STM32F439ZIT6

{
  "schema_version": 1,
  "type": "component",
  "slug": "stm32f439zit6",
  "title": "STM32F439ZIT6",
  "brief": "STMicroelectronics Global Sourcing Parts, 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",
    "global sourcing parts",
    "stm32f439zit6",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "STM32F439ZIT6",
    "manufacturer": "STMicroelectronics",
    "package": "LQFP-144(20x20)",
    "pin_count": 144,
    "category": "Global Sourcing Parts",
    "subcategory": "Global Sourcing Parts",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588923030851997696",
    "parts": {
      "symbol": "stm32f439zit6.kicad_sym",
      "footprint": "stm32f439zit6.kicad_mod",
      "model_3d": "stm32f439zit6-hero.glb",
      "model_3d_plain": "stm32f439zit6.glb",
      "model_3d_step": "stm32f439zit6-etched.step",
      "model_3d_step_plain": "stm32f439zit6.step",
      "lbr": "stm32f439zit6.lbr"
    },
    "distributor_links": {
      "lcsc": "C1341221",
      "digikey": "497-17471-ND",
      "mouser": "511-STM32F439ZIT6"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T01:24:30Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "497-17471-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "511-STM32F439ZIT6",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "PE2",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) I/O, floating input after reset; alternate functions TRACECLK, SPI4_SCK, SAI1_MCLK_A, ETH_MII_TXD3, FMC_A23, EVENTOUT."
      },
      {
        "number": "2",
        "name": "PE3",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) I/O; alternate functions TRACED0, SAI1_SD_B, FMC_A19, EVENTOUT."
      },
      {
        "number": "3",
        "name": "PE4",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) I/O; alternate functions TRACED1, SPI4_NSS, SAI1_FS_A, FMC_A20, DCMI_D4, LCD_B0, EVENTOUT."
      },
      {
        "number": "4",
        "name": "PE5",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) I/O; alternate functions TRACED2, TIM9_CH1, SPI4_MISO, SAI1_SCK_A, FMC_A21, DCMI_D6, LCD_G0, EVENTOUT."
      },
      {
        "number": "5",
        "name": "PE6",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) I/O; alternate functions TRACED3, TIM9_CH2, SPI4_MOSI, SAI1_SD_A, FMC_A22, DCMI_D7, LCD_G1, EVENTOUT."
      },
      {
        "number": "6",
        "name": "VBAT",
        "type": "power_in",
        "description": "Backup-domain supply for the RTC, the 20x32-bit backup registers and the optional 4 KB backup SRAM."
      },
      {
        "number": "7",
        "name": "PC13",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O supplied through the power switch, which sinks only 3 mA, so output use is limited to 2 MHz with 30 pF load and it must not source current (e.g. drive an LED); additional function TAMP_1, alternate EVENTOUT."
      },
      {
        "number": "8",
        "name": "PC14-OSC32_IN",
        "type": "bidirectional",
        "description": "Same power-switch limits as PC13 (3 mA, 2 MHz at 30 pF max, no current sourcing); in oscillator mode this pin is the 32 kHz oscillator input OSC32_IN, otherwise PC14 I/O with alternate EVENTOUT."
      },
      {
        "number": "9",
        "name": "PC15-OSC32_OUT",
        "type": "bidirectional",
        "description": "Same power-switch limits as PC13 (3 mA, 2 MHz at 30 pF max, no current sourcing); in oscillator mode this pin is the 32 kHz oscillator output OSC32_OUT, otherwise PC15 I/O with alternate EVENTOUT."
      },
      {
        "number": "10",
        "name": "PF0",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions I2C2_SDA, FMC_A0, EVENTOUT."
      },
      {
        "number": "11",
        "name": "PF1",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions I2C2_SCL, FMC_A1, EVENTOUT."
      },
      {
        "number": "12",
        "name": "PF2",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions I2C2_SMBA, FMC_A2, EVENTOUT."
      },
      {
        "number": "13",
        "name": "PF3",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate function FMC_A3, EVENTOUT; additional function ADC3_IN9."
      },
      {
        "number": "14",
        "name": "PF4",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate function FMC_A4, EVENTOUT; additional function ADC3_IN14."
      },
      {
        "number": "15",
        "name": "PF5",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate function FMC_A5, EVENTOUT; additional function ADC3_IN15."
      },
      {
        "number": "16",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin for the digital supply domain."
      },
      {
        "number": "17",
        "name": "VDD",
        "type": "power_in",
        "description": "Application supply and I/O supply pin; the device operates from 1.7 V to 3.6 V."
      },
      {
        "number": "18",
        "name": "PF6",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions TIM10_CH1, SPI5_NSS, SAI1_SD_B, UART7_Rx, FMC_NIORD, EVENTOUT; additional function ADC3_IN4."
      },
      {
        "number": "19",
        "name": "PF7",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions TIM11_CH1, SPI5_SCK, SAI1_MCLK_B, UART7_Tx, FMC_NREG, EVENTOUT; additional function ADC3_IN5."
      },
      {
        "number": "20",
        "name": "PF8",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions SPI5_MISO, SAI1_SCK_B, TIM13_CH1, FMC_NIOWR, EVENTOUT; additional function ADC3_IN6."
      },
      {
        "number": "21",
        "name": "PF9",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions SPI5_MOSI, SAI1_FS_B, TIM14_CH1, FMC_CD, EVENTOUT; additional function ADC3_IN7."
      },
      {
        "number": "22",
        "name": "PF10",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions FMC_INTR, DCMI_D11, LCD_DE, EVENTOUT; additional function ADC3_IN8."
      },
      {
        "number": "23",
        "name": "PH0-OSC_IN",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT except in oscillator mode); in oscillator mode this pin is the high-speed oscillator input OSC_IN, otherwise PH0 with alternate EVENTOUT."
      },
      {
        "number": "24",
        "name": "PH1-OSC_OUT",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O (FT except in oscillator mode); in oscillator mode this pin is the high-speed oscillator output OSC_OUT, otherwise PH1 with alternate EVENTOUT."
      },
      {
        "number": "25",
        "name": "NRST",
        "type": "bidirectional",
        "description": "Bidirectional reset pin with weak pull-up resistor (active low)."
      },
      {
        "number": "26",
        "name": "PC0",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions OTG_HS_ULPI_STP, FMC_SDNWE, EVENTOUT; additional function ADC123_IN10."
      },
      {
        "number": "27",
        "name": "PC1",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions ETH_MDC, EVENTOUT; additional function ADC123_IN11."
      },
      {
        "number": "28",
        "name": "PC2",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions SPI2_MISO, I2S2ext_SD, OTG_HS_ULPI_DIR, ETH_MII_TXD2, FMC_SDNE0, EVENTOUT; additional function ADC123_IN12."
      },
      {
        "number": "29",
        "name": "PC3",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions SPI2_MOSI/I2S2_SD, OTG_HS_ULPI_NXT, ETH_MII_TX_CLK, FMC_SDCKE0, EVENTOUT; additional function ADC123_IN13."
      },
      {
        "number": "30",
        "name": "VDD",
        "type": "power_in",
        "description": "Application supply and I/O supply pin; the device operates from 1.7 V to 3.6 V."
      },
      {
        "number": "31",
        "name": "VSSA",
        "type": "power_in",
        "description": "Dedicated analog ground pin for the analog blocks."
      },
      {
        "number": "32",
        "name": "VREF+",
        "type": "power_in",
        "description": "Positive reference voltage input for the 12-bit ADC."
      },
      {
        "number": "33",
        "name": "VDDA",
        "type": "power_in",
        "description": "Dedicated analog supply pin for the analog blocks."
      },
      {
        "number": "34",
        "name": "PA0-WKUP",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions TIM2_CH1/TIM2_ETR, TIM5_CH1, TIM8_ETR, USART2_CTS, UART4_TX, ETH_MII_CRS, EVENTOUT; additional functions ADC123_IN0 and WKUP."
      },
      {
        "number": "35",
        "name": "PA1",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions TIM2_CH2, TIM5_CH2, USART2_RTS, UART4_RX, ETH_MII_RX_CLK/ETH_RMII_REF_CLK, EVENTOUT; additional function ADC123_IN1."
      },
      {
        "number": "36",
        "name": "PA2",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions TIM2_CH3, TIM5_CH3, TIM9_CH1, USART2_TX, ETH_MDIO, EVENTOUT; additional function ADC123_IN2."
      },
      {
        "number": "37",
        "name": "PA3",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions TIM2_CH4, TIM5_CH4, TIM9_CH2, USART2_RX, OTG_HS_ULPI_D0, ETH_MII_COL, LCD_B5, EVENTOUT; additional function ADC123_IN3."
      },
      {
        "number": "38",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin for the digital supply domain."
      },
      {
        "number": "39",
        "name": "VDD",
        "type": "power_in",
        "description": "Application supply and I/O supply pin; the device operates from 1.7 V to 3.6 V."
      },
      {
        "number": "40",
        "name": "PA4",
        "type": "bidirectional",
        "description": "3.3 V-tolerant I/O directly connected to the ADC; alternate functions SPI1_NSS, SPI3_NSS/I2S3_WS, USART2_CK, OTG_HS_SOF, DCMI_HSYNC, LCD_VSYNC, EVENTOUT; additional function ADC12_IN4/DAC_OUT1."
      },
      {
        "number": "41",
        "name": "PA5",
        "type": "bidirectional",
        "description": "3.3 V-tolerant I/O directly connected to the ADC; alternate functions TIM2_CH1/TIM2_ETR, TIM8_CH1N, SPI1_SCK, OTG_HS_ULPI_CK, EVENTOUT; additional function ADC12_IN5/DAC_OUT2."
      },
      {
        "number": "42",
        "name": "PA6",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions TIM1_BKIN, TIM3_CH1, TIM8_BKIN, SPI1_MISO, TIM13_CH1, DCMI_PIXCLK, LCD_G2, EVENTOUT; additional function ADC12_IN6."
      },
      {
        "number": "43",
        "name": "PA7",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions TIM1_CH1N, TIM3_CH2, TIM8_CH1N, SPI1_MOSI, TIM14_CH1, ETH_MII_RX_DV/ETH_RMII_CRS_DV, EVENTOUT; additional function ADC12_IN7."
      },
      {
        "number": "44",
        "name": "PC4",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions ETH_MII_RXD0/ETH_RMII_RXD0, EVENTOUT; additional function ADC12_IN14."
      },
      {
        "number": "45",
        "name": "PC5",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions ETH_MII_RXD1/ETH_RMII_RXD1, EVENTOUT; additional function ADC12_IN15."
      },
      {
        "number": "46",
        "name": "PB0",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions TIM1_CH2N, TIM3_CH3, TIM8_CH2N, LCD_R3, OTG_HS_ULPI_D1, ETH_MII_RXD2, EVENTOUT; additional function ADC12_IN8."
      },
      {
        "number": "47",
        "name": "PB1",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions TIM1_CH3N, TIM3_CH4, TIM8_CH3N, LCD_R6, OTG_HS_ULPI_D2, ETH_MII_RXD3, EVENTOUT; additional function ADC12_IN9."
      },
      {
        "number": "48",
        "name": "PB2-BOOT1",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O with the BOOT1 function named in the pin name; alternate function EVENTOUT."
      },
      {
        "number": "49",
        "name": "PF11",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions SPI5_MOSI, FMC_SDNRAS, DCMI_D12, EVENTOUT."
      },
      {
        "number": "50",
        "name": "PF12",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions FMC_A6, EVENTOUT."
      },
      {
        "number": "51",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin for the digital supply domain."
      },
      {
        "number": "52",
        "name": "VDD",
        "type": "power_in",
        "description": "Application supply and I/O supply pin; the device operates from 1.7 V to 3.6 V."
      },
      {
        "number": "53",
        "name": "PF13",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions FMC_A7, EVENTOUT."
      },
      {
        "number": "54",
        "name": "PF14",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions FMC_A8, EVENTOUT."
      },
      {
        "number": "55",
        "name": "PF15",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions FMC_A9, EVENTOUT."
      },
      {
        "number": "56",
        "name": "PG0",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions FMC_A10, EVENTOUT."
      },
      {
        "number": "57",
        "name": "PG1",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions FMC_A11, EVENTOUT."
      },
      {
        "number": "58",
        "name": "PE7",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions TIM1_ETR, UART7_Rx, FMC_D4, EVENTOUT."
      },
      {
        "number": "59",
        "name": "PE8",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions TIM1_CH1N, UART7_Tx, FMC_D5, EVENTOUT."
      },
      {
        "number": "60",
        "name": "PE9",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions TIM1_CH1, FMC_D6, EVENTOUT."
      },
      {
        "number": "61",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin for the digital supply domain."
      },
      {
        "number": "62",
        "name": "VDD",
        "type": "power_in",
        "description": "Application supply and I/O supply pin; the device operates from 1.7 V to 3.6 V."
      },
      {
        "number": "63",
        "name": "PE10",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions TIM1_CH2N, FMC_D7, EVENTOUT."
      },
      {
        "number": "64",
        "name": "PE11",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions TIM1_CH2, SPI4_NSS, FMC_D8, LCD_G3, EVENTOUT."
      },
      {
        "number": "65",
        "name": "PE12",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions TIM1_CH3N, SPI4_SCK, FMC_D9, LCD_B4, EVENTOUT."
      },
      {
        "number": "66",
        "name": "PE13",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions TIM1_CH3, SPI4_MISO, FMC_D10, LCD_DE, EVENTOUT."
      },
      {
        "number": "67",
        "name": "PE14",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions TIM1_CH4, SPI4_MOSI, FMC_D11, LCD_CLK, EVENTOUT."
      },
      {
        "number": "68",
        "name": "PE15",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions TIM1_BKIN, FMC_D12, LCD_R7, EVENTOUT."
      },
      {
        "number": "69",
        "name": "PB10",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions TIM2_CH3, I2C2_SCL, SPI2_SCK/I2S2_CK, USART3_TX, OTG_HS_ULPI_D3, ETH_MII_RX_ER, LCD_G4, EVENTOUT."
      },
      {
        "number": "70",
        "name": "PB11",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions TIM2_CH4, I2C2_SDA, USART3_RX, OTG_HS_ULPI_D4, ETH_MII_TX_EN/ETH_RMII_TX_EN, LCD_G5, EVENTOUT."
      },
      {
        "number": "71",
        "name": "VCAP_1",
        "type": "passive",
        "description": "Internal regulator output node; connect to the external VCAP1 capacitor specified in section 6.3.2."
      },
      {
        "number": "72",
        "name": "VDD",
        "type": "power_in",
        "description": "Application supply and I/O supply pin; the device operates from 1.7 V to 3.6 V."
      },
      {
        "number": "73",
        "name": "PB12",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions TIM1_BKIN, I2C2_SMBA, SPI2_NSS/I2S2_WS, USART3_CK, CAN2_RX, OTG_HS_ULPI_D5, ETH_MII_TXD0/ETH_RMII_TXD0, OTG_HS_ID, EVENTOUT."
      },
      {
        "number": "74",
        "name": "PB13",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions TIM1_CH1N, SPI2_SCK/I2S2_CK, USART3_CTS, CAN2_TX, OTG_HS_ULPI_D6, ETH_MII_TXD1/ETH_RMII_TXD1, EVENTOUT; additional function OTG_HS_VBUS."
      },
      {
        "number": "75",
        "name": "PB14",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions TIM1_CH2N, TIM8_CH2N, SPI2_MISO, I2S2ext_SD, USART3_RTS, TIM12_CH1, OTG_HS_DM, EVENTOUT."
      },
      {
        "number": "76",
        "name": "PB15",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions RTC_REFIN, TIM1_CH3N, TIM8_CH3N, SPI2_MOSI/I2S2_SD, TIM12_CH2, OTG_HS_DP, EVENTOUT."
      },
      {
        "number": "77",
        "name": "PD8",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions USART3_TX, FMC_D13, EVENTOUT."
      },
      {
        "number": "78",
        "name": "PD9",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions USART3_RX, FMC_D14, EVENTOUT."
      },
      {
        "number": "79",
        "name": "PD10",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions USART3_CK, FMC_D15, LCD_B3, EVENTOUT."
      },
      {
        "number": "80",
        "name": "PD11",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions USART3_CTS, FMC_A16, EVENTOUT."
      },
      {
        "number": "81",
        "name": "PD12",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions TIM4_CH1, USART3_RTS, FMC_A17, EVENTOUT."
      },
      {
        "number": "82",
        "name": "PD13",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions TIM4_CH2, FMC_A18, EVENTOUT."
      },
      {
        "number": "83",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin for the digital supply domain."
      },
      {
        "number": "84",
        "name": "VDD",
        "type": "power_in",
        "description": "Application supply and I/O supply pin; the device operates from 1.7 V to 3.6 V."
      },
      {
        "number": "85",
        "name": "PD14",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions TIM4_CH3, FMC_D0, EVENTOUT."
      },
      {
        "number": "86",
        "name": "PD15",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions TIM4_CH4, FMC_D1, EVENTOUT."
      },
      {
        "number": "87",
        "name": "PG2",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions FMC_A12, EVENTOUT."
      },
      {
        "number": "88",
        "name": "PG3",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions FMC_A13, EVENTOUT."
      },
      {
        "number": "89",
        "name": "PG4",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions FMC_A14/FMC_BA0, EVENTOUT."
      },
      {
        "number": "90",
        "name": "PG5",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions FMC_A15/FMC_BA1, EVENTOUT."
      },
      {
        "number": "91",
        "name": "PG6",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions FMC_INT2, DCMI_D12, LCD_R7, EVENTOUT."
      },
      {
        "number": "92",
        "name": "PG7",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions USART6_CK, FMC_INT3, DCMI_D13, LCD_CLK, EVENTOUT."
      },
      {
        "number": "93",
        "name": "PG8",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions SPI6_NSS, USART6_RTS, ETH_PPS_OUT, FMC_SDCLK, EVENTOUT."
      },
      {
        "number": "94",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin for the digital supply domain."
      },
      {
        "number": "95",
        "name": "VDD",
        "type": "power_in",
        "description": "Application supply and I/O supply pin; the device operates from 1.7 V to 3.6 V."
      },
      {
        "number": "96",
        "name": "PC6",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions TIM3_CH1, TIM8_CH1, I2S2_MCK, USART6_TX, SDIO_D6, DCMI_D0, LCD_HSYNC, EVENTOUT."
      },
      {
        "number": "97",
        "name": "PC7",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions TIM3_CH2, TIM8_CH2, I2S3_MCK, USART6_RX, SDIO_D7, DCMI_D1, LCD_G6, EVENTOUT."
      },
      {
        "number": "98",
        "name": "PC8",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions TIM3_CH3, TIM8_CH3, USART6_CK, SDIO_D0, DCMI_D2, EVENTOUT."
      },
      {
        "number": "99",
        "name": "PC9",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions MCO2, TIM3_CH4, TIM8_CH4, I2C3_SDA, I2S_CKIN, SDIO_D1, DCMI_D3, EVENTOUT."
      },
      {
        "number": "100",
        "name": "PA8",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions MCO1, TIM1_CH1, I2C3_SCL, USART1_CK, OTG_FS_SOF, LCD_R6, EVENTOUT."
      },
      {
        "number": "101",
        "name": "PA9",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions TIM1_CH2, I2C3_SMBA, USART1_TX, DCMI_D0, EVENTOUT; additional function OTG_FS_VBUS."
      },
      {
        "number": "102",
        "name": "PA10",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions TIM1_CH3, USART1_RX, OTG_FS_ID, DCMI_D1, EVENTOUT."
      },
      {
        "number": "103",
        "name": "PA11",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions TIM1_CH4, USART1_CTS, CAN1_RX, LCD_R4, OTG_FS_DM, EVENTOUT."
      },
      {
        "number": "104",
        "name": "PA12",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions TIM1_ETR, USART1_RTS, CAN1_TX, LCD_R5, OTG_FS_DP, EVENTOUT."
      },
      {
        "number": "105",
        "name": "PA13 (JTMS-SWDIO)",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions JTMS-SWDIO and EVENTOUT."
      },
      {
        "number": "106",
        "name": "VCAP_2",
        "type": "passive",
        "description": "Internal regulator output node; connect to the external VCAP2 capacitor specified in section 6.3.2."
      },
      {
        "number": "107",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin for the digital supply domain."
      },
      {
        "number": "108",
        "name": "VDD",
        "type": "power_in",
        "description": "Application supply and I/O supply pin; the device operates from 1.7 V to 3.6 V."
      },
      {
        "number": "109",
        "name": "PA14 (JTCK-SWCLK)",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions JTCK-SWCLK and EVENTOUT."
      },
      {
        "number": "110",
        "name": "PA15 (JTDI)",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions JTDI, TIM2_CH1/TIM2_ETR, SPI1_NSS, SPI3_NSS/I2S3_WS, EVENTOUT."
      },
      {
        "number": "111",
        "name": "PC10",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions SPI3_SCK/I2S3_CK, USART3_TX, UART4_TX, SDIO_D2, DCMI_D8, LCD_R2, EVENTOUT."
      },
      {
        "number": "112",
        "name": "PC11",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions I2S3ext_SD, SPI3_MISO, USART3_RX, UART4_RX, SDIO_D3, DCMI_D4, EVENTOUT."
      },
      {
        "number": "113",
        "name": "PC12",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions SPI3_MOSI/I2S3_SD, USART3_CK, UART5_TX, SDIO_CK, DCMI_D9, EVENTOUT."
      },
      {
        "number": "114",
        "name": "PD0",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions CAN1_RX, FMC_D2, EVENTOUT."
      },
      {
        "number": "115",
        "name": "PD1",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions CAN1_TX, FMC_D3, EVENTOUT."
      },
      {
        "number": "116",
        "name": "PD2",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions TIM3_ETR, UART5_RX, SDIO_CMD, DCMI_D11, EVENTOUT."
      },
      {
        "number": "117",
        "name": "PD3",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions SPI2_SCK/I2S2_CK, USART2_CTS, FMC_CLK, DCMI_D5, LCD_G7, EVENTOUT."
      },
      {
        "number": "118",
        "name": "PD4",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions USART2_RTS, FMC_NOE, EVENTOUT."
      },
      {
        "number": "119",
        "name": "PD5",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions USART2_TX, FMC_NWE, EVENTOUT."
      },
      {
        "number": "120",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin for the digital supply domain."
      },
      {
        "number": "121",
        "name": "VDD",
        "type": "power_in",
        "description": "Application supply and I/O supply pin; the device operates from 1.7 V to 3.6 V."
      },
      {
        "number": "122",
        "name": "PD6",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions SPI3_MOSI/I2S3_SD, SAI1_SD_A, USART2_RX, FMC_NWAIT, DCMI_D10, LCD_B2, EVENTOUT."
      },
      {
        "number": "123",
        "name": "PD7",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions USART2_CK, FMC_NE1/FMC_NCE2, EVENTOUT."
      },
      {
        "number": "124",
        "name": "PG9",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions USART6_RX, FMC_NE2/FMC_NCE3, EVENTOUT; DCMI_VSYNC alternate function is available only on silicon revision 3."
      },
      {
        "number": "125",
        "name": "PG10",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions LCD_G3, FMC_NCE4_1/FMC_NE3, DCMI_D2, LCD_B2, EVENTOUT."
      },
      {
        "number": "126",
        "name": "PG11",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions ETH_MII_TX_EN/ETH_RMII_TX_EN, FMC_NCE4_2, DCMI_D3, LCD_B3, EVENTOUT."
      },
      {
        "number": "127",
        "name": "PG12",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions SPI6_MISO, USART6_RTS, LCD_B4, FMC_NE4, LCD_B1, EVENTOUT."
      },
      {
        "number": "128",
        "name": "PG13",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions SPI6_SCK, USART6_CTS, ETH_MII_TXD0/ETH_RMII_TXD0, FMC_A24, EVENTOUT."
      },
      {
        "number": "129",
        "name": "PG14",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions SPI6_MOSI, USART6_TX, ETH_MII_TXD1/ETH_RMII_TXD1, FMC_A25, EVENTOUT."
      },
      {
        "number": "130",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin for the digital supply domain."
      },
      {
        "number": "131",
        "name": "VDD",
        "type": "power_in",
        "description": "Application supply and I/O supply pin; the device operates from 1.7 V to 3.6 V."
      },
      {
        "number": "132",
        "name": "PG15",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions USART6_CTS, FMC_SDNCAS, DCMI_D13, EVENTOUT."
      },
      {
        "number": "133",
        "name": "PB3 (JTDO/TRACESWO)",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions JTDO/TRACESWO, TIM2_CH2, SPI1_SCK, SPI3_SCK/I2S3_CK, EVENTOUT."
      },
      {
        "number": "134",
        "name": "PB4 (NJTRST)",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions NJTRST, TIM3_CH1, SPI1_MISO, SPI3_MISO, I2S3ext_SD, EVENTOUT."
      },
      {
        "number": "135",
        "name": "PB5",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions TIM3_CH2, I2C1_SMBA, SPI1_MOSI, SPI3_MOSI/I2S3_SD, CAN2_RX, OTG_HS_ULPI_D7, ETH_PPS_OUT, FMC_SDCKE1, DCMI_D10, EVENTOUT."
      },
      {
        "number": "136",
        "name": "PB6",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions TIM4_CH1, I2C1_SCL, USART1_TX, CAN2_TX, FMC_SDNE1, DCMI_D5, EVENTOUT."
      },
      {
        "number": "137",
        "name": "PB7",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions TIM4_CH2, I2C1_SDA, USART1_RX, FMC_NL, DCMI_VSYNC, EVENTOUT."
      },
      {
        "number": "138",
        "name": "BOOT0",
        "type": "input",
        "description": "Dedicated BOOT0 boot-mode selection input; additional function VPP (Flash programming voltage)."
      },
      {
        "number": "139",
        "name": "PB8",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions TIM4_CH3, TIM10_CH1, I2C1_SCL, CAN1_RX, ETH_MII_TXD3, SDIO_D4, DCMI_D6, LCD_B6, EVENTOUT."
      },
      {
        "number": "140",
        "name": "PB9",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions TIM4_CH4, TIM11_CH1, I2C1_SDA, SPI2_NSS/I2S2_WS, CAN1_TX, SDIO_D5, DCMI_D7, LCD_B7, EVENTOUT."
      },
      {
        "number": "141",
        "name": "PE0",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions TIM4_ETR, UART8_RX, FMC_NBL0, DCMI_D2, EVENTOUT."
      },
      {
        "number": "142",
        "name": "PE1",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O; alternate functions UART8_Tx, FMC_NBL1, DCMI_D3, EVENTOUT."
      },
      {
        "number": "143",
        "name": "PDR_ON",
        "type": "power_in",
        "description": "Power-down reset control pin, used when internal reset is OFF (see figure 7)."
      },
      {
        "number": "144",
        "name": "VDD",
        "type": "power_in",
        "description": "Application supply and I/O supply pin; the device operates from 1.7 V to 3.6 V."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pinout taken from Table 10 (LQFP144 column) and Figure 13. MPN STM32F439ZIT6 is LQFP144 (Z = 143/144; Per-pin descriptions are compiled from the Table 10 / Table 12 entries (I/O structure, alternate and; Type judgement: VCAP_1 and VCAP_2 are marked as supply (S) in the datasheet; I mapped them to passiv"
        ],
        "pages_sent": 93,
        "cost_usd": 0.5394,
        "at": "2026-10-08T01:23:47"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588923030851997696",
        "pages": 241,
        "sha256": "2505988d88e7f454",
        "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": "stm32f439zit6.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,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "b4d698da8bb7697b754adb5655c932342462d9b9341cdaa081b3604dbdf7559b",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "stm32f439zit6-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          22,
          22,
          1.5
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "761d8f8d28ac7892119dd54d2a20b81a51e6b45136dfc5eaccd033bc1ecb188a",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "STMicroelectronics",
      "Package": "LQFP-144(20x20)",
      "Category": "Global Sourcing Parts",
      "Pins": "144"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "stm32f439zit6"
  ],
  "discovery_pitch": "STM32F439ZIT6 (STMicroelectronics) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "stm32f439zit6.kicad_sym",
    "stm32f439zit6.kicad_mod",
    "stm32f439zit6.glb",
    "stm32f439zit6.step",
    "stm32f439zit6.lbr",
    "docs/hero.png",
    "docs/stm32f439zit6-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "stm32f439zit6-hero.glb",
    "stm32f439zit6-hero.overlay.json"
  ],
  "visibility": {
    "public": true
  }
}