WF490RE VD S8T&R

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  "title": "WF490RE VD S8T&R",
  "brief": "WF RF Transceiver ICs, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
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  "component": {
    "mpn": "WF490RE VD S8T&R",
    "manufacturer": "WF",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Radio Frequency Chip/Antenna",
    "subcategory": "RF Transceiver ICs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/c204e91772de03a6102d6a099b63b1d9.pdf",
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    "distributor_links": {
      "lcsc": "C5182219"
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      "mouser": {
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    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin of the receiver (接地管脚)."
      },
      {
        "number": "2",
        "name": "ANT",
        "type": "input",
        "description": "RF signal input pin for the antenna."
      },
      {
        "number": "3",
        "name": "VDD",
        "type": "power_in",
        "description": "Supply pin; the datasheet specifies DC 2.0 V to 5.5 V, with absolute maximum VDD of -0.3 V to 5.5 V."
      },
      {
        "number": "4",
        "name": "CTH",
        "type": "input",
        "description": "Selects the reference signal mode for the internal data comparator; the CTH source impedance is 145 kΩ."
      },
      {
        "number": "5",
        "name": "DO",
        "type": "output",
        "description": "Demodulated data signal output."
      },
      {
        "number": "6",
        "name": "SHUT",
        "type": "input",
        "description": "Shutdown control: connect to VDD for shutdown mode and to GND for operating mode."
      },
      {
        "number": "7",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected; leave floating."
      },
      {
        "number": "8",
        "name": "REFOSC",
        "type": "input",
        "description": "External crystal connection pin; it can also be driven by an external clock through a coupling capacitor, with a peak-to-peak amplitude of 0.3 V to 0.7 V."
      }
    ],
    "provenance": {
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      "cad": "KiCad official (CC-BY-SA 4.0)",
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        "total": 8,
        "described": 8,
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  "metadata": {
    "specs": {
      "Manufacturer": "WF",
      "Package": "SOP-8",
      "Category": "Radio Frequency Chip/Antenna",
      "Pins": "8"
    },
    "characteristics": {
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          "name": "电源电压 (supply voltage, recommended)",
          "symbol": "VDD",
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          "typ": 3.3,
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        {
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          "min": -40,
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        {
          "name": "外部参考时钟峰峰值 (external clock drive on REFOSC)",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 0.3,
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        },
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        {
          "name": "接口电压 (interface voltage)",
          "symbol": "VIN",
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          "name": "结温 (junction temperature)",
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          "name": "储藏温度 (storage temperature)",
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          "unit": "℃",
          "min": -65,
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          "name": "ESD等级 (ESD HBM)",
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          "unit": "kV",
          "min": -8,
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          "conditions": "",
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        },
        {
          "name": "数据率 (data rate)",
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          "unit": "kbps",
          "min": null,
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          "max": 10,
          "conditions": "",
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        },
        {
          "name": "CTH 漏电流 (CTH leakage current)",
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          "kind": "electrical",
          "unit": "nA",
          "min": -100,
          "typ": null,
          "max": 100,
          "conditions": "TA = +85°C",
          "source_page": 4,
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        },
        {
          "name": "晶体频率精度 (crystal frequency accuracy)",
          "symbol": "",
          "kind": "tolerance",
          "unit": "ppm",
          "min": -20,
          "typ": null,
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          "conditions": "",
          "source_page": 5,
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  "author": {
    "name": "Ray",
    "email": "[email protected]"
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