HC32L110C4UA-SFN20TR

{
  "slug": "hc32l110c4ua-sfn20tr",
  "version": "0.1.0",
  "type": "component",
  "description": "XHSC Microcontrollers (MCU/MPU/SOC), WQFN-20-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "embedded processors & controllers",
    "hc32l110c4ua-sfn20tr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "hc32l110c4ua-sfn20tr.kicad_sym",
    "hc32l110c4ua-sfn20tr.kicad_mod",
    "hc32l110c4ua-sfn20tr.glb",
    "hc32l110c4ua-sfn20tr.step",
    "hc32l110c4ua-sfn20tr.lbr",
    "docs/hero.png",
    "docs/hc32l110c4ua-sfn20tr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "hc32l110c4ua-sfn20tr-hero.glb",
    "hc32l110c4ua-sfn20tr-hero.overlay.json",
    "hc32l110c4ua-sfn20tr-etched.glb"
  ],
  "component": {
    "mpn": "HC32L110C4UA-SFN20TR",
    "manufacturer": "XHSC",
    "package": "WQFN-20-EP(3x3)",
    "pin_count": 21,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588913571937849344",
    "parts": {
      "symbol": "hc32l110c4ua-sfn20tr.kicad_sym",
      "footprint": "hc32l110c4ua-sfn20tr.kicad_mod",
      "model_3d": "hc32l110c4ua-sfn20tr-hero.glb",
      "model_3d_plain": "hc32l110c4ua-sfn20tr-etched.glb",
      "model_3d_step": "hc32l110c4ua-sfn20tr-etched.step",
      "model_3d_step_plain": "hc32l110c4ua-sfn20tr.step",
      "lbr": "hc32l110c4ua-sfn20tr.lbr"
    },
    "distributor_links": {
      "lcsc": "C493491"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T00:11:54Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "RESETB/P00",
        "type": "input",
        "description": "Active-low chip reset input with a non-disconnectable pull-up (80 kΩ typ.), VIL max 0.3VCC, VIH min 0.7VCC, 200 mV Schmitt hysteresis and 100 ns filtered pulse; also usable as GPIO P00 digital input."
      },
      {
        "number": "2",
        "name": "XTHI/AIN7/VCIN7/P01",
        "type": "bidirectional",
        "description": "GPIO P01 that doubles as the 4-32 MHz XTH crystal oscillator input, AIN7/VCIN7 analog input, and UART0_RXD, I2C_SDA and timer functions."
      },
      {
        "number": "3",
        "name": "XTHO/AIN8/P02",
        "type": "bidirectional",
        "description": "GPIO P02 that doubles as the 4-32 MHz XTH crystal oscillator output and AIN8 analog input, also UART0_TXD and I2C_SCL."
      },
      {
        "number": "4",
        "name": "AVSS/DVSS",
        "type": "power_in",
        "description": "Chip ground; all VSS pins must be connected to the external supply system within its allowed range."
      },
      {
        "number": "5",
        "name": "VCAP",
        "type": "power_out",
        "description": "LDO core supply output for internal circuits only; a 4.7uF capacitor must be connected to it."
      },
      {
        "number": "6",
        "name": "AVCC/DVCC",
        "type": "power_in",
        "description": "Chip power supply, 1.8 V to 5.5 V; decoupling capacitors must be placed as close as possible to this pin."
      },
      {
        "number": "7",
        "name": "LVDIN1/P03",
        "type": "bidirectional",
        "description": "GPIO P03 that doubles as LVDIN1 analog monitoring input for the LVD, plus PCA, SPI_CS, Timer6, LPTimer, RTC_1HZ and VC0_OUT functions."
      },
      {
        "number": "8",
        "name": "XTLO/P15",
        "type": "bidirectional",
        "description": "GPIO P15 that doubles as the 32.768 kHz XTL crystal oscillator output, also I2C_SDA, UART0_RXD and LVD_OUT."
      },
      {
        "number": "9",
        "name": "XTLI/P14",
        "type": "bidirectional",
        "description": "GPIO P14 that doubles as the 32.768 kHz XTL crystal oscillator input, also I2C_SCL, PCA external clock input (ECI) and ADC_RDY."
      },
      {
        "number": "10",
        "name": "LVDIN2/VCIN0/P23",
        "type": "bidirectional",
        "description": "GPIO P23 that doubles as LVDIN2/VC0 analog input, also PCA_CH0, SPI_MISO, UART1_TXD and 38 kHz IR carrier output (IR_OUT)."
      },
      {
        "number": "11",
        "name": "P24/AIN0",
        "type": "bidirectional",
        "description": "GPIO P24 that doubles as AIN0 analog input, also VC1_OUT, SPI_MOSI, UART1_RXD and HCLK_OUT."
      },
      {
        "number": "12",
        "name": "P25/LVDIN3/VC1",
        "type": "bidirectional",
        "description": "GPIO P25 that doubles as LVDIN3/VC1 analog input, also LVD_OUT, LPUART_RXD and I2C_SDA."
      },
      {
        "number": "13",
        "name": "P26/AIN1",
        "type": "bidirectional",
        "description": "GPIO P26 that doubles as AIN1 analog input, also SPI_MOSI, LPUART_TXD and I2C_SCL."
      },
      {
        "number": "14",
        "name": "P27/SWDIO",
        "type": "bidirectional",
        "description": "GPIO P27 that doubles as the SWDIO serial-wire debug data pin; the datasheet lists P27/P31 as an alternative SWD/ISP programming interface."
      },
      {
        "number": "15",
        "name": "P31/SWCLK",
        "type": "bidirectional",
        "description": "GPIO P31 that doubles as the SWCLK serial-wire debug clock pin, also usable for SWD/ISP programming alongside P27."
      },
      {
        "number": "16",
        "name": "P32/AIN2/VCIN2",
        "type": "bidirectional",
        "description": "GPIO P32 that doubles as AIN2/VC2 analog input, also RTC_1HZ, UART1_TXD and VC1OUT."
      },
      {
        "number": "17",
        "name": "P33/AIN3/VCIN3",
        "type": "bidirectional",
        "description": "GPIO P33 that doubles as AIN3/VC3 analog input, also UART1_RXD, LPUART_RXD and XTL_OUT (32K oscillator output)."
      },
      {
        "number": "18",
        "name": "AIN4/VCIN4/P34",
        "type": "bidirectional",
        "description": "GPIO P34 that doubles as AIN4/VC4 analog input, also RTC_1HZ, LPUART_TXD and TIM0_EXT."
      },
      {
        "number": "19",
        "name": "AIN5/VCIN5/P35",
        "type": "bidirectional",
        "description": "GPIO P35 that doubles as AIN5/VC5 analog input; the datasheet recommends reserving P35 and P36 as the ISP programming interface, also UART1_TXD, UART0_TXD and I2C_SDA."
      },
      {
        "number": "20",
        "name": "AIN6/VCIN6/AVREF/P36",
        "type": "bidirectional",
        "description": "GPIO P36 that doubles as AIN6/VC6 analog input and AVREF external reference input, also UART1_RXD, UART0_RXD and I2C_SCL; the datasheet recommends reserving P35/P36 as the ISP programming interface."
      },
      {
        "number": "21",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "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: The exposed thermal pad is not given a pin number in the datasheet text. Per the note on page 18 it ; Pin types are KiCad classes assigned by me. Every GPIO-muxed pin is typed bidirectional, including c; The ordering code suffix SFN20TR maps to the QFN20(3*3) package, tape-and-reel, on page 67. The pin ",
          "exposed pad 21 added from the footprint"
        ],
        "pages_sent": 46,
        "cost_usd": 0.1657,
        "at": "2026-10-19T00:10:06"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588913571937849344",
        "pages": 69,
        "sha256": "9ca08dbf01e4bbb9",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 21,
        "described": 21,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "hc32l110c4ua-sfn20tr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.0,
          3.0,
          0.52
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "0ee4e1082236390795238cd34b082d96efd160d6292c636cc40201a5a30cdc63",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "hc32l110c4ua-sfn20tr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.0,
          3.0,
          0.52
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "280ab1be4fd509c6018a75fbe03c953e8a0de5c411f56962f16949365d90b495",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}