AT32F437ZMT7

{
  "slug": "at32f437zmt7",
  "version": "0.1.0",
  "type": "component",
  "description": "ARTERY Microcontroller Units (MCUs/MPUs/SOCs), LQFP-144(20x20). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "single chip microcomputer-microcontroller",
    "at32f437zmt7",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "at32f437zmt7.kicad_sym",
    "at32f437zmt7.kicad_mod",
    "at32f437zmt7.glb",
    "at32f437zmt7.step",
    "at32f437zmt7.lbr",
    "docs/hero.png",
    "docs/at32f437zmt7-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "at32f437zmt7-hero.glb",
    "at32f437zmt7-hero.overlay.json",
    "at32f437zmt7-etched.glb"
  ],
  "component": {
    "mpn": "AT32F437ZMT7",
    "manufacturer": "ARTERY",
    "package": "LQFP-144(20x20)",
    "pin_count": 144,
    "category": "Single Chip Microcomputer/Microcontroller",
    "subcategory": "Microcontroller Units (MCUs/MPUs/SOCs)",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/db4b0fe3cb2fe13951aac92c4deef420.pdf",
    "parts": {
      "symbol": "at32f437zmt7.kicad_sym",
      "footprint": "at32f437zmt7.kicad_mod",
      "model_3d": "at32f437zmt7-hero.glb",
      "model_3d_plain": "at32f437zmt7-etched.glb",
      "model_3d_step": "at32f437zmt7-etched.step",
      "model_3d_step_plain": "at32f437zmt7.step",
      "lbr": "at32f437zmt7.lbr"
    },
    "distributor_links": {
      "lcsc": "C3020656"
    },
    "distributor_check": {
      "checked_at": "2026-10-27T08:51:47Z",
      "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 I/O (FT) with alternate functions TMR3_EXT, SPI4_SCK, I2S4_CK, TMR20_CH1, QSPI1_IO2, XMC_SDNCAS, EMAC_MII_TXD3, XMC_A23."
      },
      {
        "number": "2",
        "name": "PE3",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TMR3_CH1, TMR20_CH2, XMC_A19, DVP_D9."
      },
      {
        "number": "3",
        "name": "PE4",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions CLKOUT1, TMR3_CH2, SPI4_CS, I2S4_WS, TMR20_CH1C, XMC_A20, DVP_D4."
      },
      {
        "number": "4",
        "name": "PE5",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TMR3_CH3, TMR9_CH1, SPI4_MISO, TMR20_CH2C, XMC_A21, DVP_D6."
      },
      {
        "number": "5",
        "name": "PE6",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TMR3_CH4, TMR9_CH2, SPI4_MOSI, I2S4_SD, TMR20_CH3C, XMC_SDNRAS, XMC_A22, DVP_D7."
      },
      {
        "number": "6",
        "name": "VBAT",
        "type": "power_in",
        "description": "Battery supply for the VBAT domain (ERTC, LEXT, BPR), 1.62 to 3.6 V."
      },
      {
        "number": "7",
        "name": "PC13",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) on a power switch limited to 3 mA, so it cannot source current such as an LED when used as output; alternate functions ERTC_AF1, WKUP2."
      },
      {
        "number": "8",
        "name": "PC14/LEXT_IN",
        "type": "bidirectional",
        "description": "Standard-level I/O (TC) on a power switch limited to 3 mA when used as output; LEXT_IN low-speed oscillator input."
      },
      {
        "number": "9",
        "name": "PC15/LEXT_OUT",
        "type": "bidirectional",
        "description": "Standard-level I/O (TC) on a power switch limited to 3 mA when used as output; LEXT_OUT low-speed oscillator output."
      },
      {
        "number": "10",
        "name": "PF0",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions I2C2_SDA, XMC_A0."
      },
      {
        "number": "11",
        "name": "PF1",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions I2C2_SCL, XMC_A1."
      },
      {
        "number": "12",
        "name": "PF2",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TMR20_CH3, I2C2_SMBA, XMC_A2."
      },
      {
        "number": "13",
        "name": "PF3",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FTa) in input modes only, not 5 V tolerant in analog mode; alternate functions TMR20_CH4, XMC_A3; analog ADC3_IN9."
      },
      {
        "number": "14",
        "name": "PF4",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FTa) in input modes only, not 5 V tolerant in analog mode; alternate functions TMR20_CH1C, XMC_A4; analog ADC3_IN14."
      },
      {
        "number": "15",
        "name": "PF5",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FTa) in input modes only, not 5 V tolerant in analog mode; alternate functions TMR20_CH2C, XMC_A5; analog ADC3_IN15."
      },
      {
        "number": "16",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "17",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply voltage, 2.6 to 3.6 V."
      },
      {
        "number": "18",
        "name": "PF6",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FTa) in input modes only; alternate functions TMR10_CH1, TMR20_CH4, UART7_RX, QSPI1_IO3, XMC_NIORD; analog ADC3_IN4."
      },
      {
        "number": "19",
        "name": "PF7",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FTa) in input modes only; alternate functions TMR11_CH1, TMR20_BRK, UART7_TX, QSPI1_IO2, XMC_NREG; analog ADC3_IN5."
      },
      {
        "number": "20",
        "name": "PF8",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FTa) in input modes only; alternate functions TMR13_CH1, QSPI1_IO0, XMC_NIOWR; analog ADC3_IN6."
      },
      {
        "number": "21",
        "name": "PF9",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FTa) in input modes only; alternate functions TMR14_CH1, TMR20_BRK, QSPI1_IO1, XMC_CD; analog ADC3_IN7."
      },
      {
        "number": "22",
        "name": "PF10",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FTa) in input modes only; alternate functions TMR1_EXT, TMR5_CH4, QSPI1_SCK, XMC_INTR, DVP_D11; analog ADC3_IN8."
      },
      {
        "number": "23",
        "name": "PH0/HEXT_IN",
        "type": "bidirectional",
        "description": "Standard-level I/O (TC) with HEXT_IN high-speed oscillator input and alternate function I2C1_SDA."
      },
      {
        "number": "24",
        "name": "PH1/HEXT_OUT",
        "type": "bidirectional",
        "description": "Standard-level I/O (TC) with HEXT_OUT high-speed oscillator output and alternate function I2C1_SCL."
      },
      {
        "number": "25",
        "name": "NRST",
        "type": "bidirectional",
        "description": "Device reset input and internal reset output, active low, with built-in weak pull-up."
      },
      {
        "number": "26",
        "name": "PC0",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FTa) in input modes only; alternate functions I2C3_SCL, UART7_TX, SDIO2_D0, XMC_SDNWE; analog ADC123_IN10."
      },
      {
        "number": "27",
        "name": "PC1",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FTa) in input modes only; alternate functions I2C3_SDA, SPI3_MOSI, I2S3_SD, SPI2_MOSI, I2S2_SD, UART7_RX, SDIO2_D1, EMAC_MDC; analog ADC123_IN11."
      },
      {
        "number": "28",
        "name": "PC2",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FTa) in input modes only; alternate functions TMR20_CH2, SPI2_MISO, I2S2_SDEXT, UART8_TX, SDIO2_D2, EMAC_MII_TXD2, XMC_SDCS0, XMC_NWE; analog ADC123_IN12."
      },
      {
        "number": "29",
        "name": "PC3",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FTa) in input modes only; alternate functions SPI2_MOSI, I2S2_SD, UART8_RX, QSPI2_IO1, SDIO2_D3, EMAC_MII_TX_CLK, XMC_SDCKE0, XMC_A0; analog ADC123_IN13."
      },
      {
        "number": "30",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected on the LQFP144 package."
      },
      {
        "number": "31",
        "name": "VSSA/VREF-",
        "type": "power_in",
        "description": "Analog ground and negative reference voltage."
      },
      {
        "number": "32",
        "name": "VREF+",
        "type": "power_in",
        "description": "Positive reference voltage for ADC and DAC."
      },
      {
        "number": "33",
        "name": "VDDA",
        "type": "power_in",
        "description": "Analog supply for ADC and DAC, must be connected to VDD (2.6 to 3.6 V)."
      },
      {
        "number": "34",
        "name": "PA0",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FTa) in input modes only; alternate functions TMR2_CH1, TMR2_EXT, TMR5_CH1, TMR8_EXT, I2C2_SCL, USART2_CTS, UART4_TX, EMAC_MII_CRS; analog ADC123_IN0, ERTC_AF2, WKUP1."
      },
      {
        "number": "35",
        "name": "PA1",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FTa) in input modes only; alternate functions TMR2_CH2, TMR5_CH2, I2C2_SDA, SPI4_MOSI, I2S4_SD, USART2_RTS_DE, UART4_RX, QSPI1_IO3, EMAC_MII_RX_CLK, EMAC_RMII_REF_CLK; analog ADC123_IN1."
      },
      {
        "number": "36",
        "name": "PA2",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FTa) in input modes only; alternate functions TMR2_CH3, TMR5_CH3, TMR9_CH1, USART2_TX, SDIO2_CK, EMAC_MDIO, XMC_D4; analog ADC123_IN2."
      },
      {
        "number": "37",
        "name": "PA3",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FTa) in input modes only; alternate functions TMR2_CH4, TMR5_CH4, TMR9_CH2, I2S2_MCK, USART2_RX, QSPI2_IO3, SDIO2_CMD, EMAC_MII_COL, XMC_D5; analog ADC123_IN3."
      },
      {
        "number": "38",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "39",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply voltage, 2.6 to 3.6 V."
      },
      {
        "number": "40",
        "name": "PA4",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FTa) in input modes only; alternate functions SPI1_CS, I2S1_WS, SPI3_CS, I2S3_WS, USART2_CK, USART6_TX, SDIO2_D4, SDIO2_D0, OTGFS2_SOF, DVP_HSYNC, XMC_D6; analog ADC12_IN4, DAC1_OUT."
      },
      {
        "number": "41",
        "name": "PA5",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FTa) in input modes only; alternate functions TMR2_CH1, TMR2_EXT, TMR8_CH1C, SPI1_SCK, I2S1_CK, USART6_RX, QSPI2_IO2, SDIO2_D5, SDIO2_D1, XMC_D7; analog ADC12_IN5, DAC2_OUT."
      },
      {
        "number": "42",
        "name": "PA6",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FTa) in input modes only; alternate functions TMR1_BRK, TMR3_CH1, TMR8_BRK, SPI1_MISO, I2S2_MCK, USART3_CTS, TMR13_CH1, QSPI1_IO0, SDIO2_D2, SDIO1_CMD, DVP_PCLK, SDIO2_D6; analog ADC12_IN6."
      },
      {
        "number": "43",
        "name": "PA7",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FTa) in input modes only; alternate functions TMR1_CH1C, TMR3_CH2, TMR8_CH1C, SPI1_MOSI, I2S1_SD, TMR14_CH1, QSPI1_IO1, EMAC_MII_RX_DV, EMAC_RMII_CRS_DV, XMC_SDNWE, SDIO2_D3, SDIO2_D7; analog ADC12_IN7."
      },
      {
        "number": "44",
        "name": "PC4",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FTa) in input modes only; alternate functions TMR9_CH1, I2S1_MCK, USART3_TX, QSPI1_IO2, EMAC_MII_RXD0, EMAC_RMII_RXD0, XMC_SDCS0, SDIO2_CK, XMC_NE4; analog ADC12_IN14."
      },
      {
        "number": "45",
        "name": "PC5",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FTa) in input modes only; alternate functions TMR9_CH2, I2C1_SMBA, USART3_RX, QSPI1_IO3, EMAC_MII_RXD1, EMAC_RMII_RXD1, XMC_SDCKE0, SDIO2_CMD, XMC_NOE; analog ADC12_IN15."
      },
      {
        "number": "46",
        "name": "PB0",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FTa) in input modes only; alternate functions TMR1_CH2C, TMR3_CH3, TMR8_CH2C, I2S1_MCK, USART2_RX, SPI3_MOSI, I2S3_SD, USART3_CK, QSPI2_IO0, QSPI1_IO0, EMAC_MII_RXD2, SDIO1_D1; analog ADC12_IN8."
      },
      {
        "number": "47",
        "name": "PB1",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FTa) in input modes only; alternate functions TMR1_CH3C, TMR3_CH4, TMR8_CH3C, SPI2_SCK, I2S2_CK, USART3_RTS_DE, QSPI1_SCK, QSPI2_SCK, EMAC_MII_RXD3, SDIO1_D2; analog ADC12_IN9."
      },
      {
        "number": "48",
        "name": "PB2/BOOT1",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TMR2_CH4, TMR20_CH1, I2C3_SMBA, SPI3_MOSI, I2S3_SD, QSPI1_SCK, SDIO1_CK; also BOOT1 boot-mode pin."
      },
      {
        "number": "49",
        "name": "PF11",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TMR20_EXT, TMR8_EXT, XMC_SDNRAS, DVP_D12."
      },
      {
        "number": "50",
        "name": "PF12",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TMR20_CH1, TMR8_BRK, XMC_A6."
      },
      {
        "number": "51",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "52",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply voltage, 2.6 to 3.6 V."
      },
      {
        "number": "53",
        "name": "PF13",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TMR20_CH2, I2C3_SMBA, XMC_A7."
      },
      {
        "number": "54",
        "name": "PF14",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FTf) with 20 mA sink capability; alternate functions TMR20_CH3, I2C3_SCL, XMC_A8."
      },
      {
        "number": "55",
        "name": "PF15",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FTf) with 20 mA sink capability; alternate functions TMR20_CH4, I2C3_SDA, XMC_A9."
      },
      {
        "number": "56",
        "name": "PG0",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TMR20_CH1C, SPI1_MISO, CAN1_RX, XMC_A10."
      },
      {
        "number": "57",
        "name": "PG1",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TMR20_CH2C, SPI1_MOSI, I2S1_SD, CAN1_TX, XMC_A11."
      },
      {
        "number": "58",
        "name": "PE7",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TMR1_EXT, UART7_RX, QSPI2_IO0, XMC_D4."
      },
      {
        "number": "59",
        "name": "PE8",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TMR1_CH1C, UART4_TX, UART7_TX, QSPI2_IO1, XMC_D5."
      },
      {
        "number": "60",
        "name": "PE9",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TMR1_CH1, UART4_RX, QSPI2_IO2, XMC_D6."
      },
      {
        "number": "61",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "62",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply voltage, 2.6 to 3.6 V."
      },
      {
        "number": "63",
        "name": "PE10",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TMR1_CH2C, UART5_TX, QSPI2_IO3, XMC_D7."
      },
      {
        "number": "64",
        "name": "PE11",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TMR1_CH2, SPI4_CS, I2S4_WS, UART5_RX, XMC_D8."
      },
      {
        "number": "65",
        "name": "PE12",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TMR1_CH3C, SPI1_CS, I2S1_WS, SPI4_SCK, I2S4_CK, XMC_D9."
      },
      {
        "number": "66",
        "name": "PE13",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TMR1_CH3, SPI1_SCK, I2S1_CK, SPI4_MISO, XMC_D10."
      },
      {
        "number": "67",
        "name": "PE14",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TMR1_CH4, SPI1_MISO, SPI4_MOSI, I2S4_SD, XMC_D11."
      },
      {
        "number": "68",
        "name": "PE15",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TMR1_BRK, SPI1_MOSI, I2S1_SD, XMC_D12."
      },
      {
        "number": "69",
        "name": "PB10",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FTf) with 20 mA sink capability; alternate functions TMR2_CH3, I2C2_SCL, SPI2_SCK, I2S2_CK, I2S3_MCK, USART3_TX, QSPI1_CS, QSPI1_IO1, EMAC_MII_RX_ER, SDIO1_D7, XMC_NOE."
      },
      {
        "number": "70",
        "name": "PB11",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TMR2_CH4, TMR5_CH4, I2C2_SDA, USART3_RX, QSPI1_IO0, EMAC_MII_TX_EN, EMAC_RMII_TX_EN."
      },
      {
        "number": "71",
        "name": "PH3",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TMR5_CH2, I2C2_SDA, UART4_TX, QSPI1_IO1."
      },
      {
        "number": "72",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply voltage, 2.6 to 3.6 V."
      },
      {
        "number": "73",
        "name": "PB12",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TMR1_BRK, TMR5_CH1, I2C2_SMBA, SPI2_CS, I2S2_WS, SPI4_CS, I2S4_WS, SPI3_SCK, I2S3_CK, USART3_CK, CAN2_RX, EMAC_MII_TXD0, EMAC_RMII_TXD0, OTGFS2_ID, XMC_D13."
      },
      {
        "number": "74",
        "name": "PB13",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TMR1_CH1C, I2C3_SMBA, SPI2_SCK, I2S2_CK, SPI4_SCK, I2S4_CK, I2C3_SCL, USART3_CTS, CAN2_TX, EMAC_MII_TXD1, EMAC_RMII_TXD1, OTGFS2_VBUS."
      },
      {
        "number": "75",
        "name": "PB14",
        "type": "bidirectional",
        "description": "Standard-level I/O (TC) with alternate functions TMR1_CH2C, TMR8_CH2C, I2C3_SDA, SPI2_MISO, I2S2_SDEXT, USART3_RTS_DE, TMR12_CH1, OTGFS2_D-, SDIO1_D6, XMC_D0."
      },
      {
        "number": "76",
        "name": "PB15",
        "type": "bidirectional",
        "description": "Standard-level I/O (TC) with alternate functions ERTC_REFIN, TMR1_CH3C, TMR8_CH3C, I2C3_SCL, SPI2_MOSI, I2S2_SD, TMR12_CH2, OTGFS2_D+, SDIO1_CK."
      },
      {
        "number": "77",
        "name": "PD8",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions USART3_TX, EMAC_MII_RX_DV, EMAC_RMII_CRS_DV, XMC_D13."
      },
      {
        "number": "78",
        "name": "PD9",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions USART3_RX, EMAC_MII_RXD0, EMAC_RMII_RXD0, XMC_D14."
      },
      {
        "number": "79",
        "name": "PD10",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions USART3_CK, EMAC_MII_RXD1, EMAC_RMII_RXD1, XMC_D15."
      },
      {
        "number": "80",
        "name": "PD11",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions I2C2_SMBA, USART3_CTS, QSPI1_IO0, XMC_A14, XMC_SDBA0, EMAC_MII_RXD2, XMC_A16_CLE."
      },
      {
        "number": "81",
        "name": "PD12",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FTf) with 20 mA sink capability; alternate functions TMR4_CH1, I2C2_SCL, USART3_RTS_DE, QSPI1_IO1, XMC_A15, XMC_SDBA1, EMAC_MII_RXD3, XMC_A17_ALE."
      },
      {
        "number": "82",
        "name": "PD13",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FTf) with 20 mA sink capability; alternate functions TMR4_CH2, I2C2_SDA, UART8_TX, QSPI1_IO3, XMC_SDCLK, XMC_A18."
      },
      {
        "number": "83",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "84",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply voltage, 2.6 to 3.6 V."
      },
      {
        "number": "85",
        "name": "PD14",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FTf) with 20 mA sink capability; alternate functions TMR4_CH3, I2C3_SCL, UART8_RX, XMC_D0."
      },
      {
        "number": "86",
        "name": "PD15",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FTf) with 20 mA sink capability; alternate functions TMR4_CH4, I2C3_SDA, XMC_D1."
      },
      {
        "number": "87",
        "name": "PG2",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TMR20_CH3C, XMC_A12."
      },
      {
        "number": "88",
        "name": "PG3",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TMR20_BRK, XMC_A13."
      },
      {
        "number": "89",
        "name": "PG4",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions XMC_A14, XMC_SDBA0."
      },
      {
        "number": "90",
        "name": "PG5",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TMR20_EXT, XMC_A15, XMC_SDBA1."
      },
      {
        "number": "91",
        "name": "PG6",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions QSPI1_CS, XMC_INT2, DVP_D12."
      },
      {
        "number": "92",
        "name": "PG7",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions USART6_CK, XMC_INT3, DVP_D13."
      },
      {
        "number": "93",
        "name": "PG8",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions QSPI2_CS, USART6_RTS_DE, EMAC_PPS_OUT, XMC_SDCLK."
      },
      {
        "number": "94",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "95",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply voltage, 2.6 to 3.6 V."
      },
      {
        "number": "96",
        "name": "PC6",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TMR3_CH1, TMR8_CH1, I2C1_SCL, I2S2_MCK, USART6_TX, XMC_A0, SDIO1_D6, DVP_D0, XMC_D1."
      },
      {
        "number": "97",
        "name": "PC7",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TMR3_CH2, TMR8_CH2, I2C1_SDA, SPI2_SCK, I2S2_CK, I2S3_MCK, USART6_RX, XMC_A1, SDIO1_D7, DVP_D1."
      },
      {
        "number": "98",
        "name": "PC8",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TMR3_CH3, TMR8_CH3, I2S4_MCK, TMR20_CH3, UART8_TX, USART6_CK, QSPI1_IO2, XMC_A2, SDIO1_D0, DVP_D2."
      },
      {
        "number": "99",
        "name": "PC9",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions CLKOUT2, TMR3_CH4, TMR8_CH4, I2C3_SDA, UART8_RX, QSPI1_IO0, XMC_A3, OTGFS2_OE, SDIO1_D1, DVP_D3."
      },
      {
        "number": "100",
        "name": "PA8",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions CLKOUT1, TMR1_CH1, I2C3_SCL, USART1_CK, USART2_TX, OTGFS1_SOF, SDIO1_D1, XMC_A4."
      },
      {
        "number": "101",
        "name": "PA9",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TMR1_CH2, I2C3_SMBA, SPI2_SCK, I2S2_CK, USART1_TX, I2C1_SCL, OTGFS1_VBUS, SDIO1_D2, DVP_D0."
      },
      {
        "number": "102",
        "name": "PA10",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TMR1_CH3, SPI2_MOSI, I2S2_SD, I2S4_MCK, USART1_RX, I2C1_SDA, OTGFS1_ID, DVP_D1."
      },
      {
        "number": "103",
        "name": "PA11",
        "type": "bidirectional",
        "description": "Standard-level I/O (TC) with alternate functions TMR1_CH4, I2C2_SCL, SPI2_CS, I2S2_WS, SPI4_MISO, USART1_CTS, USART6_TX, CAN1_RX, OTGFS1_D-, DVP_D2."
      },
      {
        "number": "104",
        "name": "PA12",
        "type": "bidirectional",
        "description": "Standard-level I/O (TC) with alternate functions TMR1_EXT, I2C2_SDA, SPI2_MISO, USART1_RTS_DE, USART6_RX, CAN1_TX, OTGFS1_D+, DVP_D3."
      },
      {
        "number": "105",
        "name": "PA13",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions JTMS/SWDIO, IR_OUT, SPI3_MISO, OTGFS1_OE."
      },
      {
        "number": "106",
        "name": "PH2",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TMR5_CH1, I2C2_SCL, UART4_RX, QSPI1_IO0."
      },
      {
        "number": "107",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "108",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply voltage, 2.6 to 3.6 V."
      },
      {
        "number": "109",
        "name": "PA14",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions JTCK/SWCLK, SPI3_MOSI, I2S3_SD, USART2_TX."
      },
      {
        "number": "110",
        "name": "PA15",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions JTDI, TMR2_CH1, TMR2_EXT, SPI1_CS, I2S1_WS, SPI3_CS, I2S3_WS, USART1_TX, USART2_RX, QSPI2_IO1, QSPI1_IO2, XMC_NE2, XMC_NCE3."
      },
      {
        "number": "111",
        "name": "PC10",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TMR5_CH2, SPI3_SCK, I2S3_CK, USART3_TX, UART4_TX, QSPI1_IO1, SDIO1_D2, DVP_D8."
      },
      {
        "number": "112",
        "name": "PC11",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TMR5_CH3, I2S3_SDEXT, SPI3_MISO, USART3_RX, UART4_RX, QSPI1_CS, SDIO1_D3, DVP_D4, XMC_D2."
      },
      {
        "number": "113",
        "name": "PC12",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TMR11_CH1, I2C2_SDA, SPI3_MOSI, I2S3_SD, USART3_CK, UART5_TX, SDIO1_CK, DVP_D9, XMC_D3."
      },
      {
        "number": "114",
        "name": "PD0",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions SPI4_MISO, SPI3_MOSI, I2S3_SD, SPI2_CS, I2S2_WS, CAN1_RX, XMC_A5, XMC_D2."
      },
      {
        "number": "115",
        "name": "PD1",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions SPI2_SCK, I2S2_CK, SPI2_CS, I2S2_WS, CAN1_TX, XMC_A6, XMC_D3."
      },
      {
        "number": "116",
        "name": "PD2",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TMR3_EXT, USART3_RTS_DE, UART5_RX, XMC_A7, SDIO1_CMD, DVP_D11, XMC_NWE."
      },
      {
        "number": "117",
        "name": "PD3",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions SPI2_SCK, I2S2_CK, SPI2_MISO, USART2_CTS, QSPI1_SCK, XMC_A8, XMC_CLK, DVP_D5."
      },
      {
        "number": "118",
        "name": "PD4",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions SPI2_MOSI, I2S2_SD, USART2_RTS_DE, XMC_A9, XMC_NOE."
      },
      {
        "number": "119",
        "name": "PD5",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions USART2_TX, XMC_A10, XMC_NWE."
      },
      {
        "number": "120",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "121",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply voltage, 2.6 to 3.6 V."
      },
      {
        "number": "122",
        "name": "PD6",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions SPI3_MOSI, I2S3_SD, USART2_RX, XMC_A11, XMC_NWAIT, DVP_D10."
      },
      {
        "number": "123",
        "name": "PD7",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions USART2_CK, XMC_A12, XMC_NE1, XMC_NCE2."
      },
      {
        "number": "124",
        "name": "PG9",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions USART6_RX, QSPI1_IO2, XMC_NE2, XMC_NCE3, DVP_VSYNC."
      },
      {
        "number": "125",
        "name": "PG10",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions QSPI2_IO2, XMC_NE3, XMC_NCE4_1, DVP_D2."
      },
      {
        "number": "126",
        "name": "PG11",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions QSPI2_IO3, SPI4_SCK, I2S4_CK, CAN2_RX, EMAC_MII_TX_EN, EMAC_RMII_TX_EN, XMC_NCE4_2, DVP_D3."
      },
      {
        "number": "127",
        "name": "PG12",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions QSPI2_IO1, SPI4_MISO, USART6_RTS_DE, CAN2_TX, XMC_NE4."
      },
      {
        "number": "128",
        "name": "PG13",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions QSPI2_SCK, SPI4_MOSI, I2S4_SD, USART6_CTS, EMAC_MII_TXD0, EMAC_RMII_TXD0, XMC_A24."
      },
      {
        "number": "129",
        "name": "PG14",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions QSPI2_IO0, SPI4_CS, I2S4_WS, USART6_TX, QSPI1_IO3, EMAC_MII_TXD1, EMAC_RMII_TXD1, XMC_A25."
      },
      {
        "number": "130",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "131",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply voltage, 2.6 to 3.6 V."
      },
      {
        "number": "132",
        "name": "PG15",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions USART6_CTS, XMC_SDNCAS, DVP_D13."
      },
      {
        "number": "133",
        "name": "PB3",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FTf) with 20 mA sink capability; alternate functions JTDO/SWO, TMR2_CH2, I2C2_SDA, SPI1_SCK, I2S1_CK, SPI3_SCK, I2S3_CK, USART1_RX, UART7_RX, QSPI1_IO3, DVP_D4."
      },
      {
        "number": "134",
        "name": "PB4",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions JNTRST, TMR3_CH1, I2C3_SDA, SPI1_MISO, SPI3_MISO, I2S3_SDEXT, UART7_TX, SDIO1_D0, DVP_D5."
      },
      {
        "number": "135",
        "name": "PB5",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TMR3_CH2, I2C1_SMBA, SPI1_MOSI, I2S1_SD, SPI3_MOSI, I2S3_SD, USART1_CK, UART5_RX, CAN2_RX, EMAC_PPS_OUT, XMC_SDCKE1, DVP_D10, SDIO1_D3."
      },
      {
        "number": "136",
        "name": "PB6",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TMR4_CH1, I2C1_SCL, I2S1_MCK, SPI4_CS, I2S4_WS, USART1_TX, UART5_TX, CAN2_TX, QSPI1_CS, XMC_SDCS1, DVP_D5, SDIO1_D0."
      },
      {
        "number": "137",
        "name": "PB7",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TMR4_CH2, TMR8_BRK, I2C1_SDA, SPI4_SCK, I2S4_CK, USART1_RX, QSPI2_IO1, XMC_NADV, DVP_VSYNC, SDIO1_D0."
      },
      {
        "number": "138",
        "name": "BOOT0",
        "type": "input",
        "description": "Dedicated boot mode pin with built-in weak pull-down that cannot be disabled."
      },
      {
        "number": "139",
        "name": "PB8",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TMR2_CH1, TMR2_EXT, TMR4_CH3, TMR10_CH1, I2C1_SCL, SPI4_MISO, UART5_RX, CAN1_RX, QSPI2_CS, EMAC_MII_TXD3, SDIO1_D4, DVP_D6."
      },
      {
        "number": "140",
        "name": "PB9",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FTf) with 20 mA sink capability; alternate functions IR_OUT, TMR2_CH2, TMR4_CH4, TMR11_CH1, I2C1_SDA, SPI2_CS, I2S2_WS, SPI4_MOSI, I2S4_SD, I2C2_SDA, UART5_TX, CAN1_TX, QSPI1_CS, SDIO1_D5, DVP_D7."
      },
      {
        "number": "141",
        "name": "PE0",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TMR4_EXT, TMR20_EXT, UART8_RX, XMC_LB, XMC_SDDQML, DVP_D2."
      },
      {
        "number": "142",
        "name": "PE1",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TMR1_CH2C, TMR20_CH4, UART8_TX, XMC_UB, XMC_SDDQMH, DVP_D3."
      },
      {
        "number": "143",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "144",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply voltage, 2.6 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": null,
        "consensus": "skipped (clean text read)",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [],
        "pages_sent": 79,
        "cost_usd": 0.0103,
        "at": "2026-10-27T08:50:43"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/db4b0fe3cb2fe13951aac92c4deef420.pdf",
        "pages": 118,
        "sha256": "1dc0c659f12e7670",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 144,
        "described": 144,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "at32f437zmt7.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          22.0,
          22.0,
          1.5
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "b4d698da8bb7697b754adb5655c932342462d9b9341cdaa081b3604dbdf7559b",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "at32f437zmt7-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          22.0,
          22.0,
          1.5
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "f7d1aafa21c3457d178d09888116c0341e86126e1861dbb89d6bc199d7e9d6f0",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}