HC32F4A0PITB-LQFP100

{
  "slug": "hc32f4a0pitb-lqfp100",
  "version": "0.1.0",
  "type": "component",
  "description": "XHSC Microcontrollers (MCU/MPU/SOC), LQFP-100(14x14). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "embedded processors & controllers",
    "hc32f4a0pitb-lqfp100",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "hc32f4a0pitb-lqfp100.kicad_sym",
    "hc32f4a0pitb-lqfp100.kicad_mod",
    "hc32f4a0pitb-lqfp100.glb",
    "hc32f4a0pitb-lqfp100.step",
    "hc32f4a0pitb-lqfp100.lbr",
    "docs/hero.png",
    "docs/hc32f4a0pitb-lqfp100-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "hc32f4a0pitb-lqfp100-hero.glb",
    "hc32f4a0pitb-lqfp100-hero.overlay.json",
    "hc32f4a0pitb-lqfp100-etched.glb"
  ],
  "component": {
    "mpn": "HC32F4A0PITB-LQFP100",
    "manufacturer": "XHSC",
    "package": "LQFP-100(14x14)",
    "pin_count": 100,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588907828816199680",
    "parts": {
      "symbol": "hc32f4a0pitb-lqfp100.kicad_sym",
      "footprint": "hc32f4a0pitb-lqfp100.kicad_mod",
      "model_3d": "hc32f4a0pitb-lqfp100-hero.glb",
      "model_3d_plain": "hc32f4a0pitb-lqfp100-etched.glb",
      "model_3d_step": "hc32f4a0pitb-lqfp100-etched.step",
      "model_3d_step_plain": "hc32f4a0pitb-lqfp100.step",
      "lbr": "hc32f4a0pitb-lqfp100.lbr"
    },
    "distributor_links": {
      "lcsc": "C963558"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T11:12:13Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "PE2",
        "type": "bidirectional",
        "description": "GPIO PE2, 5 V tolerant (Table 2-4); EIRQ2 external interrupt and TRACECLK trace clock output are multiplexed on this pin."
      },
      {
        "number": "2",
        "name": "PE3",
        "type": "bidirectional",
        "description": "GPIO PE3, 5 V tolerant (Table 2-4); EIRQ3 external interrupt and TRACED0 trace data output are multiplexed on this pin."
      },
      {
        "number": "3",
        "name": "PE4",
        "type": "bidirectional",
        "description": "GPIO PE4, 5 V tolerant (Table 2-4); EIRQ4 external interrupt and TRACED1 trace data output are multiplexed on this pin."
      },
      {
        "number": "4",
        "name": "PE5",
        "type": "bidirectional",
        "description": "GPIO PE5, 5 V tolerant (Table 2-4); EIRQ5 external interrupt and TRACED2 trace data output are multiplexed on this pin."
      },
      {
        "number": "5",
        "name": "PE6",
        "type": "bidirectional",
        "description": "GPIO PE6, 5 V tolerant (Table 2-4); EIRQ6 external interrupt and TRACED3 trace data output are multiplexed on this pin."
      },
      {
        "number": "6",
        "name": "VBAT",
        "type": "power_in",
        "description": "Backup battery supply, 1.65 V to 3.6 V (Table 3-5); if unused, short to VCC and add 100 nF decoupling (Section 2.4)."
      },
      {
        "number": "7",
        "name": "PC13",
        "type": "bidirectional",
        "description": "GPIO PC13 with RTCIC0 RTC time-stamp input; combined sink/source current of PC13, PC14, PC15 and PI8 must not exceed 20 mA (Section 3.3.11)."
      },
      {
        "number": "8",
        "name": "PC14",
        "type": "bidirectional",
        "description": "GPIO PC14 with XTAL32_OUT low-speed oscillator output; combined sink/source current of PC13, PC14, PC15 and PI8 must not exceed 20 mA (Section 3.3.11)."
      },
      {
        "number": "9",
        "name": "PC15",
        "type": "bidirectional",
        "description": "GPIO PC15 with XTAL32_IN low-speed oscillator input (32.768 kHz crystal); combined PC13/PC14/PC15/PI8 current must not exceed 20 mA (Section 3.3.11)."
      },
      {
        "number": "10",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference, 0 V (Section 2.4)."
      },
      {
        "number": "11",
        "name": "VCC",
        "type": "power_in",
        "description": "Digital supply, 1.8 V to 3.6 V; decouple close to VSS (Section 2.4, Table 3-5)."
      },
      {
        "number": "12",
        "name": "PH0",
        "type": "bidirectional",
        "description": "GPIO PH0 with XTAL_IN high-speed external oscillator input for a 4 to 25 MHz crystal or resonator (Table 3-18)."
      },
      {
        "number": "13",
        "name": "PH1",
        "type": "bidirectional",
        "description": "GPIO PH1 with XTAL_OUT high-speed external oscillator output for a 4 to 25 MHz crystal or resonator (Table 3-18)."
      },
      {
        "number": "14",
        "name": "NRST",
        "type": "input",
        "description": "Active-low reset input; pull up to VCC through a resistor when unused, and the low pulse must be at least 10 µs (Section 2.4, Table 3-7)."
      },
      {
        "number": "15",
        "name": "PC0",
        "type": "bidirectional",
        "description": "GPIO PC0 with ADC123_IN10 analog input and CMP3_INP4 comparator input; analog voltage must not exceed VREFH/AVCC (Section 2.4)."
      },
      {
        "number": "16",
        "name": "PC1",
        "type": "bidirectional",
        "description": "GPIO PC1 with ADC123_IN11 analog input; analog voltage must not exceed VREFH/AVCC (Section 2.4)."
      },
      {
        "number": "17",
        "name": "PC2",
        "type": "bidirectional",
        "description": "GPIO PC2 with ADC123_IN12 analog input; analog voltage must not exceed VREFH/AVCC (Section 2.4)."
      },
      {
        "number": "18",
        "name": "PC3",
        "type": "bidirectional",
        "description": "GPIO PC3 with ADC123_IN13 analog input and CMP1_INM4 comparator negative input; analog voltage must not exceed VREFH/AVCC (Section 2.4)."
      },
      {
        "number": "19",
        "name": "VCC",
        "type": "power_in",
        "description": "Digital supply, 1.8 V to 3.6 V (Table 3-5)."
      },
      {
        "number": "20",
        "name": "AVSS_VREFL",
        "type": "power_in",
        "description": "Analog ground shared with the VREFL reference; connect to the same voltage as VSS (Section 2.4)."
      },
      {
        "number": "21",
        "name": "VREFH",
        "type": "power_in",
        "description": "ADC/DAC high reference voltage, must not exceed AVCC (Section 2.4); tie to AVCC when the ADC is unused."
      },
      {
        "number": "22",
        "name": "AVCC",
        "type": "power_in",
        "description": "Analog supply, 1.8 V to 3.6 V (Table 3-5); tie to VCC when analog modules are unused (Section 2.4)."
      },
      {
        "number": "23",
        "name": "PA0",
        "type": "bidirectional",
        "description": "GPIO PA0, not 5 V tolerant (Table 2-4); ADC123_IN0 / PGA_1 / SH_1 analog input, input must not exceed VCC."
      },
      {
        "number": "24",
        "name": "PA1",
        "type": "bidirectional",
        "description": "GPIO PA1, not 5 V tolerant (Table 2-4); ADC123_IN1 / PGA_2 / SH_2 analog input, input must not exceed VCC."
      },
      {
        "number": "25",
        "name": "PA2",
        "type": "bidirectional",
        "description": "GPIO PA2, not 5 V tolerant (Table 2-4); ADC123_IN2 / PGA_3 / SH_3 analog input, input must not exceed VCC."
      },
      {
        "number": "26",
        "name": "PA3",
        "type": "bidirectional",
        "description": "GPIO PA3, 5 V tolerant (Table 2-4); ADC123_IN3 / PGA123_VSS / CMP1_INP4 analog input."
      },
      {
        "number": "27",
        "name": "AVSS",
        "type": "power_in",
        "description": "Analog ground; connect to the same voltage as VSS (Section 2.4)."
      },
      {
        "number": "28",
        "name": "AVCC",
        "type": "power_in",
        "description": "Analog supply, 1.8 V to 3.6 V (Table 3-5)."
      },
      {
        "number": "29",
        "name": "PA4",
        "type": "bidirectional",
        "description": "GPIO PA4, 5 V tolerant (Table 2-4); ADC12_IN4 analog input, DAC1_OUT1 DAC output and CMP2_INP3 comparator input."
      },
      {
        "number": "30",
        "name": "PA5",
        "type": "bidirectional",
        "description": "GPIO PA5, 5 V tolerant (Table 2-4); ADC12_IN5 analog input, DAC1_OUT2 DAC output and CMP2_INP4 comparator input."
      },
      {
        "number": "31",
        "name": "PA6",
        "type": "bidirectional",
        "description": "GPIO PA6, not 5 V tolerant (Table 2-4); ADC12_IN6, PGA_4 and CMP1_INP2 analog inputs."
      },
      {
        "number": "32",
        "name": "PA7",
        "type": "bidirectional",
        "description": "GPIO PA7, 5 V tolerant (Table 2-4); ADC12_IN7 analog input, PGA4_VSS ground input and CMP123_INM3 comparator input."
      },
      {
        "number": "33",
        "name": "PC4",
        "type": "bidirectional",
        "description": "GPIO PC4, 5 V tolerant (Table 2-4); ADC12_IN14 analog input, DAC2_OUT1 DAC output and CMP2_INM4 comparator input."
      },
      {
        "number": "34",
        "name": "PC5",
        "type": "bidirectional",
        "description": "GPIO PC5, 5 V tolerant (Table 2-4); ADC12_IN15 analog input, DAC2_OUT2 DAC output and CMP3_INM4 comparator input."
      },
      {
        "number": "35",
        "name": "PB0",
        "type": "bidirectional",
        "description": "GPIO PB0, 5 V tolerant (Table 2-4); ADC12_IN8 analog input and CMP3_INP2 comparator input, with EIRQ0 multiplexed."
      },
      {
        "number": "36",
        "name": "PB1",
        "type": "bidirectional",
        "description": "GPIO PB1, 5 V tolerant (Table 2-4); ADC12_IN9 analog input and CMP3_INP3 comparator input, with EIRQ1/WKUP0_1 multiplexed."
      },
      {
        "number": "37",
        "name": "PB2",
        "type": "bidirectional",
        "description": "GPIO PB2, 5 V tolerant (Table 2-4); PVD2EXINP external comparison input for PVD2, with EIRQ2/WKUP0_2 and VCOUT multiplexed."
      },
      {
        "number": "38",
        "name": "PE7",
        "type": "bidirectional",
        "description": "GPIO PE7, 5 V tolerant (Table 2-4); EIRQ7 external interrupt and ADTRG1 ADC external trigger, with EXMC_DATA4 multiplexed."
      },
      {
        "number": "39",
        "name": "PE8",
        "type": "bidirectional",
        "description": "GPIO PE8, 5 V tolerant (Table 2-4); EIRQ8 external interrupt and CTCREF reference input, with EXMC_DATA5 multiplexed."
      },
      {
        "number": "40",
        "name": "PE9",
        "type": "bidirectional",
        "description": "GPIO PE9, 5 V tolerant (Table 2-4); EIRQ9 external interrupt and ADTRG3 ADC external trigger, with EXMC_DATA6 multiplexed."
      },
      {
        "number": "41",
        "name": "PE10",
        "type": "bidirectional",
        "description": "GPIO PE10, 5 V tolerant (Table 2-4); CMP1_INP3 comparator input, with EIRQ10 and EXMC_DATA7 multiplexed."
      },
      {
        "number": "42",
        "name": "PE11",
        "type": "bidirectional",
        "description": "GPIO PE11, 5 V tolerant (Table 2-4); EIRQ11 external interrupt, with USBHS_ULPI_D7 and EXMC_DATA8 multiplexed."
      },
      {
        "number": "43",
        "name": "PE12",
        "type": "bidirectional",
        "description": "GPIO PE12, 5 V tolerant (Table 2-4); CMP4_INM3 comparator input, with EIRQ12 and EXMC_DATA9 multiplexed."
      },
      {
        "number": "44",
        "name": "PE13",
        "type": "bidirectional",
        "description": "GPIO PE13, 5 V tolerant (Table 2-4); CMP4_INM4 comparator input, with EIRQ13 and EXMC_DATA10 multiplexed."
      },
      {
        "number": "45",
        "name": "PE14",
        "type": "bidirectional",
        "description": "GPIO PE14, 5 V tolerant (Table 2-4); CMP4_INP3 comparator input, with EIRQ14 and EXMC_DATA11 multiplexed."
      },
      {
        "number": "46",
        "name": "PE15",
        "type": "bidirectional",
        "description": "GPIO PE15, 5 V tolerant (Table 2-4); CMP4_INP4 comparator input, with EIRQ15 and EXMC_DATA12 multiplexed."
      },
      {
        "number": "47",
        "name": "PB10",
        "type": "bidirectional",
        "description": "GPIO PB10, 5 V tolerant (Table 2-4); EIRQ10 external interrupt and ADTRG2 ADC external trigger, with QSPI_IO2 multiplexed."
      },
      {
        "number": "48",
        "name": "PB11",
        "type": "bidirectional",
        "description": "GPIO PB11, 5 V tolerant (Table 2-4); EIRQ11 external interrupt, with USBHS_ULPI_D4 and ETH_MII_RMII_TXEN multiplexed."
      },
      {
        "number": "49",
        "name": "VCAP_1",
        "type": "power_out",
        "description": "Core voltage (internal regulator) decoupling; use 0.047 µF or 0.1 µF with ESR below 0.3 Ω, and the VCAP total must match PWC_PWRC3.PDTS (Section 3.1.6, Table 3-1)."
      },
      {
        "number": "50",
        "name": "VCC",
        "type": "power_in",
        "description": "Digital supply, 1.8 V to 3.6 V (Table 3-5)."
      },
      {
        "number": "51",
        "name": "PB12",
        "type": "bidirectional",
        "description": "GPIO PB12, 5 V tolerant (Table 2-4); EIRQ12 external interrupt and VCOUT1 comparator output, with USBHS_ULPI_D5 multiplexed."
      },
      {
        "number": "52",
        "name": "PB13",
        "type": "bidirectional",
        "description": "GPIO PB13, 5 V tolerant (Table 2-4); EIRQ13 external interrupt and VCOUT2 comparator output, with USBHS_ULPI_D6 multiplexed."
      },
      {
        "number": "53",
        "name": "PB14",
        "type": "bidirectional",
        "description": "GPIO PB14, not 5 V tolerant (Table 2-4); USBHS_DM high-speed USB D- signal, with EIRQ14 and VCOUT3 multiplexed."
      },
      {
        "number": "54",
        "name": "PB15",
        "type": "bidirectional",
        "description": "GPIO PB15, not 5 V tolerant (Table 2-4); USBHS_DP high-speed USB D+ signal, with EIRQ15 and RTC_OUT multiplexed."
      },
      {
        "number": "55",
        "name": "PD8",
        "type": "bidirectional",
        "description": "GPIO PD8, 5 V tolerant (Table 2-4); EIRQ8 external interrupt and VCOUT4 comparator output, with USBHS_DRVVBUS and EXMC_DATA13 multiplexed."
      },
      {
        "number": "56",
        "name": "PD9",
        "type": "bidirectional",
        "description": "GPIO PD9, 5 V tolerant (Table 2-4); EIRQ9 external interrupt and VCOUT3 comparator output, with EXMC_DATA14 multiplexed."
      },
      {
        "number": "57",
        "name": "PD10",
        "type": "bidirectional",
        "description": "GPIO PD10, 5 V tolerant (Table 2-4); EIRQ10 external interrupt and CAN2_TST_SAMPLE, with EXMC_DATA15 multiplexed."
      },
      {
        "number": "58",
        "name": "PD11",
        "type": "bidirectional",
        "description": "GPIO PD11, 5 V tolerant (Table 2-4); EIRQ11 external interrupt and CAN2_TST_CLOCK, with EXMC_ADD16 multiplexed."
      },
      {
        "number": "59",
        "name": "PD12",
        "type": "bidirectional",
        "description": "GPIO PD12, 5 V tolerant (Table 2-4); EIRQ12 external interrupt, with EXMC_ADD17 multiplexed."
      },
      {
        "number": "60",
        "name": "PD13",
        "type": "bidirectional",
        "description": "GPIO PD13, 5 V tolerant (Table 2-4); EIRQ13 external interrupt, with EXMC_ADD18 multiplexed."
      },
      {
        "number": "61",
        "name": "PD14",
        "type": "bidirectional",
        "description": "GPIO PD14, 5 V tolerant (Table 2-4); EIRQ14 external interrupt and ADTRG1 ADC external trigger, with EXMC_DATA0 multiplexed."
      },
      {
        "number": "62",
        "name": "PD15",
        "type": "bidirectional",
        "description": "GPIO PD15, 5 V tolerant (Table 2-4); EIRQ15 external interrupt and ADTRG2 ADC external trigger, with EXMC_DATA1 multiplexed."
      },
      {
        "number": "63",
        "name": "PC6",
        "type": "bidirectional",
        "description": "GPIO PC6, 5 V tolerant (Table 2-4); EIRQ6 external interrupt and CTCREF reference input, with I2S1_MCK and SDIO1_D6 multiplexed."
      },
      {
        "number": "64",
        "name": "PC7",
        "type": "bidirectional",
        "description": "GPIO PC7, 5 V tolerant (Table 2-4); EIRQ7 external interrupt, with I2S2_MCK and USART6_RX multiplexed."
      },
      {
        "number": "65",
        "name": "PC8",
        "type": "bidirectional",
        "description": "GPIO PC8, 5 V tolerant (Table 2-4); EIRQ8 external interrupt, with KEYOUT1 and USART6_CK multiplexed."
      },
      {
        "number": "66",
        "name": "PC9",
        "type": "bidirectional",
        "description": "GPIO PC9, 5 V tolerant (Table 2-4); EIRQ9 external interrupt and MCO_2 clock output, with KEYOUT0 multiplexed."
      },
      {
        "number": "67",
        "name": "PA8",
        "type": "bidirectional",
        "description": "GPIO PA8, 5 V tolerant (Table 2-4); EIRQ8 / WKUP2_0 wake-up input and MCO_1 clock output, with USART1_CK multiplexed."
      },
      {
        "number": "68",
        "name": "PA9",
        "type": "bidirectional",
        "description": "GPIO PA9, 5 V tolerant (Table 2-4); EIRQ9 / WKUP2_1 wake-up input, with USART1_TX multiplexed."
      },
      {
        "number": "69",
        "name": "PA10",
        "type": "bidirectional",
        "description": "GPIO PA10, 5 V tolerant (Table 2-4); EIRQ10 / WKUP2_2 wake-up input, with USART1_RX multiplexed."
      },
      {
        "number": "70",
        "name": "PA11",
        "type": "bidirectional",
        "description": "GPIO PA11, not 5 V tolerant (Table 2-4); USBFS_DM full-speed USB D- signal, with EIRQ11 / WKUP2_3 multiplexed."
      },
      {
        "number": "71",
        "name": "PA12",
        "type": "bidirectional",
        "description": "GPIO PA12, not 5 V tolerant (Table 2-4); USBFS_DP full-speed USB D+ signal, with EIRQ12 / WKUP3_0 multiplexed."
      },
      {
        "number": "72",
        "name": "PA13",
        "type": "bidirectional",
        "description": "GPIO PA13, 5 V tolerant (Table 2-4); JTMS_SWDIO debug data pin, with EIRQ13 multiplexed."
      },
      {
        "number": "73",
        "name": "VCAP_2",
        "type": "power_out",
        "description": "Core voltage (internal regulator) decoupling; use 0.047 µF or 0.1 µF with ESR below 0.3 Ω, and the VCAP total must match PWC_PWRC3.PDTS (Section 3.1.6, Table 3-1)."
      },
      {
        "number": "74",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference, 0 V (Section 2.4)."
      },
      {
        "number": "75",
        "name": "VCC",
        "type": "power_in",
        "description": "Digital supply, 1.8 V to 3.6 V (Table 3-5)."
      },
      {
        "number": "76",
        "name": "PA14",
        "type": "bidirectional",
        "description": "GPIO PA14, 5 V tolerant (Table 2-4); JTCK_SWCLK debug clock pin, with EIRQ14 / WKUP3_2 multiplexed."
      },
      {
        "number": "77",
        "name": "PA15",
        "type": "bidirectional",
        "description": "GPIO PA15, 5 V tolerant (Table 2-4); JTDI JTAG data input, with EIRQ15 / WKUP3_3 multiplexed."
      },
      {
        "number": "78",
        "name": "PC10",
        "type": "bidirectional",
        "description": "GPIO PC10, 5 V tolerant (Table 2-4); EIRQ10 external interrupt and CAN1_TST_SAMPLE, with DVP_DATA8 multiplexed."
      },
      {
        "number": "79",
        "name": "PC11",
        "type": "bidirectional",
        "description": "GPIO PC11, 5 V tolerant (Table 2-4); EIRQ11 external interrupt and CAN1_TST_CLOCK, with DVP_DATA4 multiplexed."
      },
      {
        "number": "80",
        "name": "PC12",
        "type": "bidirectional",
        "description": "GPIO PC12, 5 V tolerant (Table 2-4); EIRQ12 external interrupt, with USART3_CK and SDIO1_CK multiplexed."
      },
      {
        "number": "81",
        "name": "PD0",
        "type": "bidirectional",
        "description": "GPIO PD0, 5 V tolerant (Table 2-4); EIRQ0 external interrupt and VCOUT comparator OR output, with EXMC_DATA2 multiplexed."
      },
      {
        "number": "82",
        "name": "PD1",
        "type": "bidirectional",
        "description": "GPIO PD1, 5 V tolerant (Table 2-4); EIRQ1 external interrupt, with EXMC_DATA3 multiplexed."
      },
      {
        "number": "83",
        "name": "PD2",
        "type": "bidirectional",
        "description": "GPIO PD2, 5 V tolerant (Table 2-4); EIRQ2 external interrupt and VCOUT4 comparator output, with SDIO1_CMD multiplexed."
      },
      {
        "number": "84",
        "name": "PD3",
        "type": "bidirectional",
        "description": "GPIO PD3, 5 V tolerant (Table 2-4); EIRQ3 external interrupt and VCOUT1 comparator output, with EXMC_CLK multiplexed."
      },
      {
        "number": "85",
        "name": "PD4",
        "type": "bidirectional",
        "description": "GPIO PD4, 5 V tolerant (Table 2-4); EIRQ4 external interrupt and VCOUT2 comparator output, with EXMC_OE multiplexed."
      },
      {
        "number": "86",
        "name": "PD5",
        "type": "bidirectional",
        "description": "GPIO PD5, 5 V tolerant (Table 2-4); EIRQ5 external interrupt and VCOUT3 comparator output, with EXMC_WE multiplexed."
      },
      {
        "number": "87",
        "name": "PD6",
        "type": "bidirectional",
        "description": "GPIO PD6, 5 V tolerant (Table 2-4); EIRQ6 external interrupt and ADTRG1 ADC external trigger, with EXMC_RB0 multiplexed."
      },
      {
        "number": "88",
        "name": "PD7",
        "type": "bidirectional",
        "description": "GPIO PD7, 5 V tolerant (Table 2-4); EIRQ7 external interrupt and ADTRG2 ADC external trigger, with EXMC_CE0 multiplexed."
      },
      {
        "number": "89",
        "name": "PB3",
        "type": "bidirectional",
        "description": "GPIO PB3, 5 V tolerant (Table 2-4); JTDO_TRACESWO debug/trace output, with EIRQ3 / WKUP0_3 and FCMREF multiplexed."
      },
      {
        "number": "90",
        "name": "PB4",
        "type": "bidirectional",
        "description": "GPIO PB4, 5 V tolerant (Table 2-4); NJTRST JTAG reset input, with EIRQ4 / WKUP1_0 multiplexed."
      },
      {
        "number": "91",
        "name": "PB5",
        "type": "bidirectional",
        "description": "GPIO PB5, 5 V tolerant (Table 2-4); EIRQ5 / WKUP1_1 wake-up input and ADTRG3 ADC external trigger, with USBHS_ULPI_D7 multiplexed."
      },
      {
        "number": "92",
        "name": "PB6",
        "type": "bidirectional",
        "description": "GPIO PB6, 5 V tolerant (Table 2-4); EIRQ6 / WKUP1_2 wake-up input and ADTRG2 ADC external trigger, with ETH_MII_TXCLK multiplexed."
      },
      {
        "number": "93",
        "name": "PB7",
        "type": "bidirectional",
        "description": "GPIO PB7, 5 V tolerant (Table 2-4); EIRQ7 / WKUP1_3 wake-up input and ADTRG1 ADC external trigger, with DVP_VSYNC multiplexed."
      },
      {
        "number": "94",
        "name": "PI13/MD",
        "type": "bidirectional",
        "description": "GPIO PI13 shared with the MD mode input; MD must be held low when NRST is released, and a 4.7 kΩ pull-down to VSS is recommended (Section 2.4)."
      },
      {
        "number": "95",
        "name": "PB8",
        "type": "bidirectional",
        "description": "GPIO PB8, 5 V tolerant (Table 2-4); EIRQ8 external interrupt and KEYOUT7, with USBFS_DRVVBUS multiplexed."
      },
      {
        "number": "96",
        "name": "PB9",
        "type": "bidirectional",
        "description": "GPIO PB9, 5 V tolerant (Table 2-4); EIRQ9 external interrupt and KEYOUT6, with SDIO1_D5 multiplexed."
      },
      {
        "number": "97",
        "name": "PE0",
        "type": "bidirectional",
        "description": "GPIO PE0, 5 V tolerant (Table 2-4); EIRQ0 external interrupt and MCO_1 clock output, with DVP_DATA2 multiplexed."
      },
      {
        "number": "98",
        "name": "PE1",
        "type": "bidirectional",
        "description": "GPIO PE1, 5 V tolerant (Table 2-4); EIRQ1 external interrupt and MCO_2 clock output, with DVP_DATA3 multiplexed."
      },
      {
        "number": "99",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference, 0 V (Section 2.4)."
      },
      {
        "number": "100",
        "name": "VCC",
        "type": "power_in",
        "description": "Digital supply, 1.8 V to 3.6 V (Table 3-5)."
      }
    ],
    "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: Table 2-5 lists VCAP_x with no I/O direction ('-'). I typed them as power_out because they are the i; Pins that are GPIO and also carry a dedicated function (XTAL, NRST, MD, RTCIC0) are typed bidirectio; Descriptions list only the EIRQ, analog, comparator, trigger and interface alternates shown in the T"
        ],
        "pages_sent": 84,
        "cost_usd": 0.466,
        "at": "2026-10-18T11:11:39"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588907828816199680",
        "pages": 145,
        "sha256": "c971eaaaa12f48ef",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 100,
        "described": 100,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "hc32f4a0pitb-lqfp100.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          16.0,
          16.0,
          1.5
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "51720097260ffba41c3062f85f67623721102fa535901c47cb555a1f444feeb3",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "hc32f4a0pitb-lqfp100-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          16.0,
          16.0,
          1.5
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "0325b71a2ffb716c3d02be2abff45dd9951b6634a87321cc6fc54f644eed2844",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}