AT32F437VMT7

{
  "slug": "at32f437vmt7",
  "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",
    "at32f437vmt7",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "at32f437vmt7.kicad_sym",
    "at32f437vmt7.kicad_mod",
    "at32f437vmt7.glb",
    "at32f437vmt7.step",
    "at32f437vmt7.lbr",
    "docs/hero.png",
    "docs/at32f437vmt7-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "at32f437vmt7-hero.glb",
    "at32f437vmt7-hero.overlay.json",
    "at32f437vmt7-etched.glb"
  ],
  "component": {
    "mpn": "AT32F437VMT7",
    "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/8589784697812656128",
    "parts": {
      "symbol": "at32f437vmt7.kicad_sym",
      "footprint": "at32f437vmt7.kicad_mod",
      "model_3d": "at32f437vmt7-hero.glb",
      "model_3d_plain": "at32f437vmt7-etched.glb",
      "model_3d_step": "at32f437vmt7-etched.step",
      "model_3d_step_plain": "at32f437vmt7.step",
      "lbr": "at32f437vmt7.lbr"
    },
    "distributor_links": {
      "lcsc": "C3029583"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T04:08:53Z",
      "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; multiplexed functions include TMR3_EXT, SPI4_SCK, I2S4_CK, TMR20_CH1, QSPI1_IO2, XMC_SDNCAS, EMAC_MII_TXD3 and XMC_A23."
      },
      {
        "number": "2",
        "name": "PE3",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; functions include TMR3_CH1, TMR20_CH2, XMC_A19 and DVP_D9."
      },
      {
        "number": "3",
        "name": "PE4",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; functions include CLKOUT1, TMR3_CH2, SPI4_CS, I2S4_WS, TMR20_CH1C, XMC_A20 and DVP_D4."
      },
      {
        "number": "4",
        "name": "PE5",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; functions include TMR3_CH3, TMR9_CH1, SPI4_MISO, TMR20_CH2C, XMC_A21 and DVP_D6."
      },
      {
        "number": "5",
        "name": "PE6",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; functions include TMR3_CH4, TMR9_CH2, SPI4_MOSI, I2S4_SD, TMR20_CH3C, XMC_SDNRAS, XMC_A22 and DVP_D7."
      },
      {
        "number": "6",
        "name": "VBAT",
        "type": "power_in",
        "description": "Battery supply for the VBAT domain (LEXT, ERTC and backup registers) with a range of 1.62 to 3.6 V; it supplies that domain from VDD when no battery is present."
      },
      {
        "number": "7",
        "name": "PC13",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO on the battery domain, powered through a power switch that limits it to 3 mA as an output so it cannot drive LEDs; alternate functions include ERTC_AF1 and WKUP2."
      },
      {
        "number": "8",
        "name": "PC14 / LEXT_IN",
        "type": "bidirectional",
        "description": "Standard-level (TC) GPIO on the battery domain that doubles as the LEXT_IN 32.768 kHz oscillator input; power-switched and limited to 3 mA as an output."
      },
      {
        "number": "9",
        "name": "PC15 / LEXT_OUT",
        "type": "bidirectional",
        "description": "Standard-level (TC) GPIO on the battery domain that doubles as the LEXT_OUT 32.768 kHz oscillator output; power-switched and limited to 3 mA as an output."
      },
      {
        "number": "10",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "11",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply for the GPIO pins and internal LDO, specified at 2.6 to 3.6 V."
      },
      {
        "number": "12",
        "name": "PH0 / HEXT_IN",
        "type": "bidirectional",
        "description": "Standard-level (TC) GPIO with alternate function I2C1_SDA, and additional function HEXT_IN as the 4 to 25 MHz high-speed crystal oscillator input."
      },
      {
        "number": "13",
        "name": "PH1 / HEXT_OUT",
        "type": "bidirectional",
        "description": "Standard-level (TC) GPIO with alternate function I2C1_SCL, and additional function HEXT_OUT as the 4 to 25 MHz high-speed crystal oscillator output."
      },
      {
        "number": "14",
        "name": "NRST",
        "type": "bidirectional",
        "description": "Reset pin with built-in weak pull-up (R type) that acts as the active-low device reset input and internal reset output; the external reset network must keep it below VIL(NRST) max of 0.8 V to reset the MCU."
      },
      {
        "number": "15",
        "name": "PC0",
        "type": "bidirectional",
        "description": "5 V-tolerant analog-capable GPIO (FTa, only 5 V tolerant in input modes, analog-mode input must stay below VDD+0.3 V); alternate functions include I2C3_SCL, UART7_TX, SDIO2_D0 and XMC_SDNWE, additional ADC123_IN10 as an ADC fast channel."
      },
      {
        "number": "16",
        "name": "PC1",
        "type": "bidirectional",
        "description": "5 V-tolerant analog-capable GPIO (FTa, analog-mode input must stay below VDD+0.3 V); alternate functions include I2C3_SDA, SPI3_MOSI, I2S3_SD, SPI2_MOSI, I2S2_SD, UART7_RX, SDIO2_D1 and EMAC_MDC, additional ADC123_IN11 as an ADC fast channel."
      },
      {
        "number": "17",
        "name": "PC2",
        "type": "bidirectional",
        "description": "5 V-tolerant analog-capable GPIO (FTa, analog-mode input must stay below VDD+0.3 V); alternate functions include TMR20_CH2, SPI2_MISO, I2S2_SDEXT, UART8_TX, SDIO2_D2, EMAC_MII_TXD2, XMC_SDCS0 and XMC_NWE, additional ADC123_IN12 as an ADC fast channel."
      },
      {
        "number": "18",
        "name": "PC3",
        "type": "bidirectional",
        "description": "5 V-tolerant analog-capable GPIO (FTa, analog-mode input must stay below VDD+0.3 V); alternate functions include SPI2_MOSI, I2S2_SD, UART8_RX, QSPI2_IO1, SDIO2_D3, EMAC_MII_TX_CLK, XMC_SDCKE0 and XMC_A0, additional ADC123_IN13 as an ADC fast channel."
      },
      {
        "number": "19",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected (未连接) on the LQFP100 package."
      },
      {
        "number": "20",
        "name": "VSSA / VREF-",
        "type": "power_in",
        "description": "Analog ground and negative reference voltage for the ADC/DAC; VSSA must be connected to VSS."
      },
      {
        "number": "21",
        "name": "VREF+",
        "type": "power_in",
        "description": "Positive reference voltage input for the ADC and DAC; the DAC specifies VREF+ from 2.0 to 3.6 V and it may be internally tied to VDDA depending on package."
      },
      {
        "number": "22",
        "name": "VDDA",
        "type": "power_in",
        "description": "Analog supply for the ADC and DAC, 2.6 to 3.6 V, which must be the same as VDD and connected to it."
      },
      {
        "number": "23",
        "name": "PA0",
        "type": "bidirectional",
        "description": "5 V-tolerant analog-capable GPIO (FTa); alternate functions include TMR2_CH1, TMR2_EXT, TMR5_CH1, TMR8_EXT, I2C2_SCL, USART2_CTS, UART4_TX and EMAC_MII_CRS, additional ADC123_IN0 (ADC fast channel), ERTC_AF2 and WKUP1."
      },
      {
        "number": "24",
        "name": "PA1",
        "type": "bidirectional",
        "description": "5 V-tolerant analog-capable GPIO (FTa); alternate functions include TMR2_CH2, TMR5_CH2, I2C2_SDA, SPI4_MOSI, I2S4_SD, USART2_RTS_DE, UART4_RX, QSPI1_IO3, EMAC_MII_RX_CLK and EMAC_RMII_REF_CLK, additional ADC123_IN1 (ADC fast channel)."
      },
      {
        "number": "25",
        "name": "PA2",
        "type": "bidirectional",
        "description": "5 V-tolerant analog-capable GPIO (FTa); alternate functions include TMR2_CH3, TMR5_CH3, TMR9_CH1, USART2_TX, SDIO2_CK, EMAC_MDIO and XMC_D4, additional ADC123_IN2."
      },
      {
        "number": "26",
        "name": "PA3",
        "type": "bidirectional",
        "description": "5 V-tolerant analog-capable GPIO (FTa); alternate functions include TMR2_CH4, TMR5_CH4, TMR9_CH2, I2S2_MCK, USART2_RX, QSPI2_IO3, SDIO2_CMD, EMAC_MII_COL and XMC_D5, additional ADC123_IN3."
      },
      {
        "number": "27",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "28",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply for the GPIO pins and internal LDO, specified at 2.6 to 3.6 V."
      },
      {
        "number": "29",
        "name": "PA4",
        "type": "bidirectional",
        "description": "5 V-tolerant analog-capable GPIO (FTa); alternate functions include SPI1_CS, I2S1_WS, SPI3_CS, I2S3_WS, USART2_CK, USART6_TX, SDIO2_D4, SDIO2_D0, OTGFS2_SOF, DVP_HSYNC and XMC_D6, additional ADC12_IN4 and DAC1_OUT."
      },
      {
        "number": "30",
        "name": "PA5",
        "type": "bidirectional",
        "description": "5 V-tolerant analog-capable GPIO (FTa); alternate functions include TMR2_CH1, TMR2_EXT, TMR8_CH1C, SPI1_SCK, I2S1_CK, USART6_RX, QSPI2_IO2, SDIO2_D5, SDIO2_D1 and XMC_D7, additional ADC12_IN5 and DAC2_OUT."
      },
      {
        "number": "31",
        "name": "PA6",
        "type": "bidirectional",
        "description": "5 V-tolerant analog-capable GPIO (FTa); alternate functions include TMR1_BRK, TMR3_CH1, TMR8_BRK, SPI1_MISO, I2S2_MCK, USART3_CTS, TMR13_CH1, QSPI1_IO0, SDIO2_D2, SDIO1_CMD, DVP_PCLK and SDIO2_D6, additional ADC12_IN6."
      },
      {
        "number": "32",
        "name": "PA7",
        "type": "bidirectional",
        "description": "5 V-tolerant analog-capable GPIO (FTa); alternate functions include 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 and SDIO2_D7, additional ADC12_IN7."
      },
      {
        "number": "33",
        "name": "PC4",
        "type": "bidirectional",
        "description": "5 V-tolerant analog-capable GPIO (FTa); alternate functions include TMR9_CH1, I2S1_MCK, USART3_TX, QSPI1_IO2, EMAC_MII_RXD0, EMAC_RMII_RXD0, XMC_SDCS0, SDIO2_CK and XMC_NE4, additional ADC12_IN14."
      },
      {
        "number": "34",
        "name": "PC5",
        "type": "bidirectional",
        "description": "5 V-tolerant analog-capable GPIO (FTa); alternate functions include TMR9_CH2, I2C1_SMBA, USART3_RX, QSPI1_IO3, EMAC_MII_RXD1, EMAC_RMII_RXD1, XMC_SDCKE0, SDIO2_CMD and XMC_NOE, additional ADC12_IN15."
      },
      {
        "number": "35",
        "name": "PB0",
        "type": "bidirectional",
        "description": "5 V-tolerant analog-capable GPIO (FTa); alternate functions include TMR1_CH2C, TMR3_CH3, TMR8_CH2C, I2S1_MCK, USART2_RX, SPI3_MOSI, I2S3_SD, USART3_CK, QSPI2_IO0, QSPI1_IO0, EMAC_MII_RXD2 and SDIO1_D1, additional ADC12_IN8."
      },
      {
        "number": "36",
        "name": "PB1",
        "type": "bidirectional",
        "description": "5 V-tolerant analog-capable GPIO (FTa); alternate functions include TMR1_CH3C, TMR3_CH4, TMR8_CH3C, SPI2_SCK, I2S2_CK, USART3_RTS_DE, QSPI1_SCK, QSPI2_SCK, EMAC_MII_RXD3 and SDIO1_D2, additional ADC12_IN9."
      },
      {
        "number": "37",
        "name": "PB2 / BOOT1",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO that also serves as the BOOT1 boot-mode select pin; alternate functions include TMR2_CH4, TMR20_CH1, I2C3_SMBA, SPI3_MOSI, I2S3_SD, QSPI1_SCK and SDIO1_CK."
      },
      {
        "number": "38",
        "name": "PE7",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; functions include TMR1_EXT, UART7_RX, QSPI2_IO0 and XMC_D4."
      },
      {
        "number": "39",
        "name": "PE8",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; functions include TMR1_CH1C, UART4_TX, UART7_TX, QSPI2_IO1 and XMC_D5."
      },
      {
        "number": "40",
        "name": "PE9",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; functions include TMR1_CH1, UART4_RX, QSPI2_IO2 and XMC_D6."
      },
      {
        "number": "41",
        "name": "PE10",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; functions include TMR1_CH2C, UART5_TX, QSPI2_IO3 and XMC_D7."
      },
      {
        "number": "42",
        "name": "PE11",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; functions include TMR1_CH2, SPI4_CS, I2S4_WS, UART5_RX and XMC_D8."
      },
      {
        "number": "43",
        "name": "PE12",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; functions include TMR1_CH3C, SPI1_CS, I2S1_WS, SPI4_SCK, I2S4_CK and XMC_D9."
      },
      {
        "number": "44",
        "name": "PE13",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; functions include TMR1_CH3, SPI1_SCK, I2S1_CK, SPI4_MISO and XMC_D10."
      },
      {
        "number": "45",
        "name": "PE14",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; functions include TMR1_CH4, SPI1_MISO, SPI4_MOSI, I2S4_SD and XMC_D11."
      },
      {
        "number": "46",
        "name": "PE15",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; functions include TMR1_BRK, SPI1_MOSI, I2S1_SD and XMC_D12."
      },
      {
        "number": "47",
        "name": "PB10",
        "type": "bidirectional",
        "description": "5 V-tolerant GPIO (FTf, also rated for 20 mA sink); functions include TMR2_CH3, I2C2_SCL, SPI2_SCK, I2S2_CK, I2S3_MCK, USART3_TX, QSPI1_CS, QSPI1_IO1, EMAC_MII_RX_ER, SDIO1_D7 and XMC_NOE."
      },
      {
        "number": "48",
        "name": "PB11",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; functions include TMR2_CH4, TMR5_CH4, I2C2_SDA, USART3_RX, QSPI1_IO0, EMAC_MII_TX_EN and EMAC_RMII_TX_EN."
      },
      {
        "number": "49",
        "name": "PH3",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; functions include TMR5_CH2, I2C2_SDA, UART4_TX and QSPI1_IO1."
      },
      {
        "number": "50",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply for the GPIO pins and internal LDO, specified at 2.6 to 3.6 V."
      },
      {
        "number": "51",
        "name": "PB12",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; functions include 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, OTGFS2_ID and XMC_D13."
      },
      {
        "number": "52",
        "name": "PB13",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; functions include TMR1_CH1C, I2C3_SMBA, SPI2_SCK, I2S2_CK, SPI4_SCK, I2S4_CK, I2C3_SCL, USART3_CTS, CAN2_TX, EMAC_MII_TXD1 and OTGFS2_VBUS."
      },
      {
        "number": "53",
        "name": "PB14",
        "type": "bidirectional",
        "description": "Standard-level (TC) GPIO, not 5 V tolerant; functions include TMR1_CH2C, TMR8_CH2C, I2C3_SDA, SPI2_MISO, I2S2_SDEXT, USART3_RTS_DE, TMR12_CH1, OTGFS2_D-, SDIO1_D6 and XMC_D0."
      },
      {
        "number": "54",
        "name": "PB15",
        "type": "bidirectional",
        "description": "Standard-level (TC) GPIO; functions include ERTC_REFIN, TMR1_CH3C, TMR8_CH3C, I2C3_SCL, SPI2_MOSI, I2S2_SD, TMR12_CH2, OTGFS2_D+ and SDIO1_CK."
      },
      {
        "number": "55",
        "name": "PD8",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; functions include USART3_TX, EMAC_MII_RX_DV, EMAC_RMII_CRS_DV and XMC_D13."
      },
      {
        "number": "56",
        "name": "PD9",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; functions include USART3_RX, EMAC_MII_RXD0, MAC_RMII_RXD0 (as printed in the datasheet) and XMC_D14."
      },
      {
        "number": "57",
        "name": "PD10",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; functions include USART3_CK, EMAC_MII_RXD1, EMAC_RMII_RXD1 and XMC_D15."
      },
      {
        "number": "58",
        "name": "PD11",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; functions include I2C2_SMBA, USART3_CTS, QSPI1_IO0, XMC_A14, XMC_SDBA0, EMAC_MII_RXD2 and XMC_A16_CLE."
      },
      {
        "number": "59",
        "name": "PD12",
        "type": "bidirectional",
        "description": "5 V-tolerant GPIO (FTf, also rated for 20 mA sink); functions include TMR4_CH1, I2C2_SCL, USART3_RTS_DE, QSPI1_IO1, XMC_A15, XMC_SDBA1, EMAC_MII_RXD3 and XMC_A17_ALE."
      },
      {
        "number": "60",
        "name": "PD13",
        "type": "bidirectional",
        "description": "5 V-tolerant GPIO (FTf, also rated for 20 mA sink); functions include TMR4_CH2, I2C2_SDA, UART8_TX, QSPI1_IO3, XMC_SDCLK and XMC_A18."
      },
      {
        "number": "61",
        "name": "PD14",
        "type": "bidirectional",
        "description": "5 V-tolerant GPIO (FTf, also rated for 20 mA sink); functions include TMR4_CH3, I2C3_SCL, UART8_RX and XMC_D0."
      },
      {
        "number": "62",
        "name": "PD15",
        "type": "bidirectional",
        "description": "5 V-tolerant GPIO (FTf, also rated for 20 mA sink); functions include TMR4_CH4, I2C3_SDA and XMC_D1."
      },
      {
        "number": "63",
        "name": "PC6",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; functions include TMR3_CH1, TMR8_CH1, I2C1_SCL, I2S2_MCK, USART6_TX, XMC_A0, SDIO1_D6, DVP_D0 and XMC_D1."
      },
      {
        "number": "64",
        "name": "PC7",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; functions include TMR3_CH2, TMR8_CH2, I2C1_SDA, SPI2_SCK, I2S2_CK, I2S3_MCK, USART6_RX, XMC_A1, SDIO1_D7 and DVP_D1."
      },
      {
        "number": "65",
        "name": "PC8",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; functions include TMR3_CH3, TMR8_CH3, I2S4_MCK, TMR20_CH3, UART8_TX, USART6_CK, QSPI1_IO2, XMC_A2, SDIO1_D0 and DVP_D2."
      },
      {
        "number": "66",
        "name": "PC9",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; functions include CLKOUT2, TMR3_CH4, TMR8_CH4, I2C3_SDA, UART8_RX, QSPI1_IO0, XMC_A3, OTGFS2_OE, SDIO1_D1 and DVP_D3."
      },
      {
        "number": "67",
        "name": "PA8",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; functions include CLKOUT1, TMR1_CH1, I2C3_SCL, USART1_CK, USART2_TX, OTGFS1_SOF, SDIO1_D1 and XMC_A4."
      },
      {
        "number": "68",
        "name": "PA9",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; functions include TMR1_CH2, I2C3_SMBA, SPI2_SCK, I2S2_CK, USART1_TX, I2C1_SCL, OTGFS1_VBUS, SDIO1_D2 and DVP_D0."
      },
      {
        "number": "69",
        "name": "PA10",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; functions include TMR1_CH3, SPI2_MOSI, I2S2_SD, I2S4_MCK, USART1_RX, I2C1_SDA, OTGFS1_ID and DVP_D1."
      },
      {
        "number": "70",
        "name": "PA11",
        "type": "bidirectional",
        "description": "Standard-level (TC) GPIO, not 5 V tolerant; functions include TMR1_CH4, I2C2_SCL, SPI2_CS, I2S2_WS, SPI4_MISO, USART1_CTS, USART6_TX, CAN1_RX, OTGFS1_D- and DVP_D2."
      },
      {
        "number": "71",
        "name": "PA12",
        "type": "bidirectional",
        "description": "Standard-level (TC) GPIO, not 5 V tolerant; functions include TMR1_EXT, I2C2_SDA, SPI2_MISO, USART1_RTS_DE, USART6_RX, CAN1_TX, OTGFS1_D+ and DVP_D3."
      },
      {
        "number": "72",
        "name": "PA13",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO whose reset function is JTMS/SWDIO; other functions include IR_OUT, SPI3_MISO and OTGFS1_OE."
      },
      {
        "number": "73",
        "name": "PH2",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; functions include TMR5_CH1, I2C2_SCL, UART4_RX and QSPI1_IO0."
      },
      {
        "number": "74",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "75",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply for the GPIO pins and internal LDO, specified at 2.6 to 3.6 V."
      },
      {
        "number": "76",
        "name": "PA14",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO whose reset function is JTCK/SWCLK; other functions include SPI3_MOSI, I2S3_SD and USART2_TX."
      },
      {
        "number": "77",
        "name": "PA15",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO whose reset function is JTDI; other functions include TMR2_CH1, TMR2_EXT, SPI1_CS, I2S1_WS, SPI3_CS, I2S3_WS, USART1_TX, USART2_RX, QSPI2_IO1, QSPI1_IO2, XMC_NE2 and XMC_NCE3."
      },
      {
        "number": "78",
        "name": "PC10",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; functions include TMR5_CH2, SPI3_SCK, I2S3_CK, USART3_TX, UART4_TX, QSPI1_IO1, SDIO1_D2 and DVP_D8."
      },
      {
        "number": "79",
        "name": "PC11",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; functions include TMR5_CH3, I2S3_SDEXT, SPI3_MISO, USART3_RX, UART4_RX, QSPI1_CS, SDIO1_D3, DVP_D4 and XMC_D2."
      },
      {
        "number": "80",
        "name": "PC12",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; functions include TMR11_CH1, I2C2_SDA, SPI3_MOSI, I2S3_SD, USART3_CK, UART5_TX, SDIO1_CK, DVP_D9 and XMC_D3."
      },
      {
        "number": "81",
        "name": "PD0",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; functions include SPI4_MISO, SPI3_MOSI, I2S3_SD, SPI2_CS, I2S2_WS, CAN1_RX, XMC_A5 and XMC_D2."
      },
      {
        "number": "82",
        "name": "PD1",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; functions include SPI2_SCK, I2S2_CK, SPI2_CS, I2S2_WS, CAN1_TX, XMC_A6 and XMC_D3."
      },
      {
        "number": "83",
        "name": "PD2",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; functions include TMR3_EXT, USART3_RTS_DE, UART5_RX, XMC_A7, SDIO1_CMD, DVP_D11 and XMC_NWE."
      },
      {
        "number": "84",
        "name": "PD3",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; functions include SPI2_SCK, I2S2_CK, SPI2_MISO, USART2_CTS, QSPI1_SCK, XMC_A8, XMC_CLK and DVP_D5."
      },
      {
        "number": "85",
        "name": "PD4",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; functions include SPI2_MOSI, I2S2_SD, USART2_RTS_DE, XMC_A9 and XMC_NOE."
      },
      {
        "number": "86",
        "name": "PD5",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; functions include USART2_TX, XMC_A10 and XMC_NWE."
      },
      {
        "number": "87",
        "name": "PD6",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; functions include SPI3_MOSI, I2S3_SD, USART2_RX, XMC_A11, XMC_NWAIT and DVP_D10."
      },
      {
        "number": "88",
        "name": "PD7",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; functions include USART2_CK, XMC_A12, XMC_NE1 and XMC_NCE2."
      },
      {
        "number": "89",
        "name": "PB3 / JTDO",
        "type": "bidirectional",
        "description": "5 V-tolerant GPIO (FTf, also rated for 20 mA sink) whose reset function is JTDO; other functions include TMR2_CH2, I2C2_SDA, SPI1_SCK, I2S1_CK, SPI3_SCK, I2S3_CK, USART1_RX, UART7_RX, QSPI1_IO3, DVP_D4 and SWO."
      },
      {
        "number": "90",
        "name": "PB4 / NJTRST",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO whose reset function is NJTRST; other functions include TMR3_CH1, I2C3_SDA, SPI1_MISO, SPI3_MISO, I2S3_SDEXT, UART7_TX, SDIO1_D0 and DVP_D5."
      },
      {
        "number": "91",
        "name": "PB5",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; functions include 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 and SDIO1_D3."
      },
      {
        "number": "92",
        "name": "PB6",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; functions include TMR4_CH1, I2C1_SCL, I2S1_MCK, SPI4_CS, I2S4_WS, USART1_TX, UART5_TX, CAN2_TX, QSPI1_CS, XMC_SDCS1, DVP_D5 and SDIO1_D0."
      },
      {
        "number": "93",
        "name": "PB7",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; functions include TMR4_CH2, TMR8_BRK, I2C1_SDA, SPI4_SCK, I2S4_CK, USART1_RX, QSPI2_IO1, XMC_NADV, DVP_VSYNC and SDIO1_D0."
      },
      {
        "number": "94",
        "name": "BOOT0",
        "type": "input",
        "description": "Dedicated BOOT0 boot-mode input with a built-in weak pull-down that cannot be disabled."
      },
      {
        "number": "95",
        "name": "PB8",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; functions include TMR2_CH1, TMR2_EXT, TMR4_CH3, TMR10_CH1, I2C1_SCL, SPI4_MISO, UART5_RX, CAN1_RX, QSPI2_CS, EMAC_MII_TXD3, SDIO1_D4 and DVP_D6."
      },
      {
        "number": "96",
        "name": "PB9",
        "type": "bidirectional",
        "description": "5 V-tolerant GPIO (FTf, also rated for 20 mA sink); functions include 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 and DVP_D7."
      },
      {
        "number": "97",
        "name": "PE0",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; functions include TMR4_EXT, TMR20_EXT, UART8_RX, XMC_LB, XMC_SDDQML and DVP_D2."
      },
      {
        "number": "98",
        "name": "PE1",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; functions include TMR1_CH2C, TMR20_CH4, UART8_TX, XMC_UB, XMC_SDDQMH and DVP_D3."
      },
      {
        "number": "99",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "100",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply for the GPIO pins and internal LDO, specified at 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": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Package variant check: MPN AT32F437VMT7 decodes as V = 100 pins, M = 4 MB flash, T = LQFP, 7 = -40 t; Pin 56 (PD9) alternate function is printed as 'MAC_RMII_RXD0' in the datasheet table; it is most lik; Pin 19 is printed as '未连接' (not connected) and is marked unconnected."
        ],
        "pages_sent": 79,
        "cost_usd": 0.3914,
        "at": "2026-10-18T04:07:33"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589784697812656128",
        "pages": 118,
        "sha256": "1dc0c659f12e7670",
        "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": "at32f437vmt7.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": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "at32f437vmt7-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": "0e457e0b4be2a170a74e3b4e3107a6dc17d60e177d0891ae01553971cca3baf8",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}