STM32H7A3ZIT6Q

{
  "schema_version": 1,
  "type": "component",
  "slug": "stm32h7a3zit6q",
  "title": "STM32H7A3ZIT6Q",
  "brief": "STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-144(20x20). Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "embedded processors & controllers",
    "stm32h7a3zit6q",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "STM32H7A3ZIT6Q",
    "manufacturer": "STMicroelectronics",
    "package": "LQFP-144(20x20)",
    "pin_count": 144,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588939911244222464",
    "parts": {
      "symbol": "stm32h7a3zit6q.kicad_sym",
      "footprint": "stm32h7a3zit6q.kicad_mod",
      "model_3d": "stm32h7a3zit6q-hero.glb",
      "model_3d_plain": "stm32h7a3zit6q.glb",
      "model_3d_step": "stm32h7a3zit6q-etched.step",
      "model_3d_step_plain": "stm32h7a3zit6q.step",
      "lbr": "stm32h7a3zit6q.lbr"
    },
    "distributor_links": {
      "lcsc": "C1236690",
      "digikey": "497-STM32H7A3ZIT6Q-ND",
      "mouser": "511-STM32H7A3ZIT6Q"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T21:47:14Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "497-STM32H7A3ZIT6Q-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "511-STM32H7A3ZIT6Q",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "PE2",
        "type": "bidirectional",
        "description": "FT_h2 I/O (5 V tolerant, high-speed low-voltage group h2, mainly FMC); alternate functions include TRACECLK, SAI1_CK1, SPI4_SCK, OCTOSPIM_P1_IO2, USART10_RX and FMC_A23."
      },
      {
        "number": "2",
        "name": "PE3",
        "type": "bidirectional",
        "description": "FT_h2 I/O (5 V tolerant, group h2); alternate functions include TRACED0, TIM15_BKIN, SAI1_SD_B, USART10_TX and FMC_A19."
      },
      {
        "number": "3",
        "name": "PE4",
        "type": "bidirectional",
        "description": "FT_h2 I/O (5 V tolerant, group h2); alternate functions include TRACED1, SAI1_D2, DFSDM1_DATIN3, TIM15_CH1N, SPI4_NSS, FMC_A20, DCMI_D4/PSSI_D4 and LCD_B0."
      },
      {
        "number": "4",
        "name": "PE5",
        "type": "bidirectional",
        "description": "FT_h2 I/O (5 V tolerant, group h2); alternate functions include TRACED2, SAI1_CK2, DFSDM1_CKIN3, TIM15_CH1, SPI4_MISO, FMC_A21, DCMI_D6/PSSI_D6 and LCD_G0."
      },
      {
        "number": "5",
        "name": "PE6",
        "type": "bidirectional",
        "description": "FT_h2 I/O (5 V tolerant, group h2); alternate functions include TRACED3, TIM1_BKIN2, SAI1_D1, TIM15_CH2, SPI4_MOSI, FMC_A22, DCMI_D7/PSSI_D7 and LCD_G1."
      },
      {
        "number": "6",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference pin of the digital supply domain."
      },
      {
        "number": "7",
        "name": "VDD",
        "type": "power_in",
        "description": "Standard operating supply, 1.62 V minimum to 3.6 V maximum (Table 22)."
      },
      {
        "number": "8",
        "name": "VBAT",
        "type": "power_in",
        "description": "Backup-domain supply, 1.2 V minimum to 3.6 V maximum (Table 22)."
      },
      {
        "number": "9",
        "name": "PC13",
        "type": "bidirectional",
        "description": "FT I/O (5 V tolerant); additional functions TAMP_IN1/TAMP_OUT2/TAMP_OUT3, RTC_OUT1/RTC_TS and WKUP3."
      },
      {
        "number": "10",
        "name": "PC14-OSC32_IN",
        "type": "bidirectional",
        "description": "FT I/O (5 V tolerant) that also serves as the LSE (32.768 kHz) oscillator input OSC32_IN."
      },
      {
        "number": "11",
        "name": "PC15-OSC32_OUT",
        "type": "bidirectional",
        "description": "FT I/O (5 V tolerant) that also serves as the LSE (32.768 kHz) oscillator output OSC32_OUT."
      },
      {
        "number": "12",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference pin of the digital supply domain."
      },
      {
        "number": "13",
        "name": "VDD",
        "type": "power_in",
        "description": "Standard operating supply, 1.62 V minimum to 3.6 V maximum (Table 22)."
      },
      {
        "number": "14",
        "name": "VSSSMPS",
        "type": "power_in",
        "description": "Ground pin of the internal SMPS step-down converter."
      },
      {
        "number": "15",
        "name": "VLXSMPS",
        "type": "power_out",
        "description": "Switching output node of the SMPS step-down converter, connected to the external inductor."
      },
      {
        "number": "16",
        "name": "VDDSMPS",
        "type": "power_in",
        "description": "Supply of the internal SMPS step-down converter, 1.62 V minimum to 3.6 V maximum (VDDSMPS = VDD)."
      },
      {
        "number": "17",
        "name": "VFBSMPS",
        "type": "input",
        "description": "Feedback input of the SMPS step-down converter used to regulate its output."
      },
      {
        "number": "18",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference pin of the digital supply domain."
      },
      {
        "number": "19",
        "name": "VDD",
        "type": "power_in",
        "description": "Standard operating supply, 1.62 V minimum to 3.6 V maximum (Table 22)."
      },
      {
        "number": "20",
        "name": "PF6",
        "type": "bidirectional",
        "description": "FT_h1 I/O (5 V tolerant, group h1); alternate functions include TIM16_CH1, SPI5_NSS, SAI1_SD_B, UART7_Rx and OCTOSPIM_P1_IO3."
      },
      {
        "number": "21",
        "name": "PF7",
        "type": "bidirectional",
        "description": "FT_h1 I/O (5 V tolerant, group h1); alternate functions include TIM17_CH1, SPI5_SCK, SAI1_MCLK_B, UART7_Tx and OCTOSPIM_P1_IO2."
      },
      {
        "number": "22",
        "name": "PF8",
        "type": "bidirectional",
        "description": "FT_h1 I/O (5 V tolerant, group h1); alternate functions include TIM16_CH1N, SPI5_MISO, SAI1_SCK_B, UART7_RTS, TIM13_CH1 and OCTOSPIM_P1_IO0."
      },
      {
        "number": "23",
        "name": "PF9",
        "type": "bidirectional",
        "description": "FT_h1 I/O (5 V tolerant, group h1); alternate functions include TIM17_CH1N, SPI5_MOSI, SAI1_FS_B, UART7_CTS, TIM14_CH1 and OCTOSPIM_P1_IO1."
      },
      {
        "number": "24",
        "name": "PF10",
        "type": "bidirectional",
        "description": "FT_h1 I/O (5 V tolerant, group h1); alternate functions include TIM16_BKIN, SAI1_D3, PSSI_D15, OCTOSPIM_P1_CLK, DCMI_D11/PSSI_D11 and LCD_DE."
      },
      {
        "number": "25",
        "name": "PH0-OSC_IN",
        "type": "bidirectional",
        "description": "FT I/O (5 V tolerant) that also serves as the HSE (4-50 MHz) oscillator input OSC_IN."
      },
      {
        "number": "26",
        "name": "PH1-OSC_OUT",
        "type": "bidirectional",
        "description": "FT I/O (5 V tolerant) that also serves as the HSE (4-50 MHz) oscillator output OSC_OUT."
      },
      {
        "number": "27",
        "name": "NRST",
        "type": "bidirectional",
        "description": "Bidirectional reset pin with an embedded weak pull-up resistor."
      },
      {
        "number": "28",
        "name": "PC0",
        "type": "bidirectional",
        "description": "FT_a I/O (5 V tolerant, analog option supplied by VDDA); alternate functions include DFSDM1_CKIN0, SAI2_FS_B, FMC_A25, OTG_HS_ULPI_STP and LCD_G2; additional function ADC12_INP10."
      },
      {
        "number": "29",
        "name": "PC1",
        "type": "bidirectional",
        "description": "FT_ah0 I/O (5 V tolerant, analog option and high-speed low-voltage group h0 on VDDMMC); alternate functions include TRACED0, SAI1_D1, SPI2_MOSI/I2S2_SDO, SDMMC2_CK and OCTOSPIM_P1_IO4; additional functions ADC12_INP11, ADC12_INN10, TAMP_IN3 and WKUP6."
      },
      {
        "number": "30",
        "name": "PC2_C",
        "type": "passive",
        "description": "TT_a analog pad (3.3 V tolerant); it is a separate pad from PC2 and connects to it only through the SYSCFG-configured analog switch; additional functions ADC2_INP0 and ADC2_INN1."
      },
      {
        "number": "31",
        "name": "PC3_C",
        "type": "passive",
        "description": "TT_a analog pad (3.3 V tolerant); it is a separate pad from PC3 and connects to it only through the SYSCFG-configured analog switch; additional function ADC2_INP1."
      },
      {
        "number": "32",
        "name": "VDD",
        "type": "power_in",
        "description": "Standard operating supply, 1.62 V minimum to 3.6 V maximum (Table 22)."
      },
      {
        "number": "33",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference pin of the digital supply domain."
      },
      {
        "number": "34",
        "name": "VSSA",
        "type": "power_in",
        "description": "Ground reference pin of the analog domain (ADC, DAC, OPAMP, COMP, VREFBUF)."
      },
      {
        "number": "35",
        "name": "VREF+",
        "type": "power_in",
        "description": "Positive reference voltage input for the ADC and DAC."
      },
      {
        "number": "36",
        "name": "VDDA",
        "type": "power_in",
        "description": "Analog supply: 1.62 V minimum when ADC or COMP is used (1.8 V for DAC, 2.0 V for OPAMP), 3.6 V maximum."
      },
      {
        "number": "37",
        "name": "PA0",
        "type": "bidirectional",
        "description": "FT_a I/O (5 V tolerant, analog option); alternate functions include TIM2_CH1/TIM2_ETR, TIM5_CH1, TIM8_ETR, USART2_CTS, UART4_TX and SDMMC2_CMD; additional functions ADC1_INP16 and WKUP1."
      },
      {
        "number": "38",
        "name": "PA1",
        "type": "bidirectional",
        "description": "FT_ah1 I/O (5 V tolerant, analog option and high-speed low-voltage group h1 for OCTOSPI); alternate functions include TIM2_CH2, TIM5_CH2, LPTIM3_OUT, USART2_RTS, UART4_RX and OCTOSPIM_P1_IO3; additional functions ADC1_INP17 and ADC1_INN16."
      },
      {
        "number": "39",
        "name": "PA2",
        "type": "bidirectional",
        "description": "FT_a I/O (5 V tolerant, analog option); alternate functions include TIM2_CH3, TIM5_CH3, TIM15_CH1, USART2_TX, MDIOS_MDIO and LCD_R1; additional functions ADC1_INP14 and WKUP2."
      },
      {
        "number": "40",
        "name": "PA3",
        "type": "bidirectional",
        "description": "FT_ah1 I/O (5 V tolerant, analog option and group h1); alternate functions include TIM2_CH4, TIM5_CH4, OCTOSPIM_P1_CLK, TIM15_CH2, USART2_RX, OTG_HS_ULPI_D0 and LCD_B5; additional function ADC1_INP15."
      },
      {
        "number": "41",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference pin of the digital supply domain."
      },
      {
        "number": "42",
        "name": "VDD",
        "type": "power_in",
        "description": "Standard operating supply, 1.62 V minimum to 3.6 V maximum (Table 22)."
      },
      {
        "number": "43",
        "name": "PA4",
        "type": "bidirectional",
        "description": "TT_a I/O (3.3 V tolerant, analog option); alternate functions include TIM5_ETR, SPI1_NSS/I2S1_WS, SPI3_NSS/I2S3_WS, USART2_CK, DCMI_HSYNC/PSSI_DE and LCD_VSYNC; additional functions ADC1_INP18 and DAC1_OUT1."
      },
      {
        "number": "44",
        "name": "PA5",
        "type": "bidirectional",
        "description": "TT_ah0 I/O (3.3 V tolerant, analog option and group h0); alternate functions include TIM2_CH1/TIM2_ETR, TIM8_CH1N, SPI1_SCK/I2S1_CK, OTG_HS_ULPI_CK and LCD_R4; additional functions ADC1_INP19, ADC1_INN18 and DAC1_OUT2."
      },
      {
        "number": "45",
        "name": "PA6",
        "type": "bidirectional",
        "description": "TT_ah1 I/O (3.3 V tolerant, analog option and group h1); alternate functions include TIM1_BKIN, TIM3_CH1, TIM8_BKIN, SPI1_MISO/I2S1_SDI, OCTOSPIM_P1_IO3 and LCD_G2; additional functions ADC12_INP3 and DAC2_OUT1."
      },
      {
        "number": "46",
        "name": "PA7",
        "type": "bidirectional",
        "description": "FT_ah1 I/O (5 V tolerant, analog option and group h1); alternate functions include TIM1_CH1N, TIM3_CH2, TIM8_CH1N, SPI1_MOSI/I2S1_SDO, OCTOSPIM_P1_IO2 and FMC_SDNWE; additional functions ADC12_INP7, ADC12_INN3 and OPAMP1_VINM."
      },
      {
        "number": "47",
        "name": "PC4",
        "type": "bidirectional",
        "description": "FT_a I/O (5 V tolerant, analog option); alternate functions include DFSDM1_CKIN2, I2S1_MCK, SPDIFRX1_IN2, FMC_SDNE0 and LCD_R7; additional functions ADC12_INP4, OPAMP1_VOUT and COMP1_INM."
      },
      {
        "number": "48",
        "name": "PC5",
        "type": "bidirectional",
        "description": "FT_ah1 I/O (5 V tolerant, analog option and group h1); alternate functions include SAI1_D3, DFSDM1_DATIN2, PSSI_D15, SPDIFRX1_IN3, OCTOSPIM_P1_DQS, FMC_SDCKE0, COMP1_OUT and LCD_DE; additional functions ADC12_INP8, ADC12_INN4 and OPAMP1_VINM."
      },
      {
        "number": "49",
        "name": "PB0",
        "type": "bidirectional",
        "description": "FT_ah0 I/O (5 V tolerant, analog option and group h0); alternate functions include TIM1_CH2N, TIM3_CH3, TIM8_CH2N, UART4_CTS, LCD_R3, OTG_HS_ULPI_D1 and OCTOSPIM_P1_IO1; additional functions ADC12_INP9, ADC12_INN5, OPAMP1_VINP and COMP1_INP."
      },
      {
        "number": "50",
        "name": "PB1",
        "type": "bidirectional",
        "description": "FT_ah0 I/O (5 V tolerant, analog option and group h0); alternate functions include TIM1_CH3N, TIM3_CH4, TIM8_CH3N, DFSDM1_DATIN1, LCD_R6, OTG_HS_ULPI_D2 and OCTOSPIM_P1_IO0; additional functions ADC12_INP5 and COMP1_INM."
      },
      {
        "number": "51",
        "name": "PB2",
        "type": "bidirectional",
        "description": "FT_ah1 I/O (5 V tolerant, analog option and group h1); alternate functions include RTC_OUT2, SAI1_D1, DFSDM1_CKIN1, SPI3_MOSI/I2S3_SDO and OCTOSPIM_P1_CLK; additional function COMP1_INP."
      },
      {
        "number": "52",
        "name": "PF11",
        "type": "bidirectional",
        "description": "FT_ah1 I/O (5 V tolerant, analog option and group h1); alternate functions include SPI5_MOSI, OCTOSPIM_P1_NCLK, SAI2_SD_B, FMC_SDNRAS and DCMI_D12/PSSI_D12; additional function ADC1_INP2."
      },
      {
        "number": "53",
        "name": "PF14",
        "type": "bidirectional",
        "description": "FT_fah2 I/O (5 V tolerant, FM+ I2C option, analog option and group h2); alternate functions include DFSDM1_CKIN6, I2C4_SCL and FMC_A8; additional functions ADC2_INP6 and ADC2_INN2."
      },
      {
        "number": "54",
        "name": "PF15",
        "type": "bidirectional",
        "description": "FT_fh2 I/O (5 V tolerant, FM+ I2C option and group h2); alternate functions include I2C4_SDA and FMC_A9."
      },
      {
        "number": "55",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference pin of the digital supply domain."
      },
      {
        "number": "56",
        "name": "VDD",
        "type": "power_in",
        "description": "Standard operating supply, 1.62 V minimum to 3.6 V maximum (Table 22)."
      },
      {
        "number": "57",
        "name": "PE7",
        "type": "bidirectional",
        "description": "FT_ah2 I/O (5 V tolerant, analog option and group h2); alternate functions include TIM1_ETR, DFSDM1_DATIN2, UART7_Rx, OCTOSPIM_P1_IO4 and FMC_D4/FMC_DA4; additional functions OPAMP2_VOUT and COMP2_INM."
      },
      {
        "number": "58",
        "name": "PE8",
        "type": "bidirectional",
        "description": "FT_ah2 I/O (5 V tolerant, analog option and group h2); alternate functions include TIM1_CH1N, DFSDM1_CKIN2, UART7_Tx, OCTOSPIM_P1_IO5, FMC_D5/FMC_DA5 and COMP2_OUT; additional function OPAMP2_VINM."
      },
      {
        "number": "59",
        "name": "PE9",
        "type": "bidirectional",
        "description": "FT_ah2 I/O (5 V tolerant, analog option and group h2); alternate functions include TIM1_CH1, DFSDM1_CKOUT, UART7_RTS, OCTOSPIM_P1_IO6 and FMC_D6/FMC_DA6; additional functions OPAMP2_VINP and COMP2_INP."
      },
      {
        "number": "60",
        "name": "PE10",
        "type": "bidirectional",
        "description": "FT_ah2 I/O (5 V tolerant, analog option and group h2); alternate functions include TIM1_CH2N, DFSDM1_DATIN4, UART7_CTS, OCTOSPIM_P1_IO7 and FMC_D7/FMC_DA7; additional function COMP2_INM."
      },
      {
        "number": "61",
        "name": "PE11",
        "type": "bidirectional",
        "description": "FT_ah2 I/O (5 V tolerant, analog option and group h2); alternate functions include TIM1_CH2, DFSDM1_CKIN4, SPI4_NSS, SAI2_SD_B, OCTOSPIM_P1_NCS, FMC_D8/FMC_DA8 and LCD_G3; additional function COMP2_INP."
      },
      {
        "number": "62",
        "name": "PE12",
        "type": "bidirectional",
        "description": "FT_h2 I/O (5 V tolerant, group h2); alternate functions include TIM1_CH3N, DFSDM1_DATIN5, SPI4_SCK, SAI2_SCK_B, FMC_D9/FMC_DA9 and LCD_B4; additional function COMP1_OUT."
      },
      {
        "number": "63",
        "name": "PE13",
        "type": "bidirectional",
        "description": "FT_h2 I/O (5 V tolerant, group h2); alternate functions include TIM1_CH3, DFSDM1_CKIN5, SPI4_MISO, SAI2_FS_B, FMC_D10/FMC_DA10 and LCD_DE; additional function COMP2_OUT."
      },
      {
        "number": "64",
        "name": "PE14",
        "type": "bidirectional",
        "description": "FT_h2 I/O (5 V tolerant, group h2); alternate functions include TIM1_CH4, SPI4_MOSI, SAI2_MCK_B, FMC_D11/FMC_DA11 and LCD_CLK."
      },
      {
        "number": "65",
        "name": "PE15",
        "type": "bidirectional",
        "description": "FT_h2 I/O (5 V tolerant, group h2); alternate functions include TIM1_BKIN, USART10_CK, FMC_D12/FMC_DA12 and LCD_R7; additional function TIM1_BKIN_COMP12."
      },
      {
        "number": "66",
        "name": "PB10",
        "type": "bidirectional",
        "description": "FT_f I/O (5 V tolerant, FM+ I2C option); alternate functions include TIM2_CH3, LPTIM2_IN1, I2C2_SCL, SPI2_SCK/I2S2_CK, DFSDM1_DATIN7, USART3_TX, OCTOSPIM_P1_NCS, OTG_HS_ULPI_D3 and LCD_G4."
      },
      {
        "number": "67",
        "name": "PB11",
        "type": "bidirectional",
        "description": "FT_f I/O (5 V tolerant, FM+ I2C option); alternate functions include TIM2_CH4, LPTIM2_ETR, I2C2_SDA, DFSDM1_CKIN7, USART3_RX, OTG_HS_ULPI_D4 and LCD_G5."
      },
      {
        "number": "68",
        "name": "VCAP",
        "type": "power_out",
        "description": "Core-voltage regulator output; connect to the external VCAP capacitor (Section 6.3.2)."
      },
      {
        "number": "69",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference pin of the digital supply domain."
      },
      {
        "number": "70",
        "name": "VDDLDO",
        "type": "power_in",
        "description": "Supply of the internal LDO regulator, 1.62 V minimum to 3.6 V maximum, not higher than VDD (Table 22)."
      },
      {
        "number": "71",
        "name": "VDD",
        "type": "power_in",
        "description": "Standard operating supply, 1.62 V minimum to 3.6 V maximum (Table 22)."
      },
      {
        "number": "72",
        "name": "PB12",
        "type": "bidirectional",
        "description": "FT_h1 I/O (5 V tolerant, group h1); alternate functions include TIM1_BKIN, OCTOSPIM_P1_NCLK, I2C2_SMBA, SPI2_NSS/I2S2_WS, USART3_CK, FDCAN2_RX, OTG_HS_ULPI_D5 and UART5_RX."
      },
      {
        "number": "73",
        "name": "PB13",
        "type": "bidirectional",
        "description": "FT_h0 I/O (5 V tolerant, group h0); alternate functions include TIM1_CH1N, LPTIM2_OUT, SPI2_SCK/I2S2_CK, USART3_CTS/USART3_NSS, FDCAN2_TX, OTG_HS_ULPI_D6, SDMMC1_D0 and UART5_TX."
      },
      {
        "number": "74",
        "name": "PB14",
        "type": "bidirectional",
        "description": "FT_h0 I/O (5 V tolerant, group h0); alternate functions include TIM1_CH2N, TIM12_CH1, TIM8_CH2N, USART1_TX, SPI2_MISO/I2S2_SDI, USART3_RTS, UART4_RTS, SDMMC2_D0 and LCD_CLK."
      },
      {
        "number": "75",
        "name": "PB15",
        "type": "bidirectional",
        "description": "FT_h0 I/O (5 V tolerant, group h0); alternate functions include RTC_REFIN, TIM1_CH3N, TIM12_CH2, TIM8_CH3N, USART1_RX, SPI2_MOSI/I2S2_SDO, SDMMC2_D1 and LCD_G7."
      },
      {
        "number": "76",
        "name": "PD8",
        "type": "bidirectional",
        "description": "FT_h2 I/O (5 V tolerant, group h2); alternate functions include DFSDM1_CKIN3, USART3_TX, SPDIFRX1_IN1 and FMC_D13/FMC_DA13."
      },
      {
        "number": "77",
        "name": "PD9",
        "type": "bidirectional",
        "description": "FT_h2 I/O (5 V tolerant, group h2); alternate functions include DFSDM1_DATIN3, USART3_RX and FMC_D14/FMC_DA14."
      },
      {
        "number": "78",
        "name": "PD10",
        "type": "bidirectional",
        "description": "FT_h2 I/O (5 V tolerant, group h2); alternate functions include DFSDM1_CKOUT, DFSDM2_CKOUT, USART3_CK, FMC_D15/FMC_DA15 and LCD_B3."
      },
      {
        "number": "79",
        "name": "VDD",
        "type": "power_in",
        "description": "Standard operating supply, 1.62 V minimum to 3.6 V maximum (Table 22)."
      },
      {
        "number": "80",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference pin of the digital supply domain."
      },
      {
        "number": "81",
        "name": "PD11",
        "type": "bidirectional",
        "description": "FT_h2 I/O (5 V tolerant, group h2); alternate functions include LPTIM2_IN2, I2C4_SMBA, USART3_CTS/USART3_NSS, OCTOSPIM_P1_IO0, SAI2_SD_A and FMC_A16/FMC_CLE."
      },
      {
        "number": "82",
        "name": "PD12",
        "type": "bidirectional",
        "description": "FT_fh2 I/O (5 V tolerant, FM+ I2C option and group h2); alternate functions include LPTIM1_IN1, TIM4_CH1, LPTIM2_IN1, I2C4_SCL, USART3_RTS, OCTOSPIM_P1_IO1, SAI2_FS_A and FMC_A17/FMC_ALE."
      },
      {
        "number": "83",
        "name": "PD13",
        "type": "bidirectional",
        "description": "FT_fh2 I/O (5 V tolerant, FM+ I2C option and group h2); alternate functions include LPTIM1_OUT, TIM4_CH2, I2C4_SDA, OCTOSPIM_P1_IO3, SAI2_SCK_A, UART9_RTS and FMC_A18."
      },
      {
        "number": "84",
        "name": "PD14",
        "type": "bidirectional",
        "description": "FT_h2 I/O (5 V tolerant, group h2); alternate functions include TIM4_CH3, UART8_CTS, UART9_RX and FMC_D0/FMC_DA0."
      },
      {
        "number": "85",
        "name": "PD15",
        "type": "bidirectional",
        "description": "FT_h2 I/O (5 V tolerant, group h2); alternate functions include TIM4_CH4, UART8_RTS, UART9_TX and FMC_D1/FMC_DA1."
      },
      {
        "number": "86",
        "name": "PG6",
        "type": "bidirectional",
        "description": "FT_h2 I/O (5 V tolerant, group h2); alternate functions include TIM17_BKIN, OCTOSPIM_P1_NCS, FMC_NE3, DCMI_D12/PSSI_D12 and LCD_R7."
      },
      {
        "number": "87",
        "name": "PG7",
        "type": "bidirectional",
        "description": "FT_h2 I/O (5 V tolerant, group h2); alternate functions include SAI1_MCLK_A, USART6_CK, OCTOSPIM_P2_DQS, FMC_INT, DCMI_D13/PSSI_D13 and LCD_CLK."
      },
      {
        "number": "88",
        "name": "PG8",
        "type": "bidirectional",
        "description": "FT_h2 I/O (5 V tolerant, group h2); alternate functions include TIM8_ETR, SPI6_NSS/I2S6_WS, USART6_RTS, SPDIFRX1_IN2, FMC_SDCLK and LCD_G7."
      },
      {
        "number": "89",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference pin of the digital supply domain."
      },
      {
        "number": "90",
        "name": "VDD50USB",
        "type": "power_in",
        "description": "Supply pin of the USB 5 V domain feeding the USB regulator (see USB regulator characteristics, Table 32)."
      },
      {
        "number": "91",
        "name": "VDD33USB",
        "type": "power_in",
        "description": "Standard operating supply of the USB domain, 3.0 V minimum to 3.6 V maximum when USB is used (Table 22)."
      },
      {
        "number": "92",
        "name": "VDD",
        "type": "power_in",
        "description": "Standard operating supply, 1.62 V minimum to 3.6 V maximum (Table 22)."
      },
      {
        "number": "93",
        "name": "PC6",
        "type": "bidirectional",
        "description": "FT_h0 I/O (5 V tolerant, group h0); alternate functions include TIM3_CH1, TIM8_CH1, DFSDM1_CKIN3, I2S2_MCK, USART6_TX, FMC_NWAIT, SDMMC1_D6, DCMI_D0/PSSI_D0 and LCD_HSYNC."
      },
      {
        "number": "94",
        "name": "PC7",
        "type": "bidirectional",
        "description": "FT_h0 I/O (5 V tolerant, group h0); alternate functions include TRGIO, TIM3_CH2, TIM8_CH2, DFSDM1_DATIN3, I2S3_MCK, USART6_RX, FMC_NE1, SWPMI_TX, DCMI_D1/PSSI_D1 and LCD_G6."
      },
      {
        "number": "95",
        "name": "PC8",
        "type": "bidirectional",
        "description": "FT_h0 I/O (5 V tolerant, group h0); alternate functions include TRACED1, TIM3_CH3, TIM8_CH3, USART6_CK, UART5_RTS, FMC_NE2/FMC_NCE, FMC_INT, SDMMC1_D0 and DCMI_D2/PSSI_D2."
      },
      {
        "number": "96",
        "name": "PC9",
        "type": "bidirectional",
        "description": "FT_fh0 I/O (5 V tolerant, FM+ I2C option and group h0); alternate functions include MCO2, TIM3_CH4, TIM8_CH4, I2C3_SDA, I2S_CKIN, UART5_CTS, OCTOSPIM_P1_IO0, SDMMC1_D1 and DCMI_D3/PSSI_D3."
      },
      {
        "number": "97",
        "name": "PA8",
        "type": "bidirectional",
        "description": "FT_fh0 I/O (5 V tolerant, FM+ I2C option and group h0); alternate functions include MCO1, TIM1_CH1, TIM8_BKIN2, I2C3_SCL, USART1_CK, OTG_HS_SOF, UART7_RX and LCD_R6."
      },
      {
        "number": "98",
        "name": "PA9",
        "type": "bidirectional",
        "description": "FT_u I/O (5 V tolerant, USB option supplied by VDD33USB); alternate functions include TIM1_CH2, LPUART1_TX, I2C3_SMBA, SPI2_SCK/I2S2_CK, USART1_TX, DCMI_D0/PSSI_D0 and LCD_R5; additional function OTG_HS_VBUS."
      },
      {
        "number": "99",
        "name": "PA10",
        "type": "bidirectional",
        "description": "FT_u I/O (5 V tolerant, USB option supplied by VDD33USB); alternate functions include TIM1_CH3, LPUART1_RX, USART1_RX, OTG_HS_ID, MDIOS_MDIO, LCD_B4, DCMI_D1/PSSI_D1 and LCD_B1."
      },
      {
        "number": "100",
        "name": "PA11",
        "type": "bidirectional",
        "description": "FT_u I/O (5 V tolerant, USB option supplied by VDD33USB); alternate functions include TIM1_CH4, LPUART1_CTS, SPI2_NSS/I2S2_WS, UART4_RX, USART1_CTS/USART1_NSS, FDCAN1_RX and LCD_R4; additional function OTG_HS_DM."
      },
      {
        "number": "101",
        "name": "PA12",
        "type": "bidirectional",
        "description": "FT_u I/O (5 V tolerant, USB option supplied by VDD33USB); alternate functions include TIM1_ETR, LPUART1_RTS, SPI2_SCK/I2S2_CK, UART4_TX, USART1_RTS, SAI2_FS_B, FDCAN1_TX and LCD_R5; additional function OTG_HS_DP."
      },
      {
        "number": "102",
        "name": "PA13(JTMS/SWDIO)",
        "type": "bidirectional",
        "description": "FT I/O (5 V tolerant) whose reset function is the JTMS/SWDIO serial-wire debug data pin."
      },
      {
        "number": "103",
        "name": "VCAP",
        "type": "power_out",
        "description": "Core-voltage regulator output; connect to the external VCAP capacitor (Section 6.3.2)."
      },
      {
        "number": "104",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference pin of the digital supply domain."
      },
      {
        "number": "105",
        "name": "VDDLDO",
        "type": "power_in",
        "description": "Supply of the internal LDO regulator, 1.62 V minimum to 3.6 V maximum, not higher than VDD (Table 22)."
      },
      {
        "number": "106",
        "name": "VDD",
        "type": "power_in",
        "description": "Standard operating supply, 1.62 V minimum to 3.6 V maximum (Table 22)."
      },
      {
        "number": "107",
        "name": "PA14(JTCK/SWCLK)",
        "type": "bidirectional",
        "description": "FT I/O (5 V tolerant) whose reset function is the JTCK/SWCLK serial-wire debug clock pin."
      },
      {
        "number": "108",
        "name": "PA15(JTDI)",
        "type": "bidirectional",
        "description": "FT I/O (5 V tolerant) whose reset function is the JTDI debug data input; alternate functions include TIM2_CH1/TIM2_ETR, HDMI_CEC, SPI1_NSS/I2S1_WS, SPI3_NSS/I2S3_WS, SPI6_NSS/I2S6_WS, UART4_RTS, LCD_R3 and UART7_TX."
      },
      {
        "number": "109",
        "name": "PC10",
        "type": "bidirectional",
        "description": "FT_h0 I/O (5 V tolerant, group h0); alternate functions include DFSDM1_CKIN5, DFSDM2_CKIN0, SPI3_SCK/I2S3_CK, USART3_TX, UART4_TX, OCTOSPIM_P1_IO1, SWPMI_RX, SDMMC1_D2, DCMI_D8/PSSI_D8 and LCD_R2."
      },
      {
        "number": "110",
        "name": "PC11",
        "type": "bidirectional",
        "description": "FT_h0 I/O (5 V tolerant, group h0); alternate functions include DFSDM1_DATIN5, DFSDM2_DATIN0, SPI3_MISO/I2S3_SDI, USART3_RX, UART4_RX, OCTOSPIM_P1_NCS, SDMMC1_D3, DCMI_D4/PSSI_D4 and LCD_B4."
      },
      {
        "number": "111",
        "name": "PC12",
        "type": "bidirectional",
        "description": "FT_h0 I/O (5 V tolerant, group h0); alternate functions include TRACED3, TIM15_CH1, DFSDM2_CKOUT, SPI6_SCK/I2S6_CK, SPI3_MOSI/I2S3_SDO, USART3_CK, UART5_TX, SDMMC1_CK, DCMI_D9/PSSI_D9 and LCD_R6."
      },
      {
        "number": "112",
        "name": "PD0",
        "type": "bidirectional",
        "description": "FT_h2 I/O (5 V tolerant, group h2); alternate functions include DFSDM1_CKIN6, UART4_RX, FDCAN1_RX, UART9_CTS, FMC_D2/FMC_DA2 and LCD_B1."
      },
      {
        "number": "113",
        "name": "PD1",
        "type": "bidirectional",
        "description": "FT_h2 I/O (5 V tolerant, group h2); alternate functions include DFSDM1_DATIN6, UART4_TX, FDCAN1_TX and FMC_D3/FMC_DA3."
      },
      {
        "number": "114",
        "name": "PD2",
        "type": "bidirectional",
        "description": "FT_h0 I/O (5 V tolerant, group h0); alternate functions include TRACED2, TIM3_ETR, TIM15_BKIN, UART5_RX, LCD_B7, SDMMC1_CMD, DCMI_D11/PSSI_D11 and LCD_B2."
      },
      {
        "number": "115",
        "name": "PD3",
        "type": "bidirectional",
        "description": "FT_h2 I/O (5 V tolerant, group h2); alternate functions include DFSDM1_CKOUT, SPI2_SCK/I2S2_CK, USART2_CTS/USART2_NSS, FMC_CLK, DCMI_D5/PSSI_D5 and LCD_G7."
      },
      {
        "number": "116",
        "name": "PD4",
        "type": "bidirectional",
        "description": "FT_h1 I/O (5 V tolerant, group h1); alternate functions include USART2_RTS, OCTOSPIM_P1_IO4 and FMC_NOE."
      },
      {
        "number": "117",
        "name": "PD5",
        "type": "bidirectional",
        "description": "FT_h1 I/O (5 V tolerant, group h1); alternate functions include USART2_TX, OCTOSPIM_P1_IO5 and FMC_NWE."
      },
      {
        "number": "118",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference pin of the digital supply domain."
      },
      {
        "number": "119",
        "name": "VDDMMC",
        "type": "power_in",
        "description": "Supply for the independent MMC I/Os (secondary supply for _s pads), 1.62 V minimum to 3.6 V maximum; equal to VDD when not used (Table 22)."
      },
      {
        "number": "120",
        "name": "PD6",
        "type": "bidirectional",
        "description": "FT_sh3 I/O (5 V tolerant, secondary supply VDDMMC); alternate functions include SAI1_D1, DFSDM1_DATIN1, SPI3_MOSI/I2S3_SDO, SAI1_SD_A, USART2_RX, OCTOSPIM_P1_IO6, SDMMC2_CK, FMC_NWAIT, DCMI_D10/PSSI_D10 and LCD_B2."
      },
      {
        "number": "121",
        "name": "PD7",
        "type": "bidirectional",
        "description": "FT_sh3 I/O (5 V tolerant, secondary supply VDDMMC); alternate functions include DFSDM1_DATIN4, SPI1_MOSI/I2S1_SDO, DFSDM1_CKIN1, USART2_CK, SPDIFRX1_IN0, OCTOSPIM_P1_IO7, SDMMC2_CMD and FMC_NE1."
      },
      {
        "number": "122",
        "name": "PG9",
        "type": "bidirectional",
        "description": "FT_sh3 I/O (5 V tolerant, secondary supply VDDMMC); alternate functions include SPI1_MISO/I2S1_SDI, USART6_RX, SPDIFRX1_IN3, OCTOSPIM_P1_IO6, SAI2_FS_B, SDMMC2_D0, FMC_NE2/FMC_NCE and DCMI_VSYNC/PSSI_RDY."
      },
      {
        "number": "123",
        "name": "PG10",
        "type": "bidirectional",
        "description": "FT_sh3 I/O (5 V tolerant, secondary supply VDDMMC); alternate functions include OCTOSPIM_P2_IO6, SPI1_NSS/I2S1_WS, LCD_G3, SAI2_SD_B, SDMMC2_D1, FMC_NE3, DCMI_D2/PSSI_D2 and LCD_B2."
      },
      {
        "number": "124",
        "name": "PG11",
        "type": "bidirectional",
        "description": "FT_sh3 I/O (5 V tolerant, secondary supply VDDMMC); alternate functions include LPTIM1_IN2, SPI1_SCK/I2S1_CK, SPDIFRX1_IN0, OCTOSPIM_P2_IO7, SDMMC2_D2, USART10_RX, DCMI_D3/PSSI_D3 and LCD_B3."
      },
      {
        "number": "125",
        "name": "PG12",
        "type": "bidirectional",
        "description": "FT_sh3 I/O (5 V tolerant, secondary supply VDDMMC); alternate functions include LPTIM1_IN1, OCTOSPIM_P2_NCS, SPI6_MISO/I2S6_SDI, USART6_RTS, SPDIFRX1_IN1, SDMMC2_D3, USART10_TX, FMC_NE4 and LCD_B1."
      },
      {
        "number": "126",
        "name": "PG13",
        "type": "bidirectional",
        "description": "FT_sh3 I/O (5 V tolerant, secondary supply VDDMMC); alternate functions include TRACED0, LPTIM1_OUT, SPI6_SCK/I2S6_CK, USART6_CTS/USART6_NSS, SDMMC2_D6, USART10_CTS/USART10_NSS, FMC_A24 and LCD_R0."
      },
      {
        "number": "127",
        "name": "PG14",
        "type": "bidirectional",
        "description": "FT_sh3 I/O (5 V tolerant, secondary supply VDDMMC); alternate functions include TRACED1, LPTIM1_ETR, SPI6_MOSI/I2S6_SDO, USART6_TX, OCTOSPIM_P1_IO7, SDMMC2_D7, USART10_RTS, FMC_A25 and LCD_B0."
      },
      {
        "number": "128",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference pin of the digital supply domain."
      },
      {
        "number": "129",
        "name": "VDD",
        "type": "power_in",
        "description": "Standard operating supply, 1.62 V minimum to 3.6 V maximum (Table 22)."
      },
      {
        "number": "130",
        "name": "PB3(JTDO/TRACESWO)",
        "type": "bidirectional",
        "description": "FT_h0 I/O (5 V tolerant, group h0) whose reset function is the JTDO/TRACESWO trace output; alternate functions include TIM2_CH2, SPI1_SCK/I2S1_CK, SPI3_SCK/I2S3_CK, SPI6_SCK/I2S6_CK, SDMMC2_D2, CRS_SYNC and UART7_RX."
      },
      {
        "number": "131",
        "name": "PB4(NJTRST)",
        "type": "bidirectional",
        "description": "FT_h0 I/O (5 V tolerant, group h0) whose reset function is the NJTRST JTAG reset pin; alternate functions include TIM16_BKIN, TIM3_CH1, SPI1_MISO/I2S1_SDI, SPI3_MISO/I2S3_SDI, SPI2_NSS/I2S2_WS, SPI6_MISO/I2S6_SDI, SDMMC2_D3 and UART7_TX."
      },
      {
        "number": "132",
        "name": "PB5",
        "type": "bidirectional",
        "description": "FT_h0 I/O (5 V tolerant, group h0); alternate functions include TIM17_BKIN, TIM3_CH2, I2C1_SMBA, SPI1_MOSI/I2S1_SDO, I2C4_SMBA, SPI3_MOSI/I2S3_SDO, SPI6_MOSI/I2S6_SDO, FDCAN2_RX, OTG_HS_ULPI_D7, LCD_B5, FMC_SDCKE1, DCMI_D10/PSSI_D10 and UART5_RX."
      },
      {
        "number": "133",
        "name": "PB6",
        "type": "bidirectional",
        "description": "FT_f I/O (5 V tolerant, FM+ I2C option); alternate functions include TIM16_CH1N, TIM4_CH1, I2C1_SCL, HDMI_CEC, I2C4_SCL, USART1_TX, LPUART1_TX, FDCAN2_TX, OCTOSPIM_P1_NCS, DFSDM1_DATIN5, FMC_SDNE1, DCMI_D5/PSSI_D5 and UART5_TX."
      },
      {
        "number": "134",
        "name": "PB7",
        "type": "bidirectional",
        "description": "FT_fa I/O (5 V tolerant, FM+ I2C option and analog option); alternate functions include TIM17_CH1N, TIM4_CH2, I2C1_SDA, I2C4_SDA, USART1_RX, LPUART1_RX, DFSDM1_CKIN5, FMC_NL and DCMI_VSYNC/PSSI_RDY; additional function PVD_IN."
      },
      {
        "number": "135",
        "name": "BOOT0",
        "type": "input",
        "description": "Dedicated BOOT0 boot-mode selection input; the input voltage range is 0 V to 9 V (Table 22)."
      },
      {
        "number": "136",
        "name": "PB8",
        "type": "bidirectional",
        "description": "FT_fsh3 I/O (5 V tolerant, FM+ I2C option, secondary supply VDDMMC); alternate functions include TIM16_CH1, TIM4_CH3, DFSDM1_CKIN7, I2C1_SCL, I2C4_SCL, SDMMC1_CKIN, UART4_RX, FDCAN1_RX, SDMMC2_D4, SDMMC1_D4 and DCMI_D6/PSSI_D6."
      },
      {
        "number": "137",
        "name": "PB9",
        "type": "bidirectional",
        "description": "FT_fsh3 I/O (5 V tolerant, FM+ I2C option, secondary supply VDDMMC); alternate functions include TIM17_CH1, TIM4_CH4, DFSDM1_DATIN7, I2C1_SDA, SPI2_NSS/I2S2_WS, I2C4_SDA, SDMMC1_CDIR, UART4_TX, FDCAN1_TX, SDMMC2_D5 and DCMI_D7/PSSI_D7."
      },
      {
        "number": "138",
        "name": "PE0",
        "type": "bidirectional",
        "description": "FT_h2 I/O (5 V tolerant, group h2); alternate functions include LPTIM1_ETR, TIM4_ETR, LPTIM2_ETR, UART8_RX, SAI2_MCK_A, FMC_NBL0, DCMI_D2/PSSI_D2 and LCD_R0."
      },
      {
        "number": "139",
        "name": "PE1",
        "type": "bidirectional",
        "description": "FT_h2 I/O (5 V tolerant, group h2); alternate functions include LPTIM1_IN2, UART8_TX, FMC_NBL1, DCMI_D3/PSSI_D3 and LCD_R6."
      },
      {
        "number": "140",
        "name": "VCAP",
        "type": "power_out",
        "description": "Core-voltage regulator output; connect to the external VCAP capacitor (Section 6.3.2)."
      },
      {
        "number": "141",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference pin of the digital supply domain."
      },
      {
        "number": "142",
        "name": "PDR_ON",
        "type": "input",
        "description": "Control pin that switches the power-down reset (PDR) on or off; the PDR can only be switched off through this pin, and it is not available on all packages (Table 22 note 1)."
      },
      {
        "number": "143",
        "name": "VDDLDO",
        "type": "power_in",
        "description": "Supply of the internal LDO regulator, 1.62 V minimum to 3.6 V maximum, not higher than VDD (Table 22)."
      },
      {
        "number": "144",
        "name": "VDD",
        "type": "power_in",
        "description": "Standard operating supply, 1.62 V minimum to 3.6 V maximum (Table 22)."
      }
    ],
    "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: ZIT6Q carries the Q suffix (with SMPS). Pin numbers were taken from the LQFP144 wit; Table 7 extraction is column-misaligned for some rows (for example PE3, PE6 and the VSS/VDD rows), s; Pin type mapping: the datasheet lists PDR_ON with type S (supply). It is mapped here to input becaus"
        ],
        "pages_sent": 90,
        "cost_usd": 0.5934,
        "at": "2026-10-08T21:46:31"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588939911244222464",
        "pages": 230,
        "sha256": "1b145349083f63b4",
        "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": "stm32h7a3zit6q.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          22,
          22,
          1.5
        ],
        "zmin_mm": 0,
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