HC32F4A0SITB-LQFP176

{
  "schema_version": 1,
  "type": "component",
  "slug": "hc32f4a0sitb-lqfp176",
  "title": "HC32F4A0SITB-LQFP176",
  "brief": "HDSC HDSC, LQFP-176(24x24). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "embedded processors & controllers",
    "hc32f4a0sitb-lqfp176",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "HC32F4A0SITB-LQFP176",
    "manufacturer": "HDSC",
    "package": "LQFP-176(24x24)",
    "pin_count": 176,
    "category": "Embedded Processors & Controllers",
    "subcategory": "HDSC",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/5b18a88044d82cb3660d1434a04d37d8.pdf",
    "parts": {
      "symbol": "hc32f4a0sitb-lqfp176.kicad_sym",
      "footprint": "hc32f4a0sitb-lqfp176.kicad_mod",
      "model_3d": "hc32f4a0sitb-lqfp176-hero.glb",
      "model_3d_plain": "hc32f4a0sitb-lqfp176-etched.glb",
      "model_3d_step": "hc32f4a0sitb-lqfp176-etched.step",
      "model_3d_step_plain": "hc32f4a0sitb-lqfp176.step",
      "lbr": "hc32f4a0sitb-lqfp176.lbr"
    },
    "distributor_links": {
      "lcsc": "C963555"
    },
    "distributor_check": {
      "checked_at": "2026-10-27T01:08:06Z",
      "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": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ2, TRACECLK, EXMC_ADD23."
      },
      {
        "number": "2",
        "name": "PE3",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ3, TRACED0, EXMC_ADD19."
      },
      {
        "number": "3",
        "name": "PE4",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ4, TRACED1, EXMC_ADD20."
      },
      {
        "number": "4",
        "name": "PE5",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ5, TRACED2, EXMC_ADD21."
      },
      {
        "number": "5",
        "name": "PE6",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ6, TRACED3, EXMC_ADD22."
      },
      {
        "number": "6",
        "name": "VBAT",
        "type": "power_in",
        "description": "Backup supply 1.65 to 3.6 V; tie to VCC with 100nF decoupling when no battery is used."
      },
      {
        "number": "7",
        "name": "PI8",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates RTCIC1, EIRQ8, EVENTOUT."
      },
      {
        "number": "8",
        "name": "PC13",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates RTCIC0, EIRQ13/WKUP3_1, RTC_OUT."
      },
      {
        "number": "9",
        "name": "PC14",
        "type": "output",
        "description": "Shared with XTAL32_OUT, external 32.768 kHz oscillator output; 5V-tolerant GPIO function also available."
      },
      {
        "number": "10",
        "name": "PC15",
        "type": "input",
        "description": "Shared with XTAL32_IN, external 32.768 kHz oscillator input; 5V-tolerant GPIO function also available."
      },
      {
        "number": "11",
        "name": "PI9",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ9, TIMA_6_TRIG, EXMC_DATA30."
      },
      {
        "number": "12",
        "name": "PI10",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ10, TIMA_6_PWM3, EXMC_DATA31."
      },
      {
        "number": "13",
        "name": "PI11",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ11, TIMA_6_PWM4, USBHS_ULPI_DIR."
      },
      {
        "number": "14",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground, 0 V reference for the device supply."
      },
      {
        "number": "15",
        "name": "VCC",
        "type": "power_in",
        "description": "Power supply 1.8 to 3.6 V; decouple to the nearest VSS pin."
      },
      {
        "number": "16",
        "name": "PF0",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ0, MCO_1, EXMC_ADD0."
      },
      {
        "number": "17",
        "name": "PF1",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ1, EXMC_ADD1, SPI3_NSS2."
      },
      {
        "number": "18",
        "name": "PF2",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ2, EXMC_ADD2, SPI3_NSS3."
      },
      {
        "number": "19",
        "name": "PF3",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; analog ADC3_IN9, alternates EIRQ3, EXMC_ADD3."
      },
      {
        "number": "20",
        "name": "PF4",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; analog ADC3_IN14, alternates EIRQ4, EXMC_ADD4."
      },
      {
        "number": "21",
        "name": "PF5",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; analog ADC3_IN15, alternates EIRQ5, EXMC_ADD5."
      },
      {
        "number": "22",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground, 0 V reference for the device supply."
      },
      {
        "number": "23",
        "name": "VCC",
        "type": "power_in",
        "description": "Power supply 1.8 to 3.6 V; decouple to the nearest VSS pin."
      },
      {
        "number": "24",
        "name": "PF6",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; analog ADC3_IN4, alternates EIRQ6, EXMC_RB2."
      },
      {
        "number": "25",
        "name": "PF7",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; analog ADC3_IN5, alternates EIRQ7, EXMC_RB3."
      },
      {
        "number": "26",
        "name": "PF8",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; analog ADC3_IN6, alternates EIRQ8, EXMC_RB4."
      },
      {
        "number": "27",
        "name": "PF9",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; analog ADC3_IN7, alternates EIRQ9, EXMC_RB5, DVP_PIXCLK."
      },
      {
        "number": "28",
        "name": "PF10",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; analog ADC3_IN8, alternates EIRQ10, EXMC_RB6."
      },
      {
        "number": "29",
        "name": "PH0",
        "type": "input",
        "description": "Shared with XTAL_IN, external high-speed oscillator input for a 4 to 25 MHz crystal or clock; 5V-tolerant GPIO function also available."
      },
      {
        "number": "30",
        "name": "PH1",
        "type": "output",
        "description": "Shared with XTAL_OUT, external high-speed oscillator output for a 4 to 25 MHz crystal; 5V-tolerant GPIO function also available."
      },
      {
        "number": "31",
        "name": "NRST",
        "type": "input",
        "description": "Reset input, active low; pull up to VCC through a resistor when not used."
      },
      {
        "number": "32",
        "name": "PC0",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; analog ADC123_IN10 and CMP3_INP4, alternates EIRQ0, EXMC_WE."
      },
      {
        "number": "33",
        "name": "PC1",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; analog ADC123_IN11, alternates EIRQ1, ETH_SMI_MDC."
      },
      {
        "number": "34",
        "name": "PC2",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; analog ADC123_IN12, alternates EIRQ2, EXMC_CE0."
      },
      {
        "number": "35",
        "name": "PC3",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; analog ADC123_IN13 and CMP1_INM4, alternates EIRQ3, EXMC_ALE."
      },
      {
        "number": "36",
        "name": "VCC",
        "type": "power_in",
        "description": "Power supply 1.8 to 3.6 V; decouple to the nearest VSS pin."
      },
      {
        "number": "37",
        "name": "AVSS_VREFL",
        "type": "power_in",
        "description": "Analog ground shared with the VREFL reference; tie to VSS when analog modules are unused."
      },
      {
        "number": "38",
        "name": "VREFH",
        "type": "power_in",
        "description": "Analog reference voltage, must not exceed AVCC; tie to AVCC when the ADC is unused."
      },
      {
        "number": "39",
        "name": "AVCC",
        "type": "power_in",
        "description": "Analog supply at the same voltage as VCC (1.8 to 3.6 V); tie to VCC when analog modules are unused."
      },
      {
        "number": "40",
        "name": "PA0",
        "type": "bidirectional",
        "description": "Not 5V tolerant GPIO, input must not exceed VCC; analog ADC123_IN0 and PGA_1, alternates EIRQ0, WKUP0_0."
      },
      {
        "number": "41",
        "name": "PA1",
        "type": "bidirectional",
        "description": "Not 5V tolerant GPIO, input must not exceed VCC; analog ADC123_IN1 and PGA_2, alternates EIRQ1."
      },
      {
        "number": "42",
        "name": "PA2",
        "type": "bidirectional",
        "description": "Not 5V tolerant GPIO, input must not exceed VCC; analog ADC123_IN2 and PGA_3, alternates EIRQ2."
      },
      {
        "number": "43",
        "name": "PH2",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; analog ADC3_IN16, alternates EIRQ2, FCMREF."
      },
      {
        "number": "44",
        "name": "PH3",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; analog ADC3_IN17, alternates EIRQ3, EXMC_CE0."
      },
      {
        "number": "45",
        "name": "PH4",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; analog ADC3_IN18, alternates EIRQ4, USBHS_ULPI_NXT."
      },
      {
        "number": "46",
        "name": "PH5",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; analog ADC3_IN19, alternates EIRQ5, EXMC_WE."
      },
      {
        "number": "47",
        "name": "PA3",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; analog ADC123_IN3, PGA123_VSS and CMP1_INP4, alternates EIRQ3, USBHS_ULPI_D0."
      },
      {
        "number": "48",
        "name": "AVSS",
        "type": "power_in",
        "description": "Analog ground, connect to VSS; tie to VSS when analog modules are unused."
      },
      {
        "number": "49",
        "name": "AVCC",
        "type": "power_in",
        "description": "Analog supply at the same voltage as VCC (1.8 to 3.6 V); tie to VCC when analog modules are unused."
      },
      {
        "number": "50",
        "name": "PA4",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; analog ADC12_IN4, DAC1_OUT1 and CMP2_INP3, alternates EIRQ4, USART5_CK."
      },
      {
        "number": "51",
        "name": "PA5",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; analog ADC12_IN5, DAC1_OUT2 and CMP2_INP4, alternates EIRQ5, KEYOUT1."
      },
      {
        "number": "52",
        "name": "PA6",
        "type": "bidirectional",
        "description": "Not 5V tolerant GPIO, input must not exceed VCC; analog ADC12_IN6, PGA_4 and CMP1_INP2, alternates EIRQ6, KEYOUT2."
      },
      {
        "number": "53",
        "name": "PA7",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; analog ADC12_IN7, PGA4_VSS and CMP123_INM3, alternates EIRQ7, KEYOUT3."
      },
      {
        "number": "54",
        "name": "PC4",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; analog ADC12_IN14, DAC2_OUT1 and CMP2_INM4, alternates EIRQ4, SDIO2_CD."
      },
      {
        "number": "55",
        "name": "PC5",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; analog ADC12_IN15, DAC2_OUT2 and CMP3_INM4, alternates EIRQ5, SDIO2_CMD."
      },
      {
        "number": "56",
        "name": "PB0",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; analog ADC12_IN8 and CMP3_INP2, alternates EIRQ0, KEYOUT4."
      },
      {
        "number": "57",
        "name": "PB1",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; analog ADC12_IN9 and CMP3_INP3, alternates EIRQ1, WKUP0_1."
      },
      {
        "number": "58",
        "name": "PB2",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; PVD2EXINP external PVD2 comparison input, alternates EIRQ2, VCOUT, WKUP0_2."
      },
      {
        "number": "59",
        "name": "PF11",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ11, EXMC_OE, DVP_DATA12."
      },
      {
        "number": "60",
        "name": "PF12",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ12, EXMC_ADD6."
      },
      {
        "number": "61",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground, 0 V reference for the device supply."
      },
      {
        "number": "62",
        "name": "VCC",
        "type": "power_in",
        "description": "Power supply 1.8 to 3.6 V; decouple to the nearest VSS pin."
      },
      {
        "number": "63",
        "name": "PF13",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ13, EXMC_ADD7, SPI6_NSS3."
      },
      {
        "number": "64",
        "name": "PF14",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ14, EXMC_ADD8, SPI6_NSS2."
      },
      {
        "number": "65",
        "name": "PF15",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ15, EXMC_ADD9, SPI6_NSS1."
      },
      {
        "number": "66",
        "name": "PG0",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ0, EXMC_ADD10."
      },
      {
        "number": "67",
        "name": "PG1",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ1, EXMC_ADD11."
      },
      {
        "number": "68",
        "name": "PE7",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ7, ADTRG1, EXMC_DATA4."
      },
      {
        "number": "69",
        "name": "PE8",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ8, CTCREF, EXMC_DATA5."
      },
      {
        "number": "70",
        "name": "PE9",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ9, ADTRG3, EXMC_DATA6."
      },
      {
        "number": "71",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground, 0 V reference for the device supply."
      },
      {
        "number": "72",
        "name": "VCC",
        "type": "power_in",
        "description": "Power supply 1.8 to 3.6 V; decouple to the nearest VSS pin."
      },
      {
        "number": "73",
        "name": "PE10",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates CMP1_INP3, EIRQ10, EXMC_DATA7."
      },
      {
        "number": "74",
        "name": "PE11",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ11, USBHS_ULPI_D7, EXMC_DATA8."
      },
      {
        "number": "75",
        "name": "PE12",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates CMP4_INM3, EIRQ12, EXMC_DATA9."
      },
      {
        "number": "76",
        "name": "PE13",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates CMP4_INM4, EIRQ13, EXMC_DATA10."
      },
      {
        "number": "77",
        "name": "PE14",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates CMP4_INP3, EIRQ14, EXMC_DATA11."
      },
      {
        "number": "78",
        "name": "PE15",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates CMP4_INP4, EIRQ15, EXMC_DATA12."
      },
      {
        "number": "79",
        "name": "PB10",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ10, ADTRG2, ETH_MII_RXER."
      },
      {
        "number": "80",
        "name": "PB11",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ11, USBHS_ULPI_D4, ETH_MII_RMII_TXEN."
      },
      {
        "number": "81",
        "name": "VCAP_1",
        "type": "passive",
        "description": "Core voltage stabilisation pin; connect a 0.047 µF or 0.1 µF external capacitor with ESR below 0.3 Ω near VSS."
      },
      {
        "number": "82",
        "name": "VCC",
        "type": "power_in",
        "description": "Power supply 1.8 to 3.6 V; decouple to the nearest VSS pin."
      },
      {
        "number": "83",
        "name": "PH6",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ6, EXMC_CE1, DVP_DATA8."
      },
      {
        "number": "84",
        "name": "PH7",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ7, EXMC_ALE, DVP_DATA9."
      },
      {
        "number": "85",
        "name": "PH8",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ8, EXMC_DATA16, DVP_HSYNC."
      },
      {
        "number": "86",
        "name": "PH9",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ9, EXMC_DATA17, DVP_DATA0."
      },
      {
        "number": "87",
        "name": "PH10",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ10, EXMC_DATA18, DVP_DATA1."
      },
      {
        "number": "88",
        "name": "PH11",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ11, EXMC_DATA19, DVP_DATA2."
      },
      {
        "number": "89",
        "name": "PH12",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ12, EXMC_DATA20, DVP_DATA3."
      },
      {
        "number": "90",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground, 0 V reference for the device supply."
      },
      {
        "number": "91",
        "name": "VCC",
        "type": "power_in",
        "description": "Power supply 1.8 to 3.6 V; decouple to the nearest VSS pin."
      },
      {
        "number": "92",
        "name": "PB12",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ12, VCOUT1, USBHS_ULPI_D5."
      },
      {
        "number": "93",
        "name": "PB13",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ13, VCOUT2, USBHS_ULPI_D6."
      },
      {
        "number": "94",
        "name": "PB14",
        "type": "bidirectional",
        "description": "Not 5V tolerant GPIO, input must not exceed VCC; alternates USBHS_DM, EIRQ14, VCOUT3."
      },
      {
        "number": "95",
        "name": "PB15",
        "type": "bidirectional",
        "description": "Not 5V tolerant GPIO, input must not exceed VCC; alternates USBHS_DP, EIRQ15, RTC_OUT."
      },
      {
        "number": "96",
        "name": "PD8",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ8, VCOUT4, EXMC_DATA13."
      },
      {
        "number": "97",
        "name": "PD9",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ9, VCOUT3, EXMC_DATA14."
      },
      {
        "number": "98",
        "name": "PD10",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ10, CAN2_TST_SAMPLE, EXMC_DATA15."
      },
      {
        "number": "99",
        "name": "PD11",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ11, CAN2_TST_CLOCK, EXMC_ADD16."
      },
      {
        "number": "100",
        "name": "PD12",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ12, EXMC_ADD17."
      },
      {
        "number": "101",
        "name": "PD13",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ13, EXMC_ADD18."
      },
      {
        "number": "102",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground, 0 V reference for the device supply."
      },
      {
        "number": "103",
        "name": "VCC",
        "type": "power_in",
        "description": "Power supply 1.8 to 3.6 V; decouple to the nearest VSS pin."
      },
      {
        "number": "104",
        "name": "PD14",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ14, ADTRG1, EXMC_DATA0."
      },
      {
        "number": "105",
        "name": "PD15",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ15, ADTRG2, EXMC_DATA1."
      },
      {
        "number": "106",
        "name": "PG2",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ2, ADTRG3, EXMC_ADD12."
      },
      {
        "number": "107",
        "name": "PG3",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ3, TIMA_9_TRIG, EXMC_ADD13."
      },
      {
        "number": "108",
        "name": "PG4",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ4, TIMA_9_PWM1, EXMC_ADD14."
      },
      {
        "number": "109",
        "name": "PG5",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ5, TIMA_9_PWM2, EXMC_ADD15."
      },
      {
        "number": "110",
        "name": "PG6",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ6, TIMA_9_PWM3, EXMC_RB0."
      },
      {
        "number": "111",
        "name": "PG7",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ7, TIMA_9_PWM4, USART8_CK."
      },
      {
        "number": "112",
        "name": "PG8",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ8, USART8_RTS, ETH_PPS_OUT."
      },
      {
        "number": "113",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground, 0 V reference for the device supply."
      },
      {
        "number": "114",
        "name": "VCC",
        "type": "power_in",
        "description": "Power supply 1.8 to 3.6 V; decouple to the nearest VSS pin."
      },
      {
        "number": "115",
        "name": "PC6",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ6, CTCREF, SDIO1_D6, DVP_DATA0."
      },
      {
        "number": "116",
        "name": "PC7",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ7, TIM4_2_OVH, I2S2_EXCK, SDIO1_D7."
      },
      {
        "number": "117",
        "name": "PC8",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ8, KEYOUT1, SDIO1_D0, DVP_DATA2."
      },
      {
        "number": "118",
        "name": "PC9",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ9, MCO_2, KEYOUT0, SDIO1_D1."
      },
      {
        "number": "119",
        "name": "PA8",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ8/WKUP2_0, MCO_1, USBFS_SOF."
      },
      {
        "number": "120",
        "name": "PA9",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ9/WKUP2_1, SDIO1_D2, USBFS_VBUS."
      },
      {
        "number": "121",
        "name": "PA10",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ10/WKUP2_2, SDIO1_CD, USBFS_ID, DVP_DATA1."
      },
      {
        "number": "122",
        "name": "PA11",
        "type": "bidirectional",
        "description": "Not 5V tolerant GPIO, input must not exceed VCC; alternates USBFS_DM, EIRQ11/WKUP2_3, SDIO2_CD."
      },
      {
        "number": "123",
        "name": "PA12",
        "type": "bidirectional",
        "description": "Not 5V tolerant GPIO, input must not exceed VCC; alternates USBFS_DP, EIRQ12/WKUP3_0, SDIO2_WP."
      },
      {
        "number": "124",
        "name": "PA13",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates JTMS_SWDIO, EIRQ13, SDIO2_D3."
      },
      {
        "number": "125",
        "name": "VCAP_2",
        "type": "passive",
        "description": "Core voltage stabilisation pin; connect a 0.047 µF or 0.1 µF external capacitor with ESR below 0.3 Ω near VSS."
      },
      {
        "number": "126",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground, 0 V reference for the device supply."
      },
      {
        "number": "127",
        "name": "VCC",
        "type": "power_in",
        "description": "Power supply 1.8 to 3.6 V; decouple to the nearest VSS pin."
      },
      {
        "number": "128",
        "name": "PH13",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ13, EXMC_DATA21."
      },
      {
        "number": "129",
        "name": "PH14",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ14, EXMC_DATA22, DVP_DATA4."
      },
      {
        "number": "130",
        "name": "PH15",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ15, EXMC_DATA23, DVP_DATA11."
      },
      {
        "number": "131",
        "name": "PI0",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ0, EXMC_DATA24, SPI2_NSS0."
      },
      {
        "number": "132",
        "name": "PI1",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ1, TIMA_8_TRIG, EXMC_DATA25."
      },
      {
        "number": "133",
        "name": "PI2",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ2, TIM6_8_PWMB, EXMC_DATA26."
      },
      {
        "number": "134",
        "name": "PI3",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ3, TIM4_2_CLK, EXMC_DATA27."
      },
      {
        "number": "135",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground, 0 V reference for the device supply."
      },
      {
        "number": "136",
        "name": "VCC",
        "type": "power_in",
        "description": "Power supply 1.8 to 3.6 V; decouple to the nearest VSS pin."
      },
      {
        "number": "137",
        "name": "PA14",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates JTCK_SWCLK, EIRQ14/WKUP3_2, SDIO2_D2."
      },
      {
        "number": "138",
        "name": "PA15",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates JTDI, EIRQ15/WKUP3_3, SDIO2_D1."
      },
      {
        "number": "139",
        "name": "PC10",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ10, CAN1_TST_SAMPLE, SDIO1_D2, DVP_DATA8."
      },
      {
        "number": "140",
        "name": "PC11",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ11, CAN1_TST_CLOCK, SDIO1_D3, DVP_DATA4."
      },
      {
        "number": "141",
        "name": "PC12",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ12, KEYOUT1, SDIO1_CK, DVP_DATA9."
      },
      {
        "number": "142",
        "name": "PD0",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ0, VCOUT, KEYOUT2, EXMC_DATA2."
      },
      {
        "number": "143",
        "name": "PD1",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ1, KEYOUT3, EXMC_DATA3."
      },
      {
        "number": "144",
        "name": "PD2",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ2, VCOUT4, KEYOUT4, SDIO1_CMD."
      },
      {
        "number": "145",
        "name": "PD3",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ3, VCOUT1, KEYOUT5, EXMC_CLK."
      },
      {
        "number": "146",
        "name": "PD4",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ4, VCOUT2, KEYOUT6, EXMC_OE."
      },
      {
        "number": "147",
        "name": "PD5",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ5, VCOUT3, KEYOUT7, EXMC_WE."
      },
      {
        "number": "148",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground, 0 V reference for the device supply."
      },
      {
        "number": "149",
        "name": "VCC",
        "type": "power_in",
        "description": "Power supply 1.8 to 3.6 V; decouple to the nearest VSS pin."
      },
      {
        "number": "150",
        "name": "PD6",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ6, ADTRG1, EXMC_RB0, DVP_DATA10."
      },
      {
        "number": "151",
        "name": "PD7",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ7, ADTRG2, EXMC_CE0."
      },
      {
        "number": "152",
        "name": "PG9",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ9, ADTRG3, EXMC_CE1, DVP_VSYNC."
      },
      {
        "number": "153",
        "name": "PG10",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ10, EXMC_CE2, DVP_DATA2."
      },
      {
        "number": "154",
        "name": "PG11",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ11, EXMC_RB7, DVP_DATA3, ETH_MII_RMII_TXEN."
      },
      {
        "number": "155",
        "name": "PG12",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ12, EXMC_CE3."
      },
      {
        "number": "156",
        "name": "PG13",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ13, EXMC_ADD24, DVP_VSYNC."
      },
      {
        "number": "157",
        "name": "PG14",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ14, EXMC_ADD25, DVP_DATA2."
      },
      {
        "number": "158",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground, 0 V reference for the device supply."
      },
      {
        "number": "159",
        "name": "VCC",
        "type": "power_in",
        "description": "Power supply 1.8 to 3.6 V; decouple to the nearest VSS pin."
      },
      {
        "number": "160",
        "name": "PG15",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ15, EXMC_BAA, DVP_DATA13."
      },
      {
        "number": "161",
        "name": "PB3",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates JTDO_SWO, EIRQ3/WKUP0_3, FCMREF, SDIO2_D0."
      },
      {
        "number": "162",
        "name": "PB4",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates NJTRST, EIRQ4/WKUP1_0, SDIO1_D0, DVP_DATA13."
      },
      {
        "number": "163",
        "name": "PB5",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ5/WKUP1_1, ADTRG3, USBHS_ULPI_D7, EXMC_ALE."
      },
      {
        "number": "164",
        "name": "PB6",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ6/WKUP1_2, ADTRG2, SDIO2_CK, EXMC_CE1."
      },
      {
        "number": "165",
        "name": "PB7",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ7/WKUP1_3, ADTRG1, SDIO1_D0, EXMC_ADV."
      },
      {
        "number": "166",
        "name": "PI13/MD",
        "type": "input",
        "description": "Mode input; must be held low when NRST is released, and a 4.7 kΩ pull-down to VSS is recommended; also USART3_TX."
      },
      {
        "number": "167",
        "name": "PB8",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ8, USBFS_DRVVBUS, SDIO1_D4, DVP_DATA6."
      },
      {
        "number": "168",
        "name": "PB9",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ9, SDIO1_D5, ETH_MII_TXD2, DVP_DATA7."
      },
      {
        "number": "169",
        "name": "PE0",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ0, MCO_1, ETH_MII_RMII_TXD1, EXMC_CE4."
      },
      {
        "number": "170",
        "name": "PE1",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ1, MCO_2, ETH_MII_RMII_TXD0, EXMC_CE5."
      },
      {
        "number": "171",
        "name": "PI12",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ12, EXMC_CLE."
      },
      {
        "number": "172",
        "name": "VCC",
        "type": "power_in",
        "description": "Power supply 1.8 to 3.6 V; decouple to the nearest VSS pin."
      },
      {
        "number": "173",
        "name": "PI4",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ4, EMB_PORT4, EXMC_CE6, DVP_DATA5."
      },
      {
        "number": "174",
        "name": "PI5",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ5, EXMC_CE7, DVP_VSYNC."
      },
      {
        "number": "175",
        "name": "PI6",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ6, EXMC_DATA28, DVP_DATA6."
      },
      {
        "number": "176",
        "name": "PI7",
        "type": "bidirectional",
        "description": "5V-tolerant GPIO with pull-up, push-pull/open-drain and low/mid/high drive; alternates EIRQ7, EXMC_DATA29, DVP_DATA7."
      }
    ],
    "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 the LQFP176 column of the pin function table (datasheet Table 2-1). Per-pin descri"
        ],
        "pages_sent": 84,
        "cost_usd": 0.1807,
        "at": "2026-10-27T01:07:08"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/5b18a88044d82cb3660d1434a04d37d8.pdf",
        "pages": 145,
        "sha256": "c971eaaaa12f48ef",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 176,
        "described": 176,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
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