, TMR4_CH4, TMR11_CH1, UART5_TX, SPI4_MOSI, I2S4_SD, I2C1_SDA and CAN1_TX."
      },
      {
        "number": "97",
        "name": "PE0",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions UART8_RX, XMC_NBL0 and TMR4_ETR."
      },
      {
        "number": "98",
        "name": "PE1",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; alternate functions UART8_TX and XMC_NBL1."
      },
      {
        "number": "99",
        "name": "VSS_3",
        "type": "power_in",
        "description": "Ground pin; must be connected to the external ground system."
      },
      {
        "number": "100",
        "name": "VDD_3",
        "type": "power_in",
        "description": "Power supply pin, 2.6 V to 3.6 V, for I/O pins and the internal regulator; the 4.7 µF decoupling capacitor in the power scheme must be connected to VDD3."
      }
    ],
    "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 pin table (pages 28-31) is a multi-column layout (LQFP48, QFN48, LQFP64, LQFP100) with some colu; Pin 73 is listed as 未连接 (not connected) and is shown as NC in Figure 3; it is typed as unconnected.; The exposed pad (EPAD, VSS) is only listed for QFN48 in the table and has no LQFP100 pin number, so "
        ],
        "pages_sent": 79,
        "cost_usd": 0.3547,
        "at": "2026-10-19T05:32:13"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588886679369629696",
        "pages": 96,
        "sha256": "602689c1ae94c051",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 100,
        "described": 100,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "at32f403avct7.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          16.0,
          16.0,
          1.5
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "51720097260ffba41c3062f85f67623721102fa535901c47cb555a1f444feeb3",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "at32f403avct7-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          16.0,
          16.0,
          1.5
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "7b273721fe46ca02ee3ef3232a8e90f882eef277e8ce1031824f8e55b345a795",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}