WK2204-IQNG

{
  "schema_version": 1,
  "type": "component",
  "slug": "wk2204-iqng",
  "title": "WK2204-IQNG",
  "brief": "WEIKAI Interface - Specialized, QFN-24-EP(4x4). 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",
    "interface",
    "wk2204-iqng",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "WK2204-IQNG",
    "manufacturer": "WEIKAI",
    "package": "QFN-24-EP(4x4)",
    "pin_count": 25,
    "category": "Interface",
    "subcategory": "Interface - Specialized",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8756848210214166528",
    "parts": {
      "symbol": "wk2204-iqng.kicad_sym",
      "footprint": "wk2204-iqng.kicad_mod",
      "model_3d": "wk2204-iqng-etched.glb",
      "model_3d_plain": "wk2204-iqng.glb",
      "model_3d_step": "wk2204-iqng-etched.step",
      "model_3d_step_plain": "wk2204-iqng.step",
      "lbr": "wk2204-iqng.lbr"
    },
    "distributor_links": {
      "lcsc": "C401040"
    },
    "pins": [
      {
        "number": "1",
        "name": "OSCI",
        "type": "input",
        "description": "Crystal oscillator input; requires parallel 1MΩ startup resistor with oscillator."
      },
      {
        "number": "2",
        "name": "OSCO",
        "type": "output",
        "description": "Crystal oscillator output."
      },
      {
        "number": "3",
        "name": "MP3",
        "type": "bidirectional",
        "description": "Multifunction pin: SSEL (SPI chip select, active low) in SPI mode, IA1 (IIC device address high) in IIC mode, or IR (UART infrared mode: 0=infrared, 1=normal UART, default high) in UART mode."
      },
      {
        "number": "4",
        "name": "MP2",
        "type": "bidirectional",
        "description": "Multifunction pin: SCLK (SPI clock input) in SPI mode, SCL (IIC clock input) in IIC mode, or MRX (UART main port receive) in UART mode."
      },
      {
        "number": "5",
        "name": "MP1",
        "type": "bidirectional",
        "description": "Multifunction pin: MOSI (SPI slave data input) in SPI mode, IA0 (IIC device address low) in IIC mode, or MTX (UART main port transmit) in UART mode."
      },
      {
        "number": "6",
        "name": "MP0",
        "type": "bidirectional",
        "description": "Multifunction pin: MISO (SPI slave data output) in SPI mode, SDA (IIC data line) in IIC mode, or NC (no connection) in UART mode."
      },
      {
        "number": "7",
        "name": "RTS4",
        "type": "output",
        "description": "Sub-channel 4 Request To Send output, active low; indicates receive ready and used for RS-485 automatic transceiver control."
      },
      {
        "number": "8",
        "name": "RX4",
        "type": "input",
        "description": "Sub-channel 4 serial data input."
      },
      {
        "number": "9",
        "name": "TX4",
        "type": "output",
        "description": "Sub-channel 4 serial data output."
      },
      {
        "number": "10",
        "name": "CTS4",
        "type": "input",
        "description": "Sub-channel 4 Clear To Send input, active low; indicates connected UART is ready to receive data."
      },
      {
        "number": "11",
        "name": "RSTN",
        "type": "input",
        "description": "Hardware reset input, active low."
      },
      {
        "number": "12",
        "name": "IRQ",
        "type": "output",
        "description": "Interrupt output signal, active low; external pull-up resistor (5.1kΩ typical) recommended."
      },
      {
        "number": "13",
        "name": "CTS2",
        "type": "input",
        "description": "Sub-channel 2 Clear To Send input, active low; indicates connected UART is ready to receive data."
      },
      {
        "number": "14",
        "name": "TX2",
        "type": "output",
        "description": "Sub-channel 2 serial data output."
      },
      {
        "number": "15",
        "name": "RX2",
        "type": "input",
        "description": "Sub-channel 2 serial data input."
      },
      {
        "number": "16",
        "name": "RTS2",
        "type": "output",
        "description": "Sub-channel 2 Request To Send output, active low; indicates receive ready and used for RS-485 automatic transceiver control."
      },
      {
        "number": "17",
        "name": "GND",
        "type": "power_in",
        "description": "Power ground."
      },
      {
        "number": "18",
        "name": "MD0",
        "type": "input",
        "description": "Main interface mode selection bit 0 (MD1MD0: 00=SPI, 10=IIC, 11=UART); internal pull-up circuit, defaults high."
      },
      {
        "number": "19",
        "name": "MD1",
        "type": "input",
        "description": "Main interface mode selection bit 1 (MD1MD0: 00=SPI, 10=IIC, 11=UART); internal pull-up circuit, defaults high."
      },
      {
        "number": "20",
        "name": "TX1",
        "type": "output",
        "description": "Sub-channel 1 serial data output."
      },
      {
        "number": "21",
        "name": "RX1",
        "type": "input",
        "description": "Sub-channel 1 serial data input."
      },
      {
        "number": "22",
        "name": "TX3",
        "type": "output",
        "description": "Sub-channel 3 serial data output."
      },
      {
        "number": "23",
        "name": "RX3",
        "type": "input",
        "description": "Sub-channel 3 serial data input."
      },
      {
        "number": "24",
        "name": "VCC",
        "type": "power_in",
        "description": "Power supply input, operating range 2.0V to 3.6V."
      },
      {
        "number": "25",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.2",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.2",
        "primary_model": "claude-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-4-6",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "exposed pad 25 added from the footprint"
        ],
        "pages_sent": 42,
        "cost_usd": 0.387,
        "at": "2026-09-22T00:51:08"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8756848210214166528",
        "pages": 42,
        "sha256": "6f7a3ea82e2ab396",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 25,
        "described": 25,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "WEIKAI",
      "Package": "QFN-24-EP(4x4)",
      "Category": "Interface",
      "Pins": "25"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "wk2204-iqng"
  ],
  "discovery_pitch": "WK2204-IQNG (WEIKAI) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "wk2204-iqng.kicad_sym",
    "wk2204-iqng.kicad_mod",
    "wk2204-iqng.glb",
    "wk2204-iqng.step",
    "wk2204-iqng.lbr",
    "docs/hero.png",
    "docs/wk2204-iqng-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-25T14:06:04.815Z"
}