WS3222ECY

{
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  "type": "component",
  "slug": "ws3222ecy",
  "title": "WS3222ECY",
  "brief": "GEC RS232 ICs, TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
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    "interface",
    "ws3222ecy",
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  "component": {
    "mpn": "WS3222ECY",
    "manufacturer": "GEC",
    "package": "TSSOP-20",
    "pin_count": 20,
    "category": "Interface",
    "subcategory": "RS232 ICs",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8559358464590692352",
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      "model_3d_step": "ws3222ecy-etched.step",
      "model_3d_step_plain": "ws3222ecy.step",
      "lbr": "ws3222ecy.lbr"
    },
    "distributor_links": {
      "lcsc": "C2691424"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T12:41:17Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "XEN",
        "type": "input",
        "description": "Receiver enable, active low; a high level forces the receiver outputs into high impedance."
      },
      {
        "number": "2",
        "name": "C1+",
        "type": "passive",
        "description": "Positive terminal of the boost charge-pump capacitor."
      },
      {
        "number": "3",
        "name": "V+",
        "type": "power_out",
        "description": "Positive supply generated by the charge pump, stated as +5.4V."
      },
      {
        "number": "4",
        "name": "C1-",
        "type": "passive",
        "description": "Negative terminal of the boost charge-pump capacitor."
      },
      {
        "number": "5",
        "name": "C2+",
        "type": "passive",
        "description": "Positive terminal of the inverting charge-pump capacitor."
      },
      {
        "number": "6",
        "name": "C2-",
        "type": "passive",
        "description": "Negative terminal of the inverting charge-pump capacitor."
      },
      {
        "number": "7",
        "name": "V-",
        "type": "power_out",
        "description": "Negative supply generated by the charge pump, stated as -5.4V."
      },
      {
        "number": "8",
        "name": "T2OUT",
        "type": "output",
        "description": "Second RS-232 driver output."
      },
      {
        "number": "9",
        "name": "R2IN",
        "type": "input",
        "description": "Second RS-232 receiver input."
      },
      {
        "number": "10",
        "name": "R2OUT",
        "type": "output",
        "description": "Second TTL/CMOS receiver output."
      },
      {
        "number": "11",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected."
      },
      {
        "number": "12",
        "name": "T2IN",
        "type": "input",
        "description": "Second TTL/CMOS driver input."
      },
      {
        "number": "13",
        "name": "T1IN",
        "type": "input",
        "description": "First TTL/CMOS driver input."
      },
      {
        "number": "14",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected."
      },
      {
        "number": "15",
        "name": "R1OUT",
        "type": "output",
        "description": "First TTL/CMOS receiver output."
      },
      {
        "number": "16",
        "name": "R1IN",
        "type": "input",
        "description": "First RS-232 receiver input."
      },
      {
        "number": "17",
        "name": "T1OUT",
        "type": "output",
        "description": "First RS-232 driver output."
      },
      {
        "number": "18",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "19",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage, +3V to +3.6V."
      },
      {
        "number": "20",
        "name": "XSD",
        "type": "input",
        "description": "Shutdown control, active low; a low level shuts down the drivers and voltage converter."
      }
    ],
    "provenance": {
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        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The pin table (Table 3) is the only pin definition in the datasheet and it applies to the WS3222E fa; Pins 11 and 14 are marked NC (not connected) in the datasheet, so they are listed as unconnected."
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        "at": "2026-10-18T12:39:42"
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        "described": 20,
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  "metadata": {
    "specs": {
      "Manufacturer": "GEC",
      "Package": "TSSOP-20",
      "Category": "Interface",
      "Pins": "20"
    },
    "characteristics": {
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          "unit": "℃",
          "min": -40,
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          "conditions": "-40°C to +85°C Commercial Grade",
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          "name": "电荷泵电容 (charge pump capacitor) C1P, C1N, C2P, C2N",
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          "name": "接收器输出 输出漏电流 (receiver output leakage)",
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        {
          "name": "接收器输入 输入电压摆幅 (receiver input voltage range)",
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          "unit": "V",
          "min": -20,
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          "min": 3,
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          "name": "驱动器输出 输出电压幅值 (driver output voltage swing)",
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          "name": "驱动器输出 输出电阻 (driver output resistance)",
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          "min": 300,
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          "name": "驱动器输出 输出短路电流 (driver short-circuit current)",
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          "name": "驱动器输出 输出漏电流 (driver output leakage)",
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        {
          "name": "最大数据传输速率 (maximum data rate)",
          "symbol": "",
          "kind": "timing",
          "unit": "Kbps",
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          "typ": null,
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          "source_page": 2,
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          "name": "传输限摆率 (driver transition slew rate)",
          "symbol": "",
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          "unit": "V/uS",
          "min": 6,
          "typ": null,
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          "conditions": "RL = 3~7kΩ, CL = 150pF to 1000pF, One Transmitter Switching, TA = 25°C, measured from 3V to –3V or –3V to 3V",
          "source_page": 2,
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        {
          "name": "接收器输入延时 (receiver input propagation delay)",
          "symbol": "",
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          "max": null,
          "conditions": "CL = 150pF",
          "source_page": 3,
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        {
          "name": "接收器输出延时 (receiver output propagation delay)",
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        {
          "name": "接收器输入输出延时之差 (receiver propagation delay difference)",
          "symbol": "",
          "kind": "timing",
          "unit": "nS",
          "min": null,
          "typ": 50,
          "max": null,
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        {
          "name": "接收器输出高到关断时间 (receiver output high to shutdown time)",
          "symbol": "",
          "kind": "timing",
          "unit": "uS",
          "min": null,
          "typ": 0.2,
          "max": null,
          "conditions": "",
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        },
        {
          "name": "ESD HBM (RS-232 inputs and outputs)",
          "symbol": "",
          "kind": "electrical",
          "unit": "KV",
          "min": -15,
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          "max": 15,
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        {
          "name": "ESD EN61000-4-2 contact discharge",
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          "kind": "electrical",
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        {
          "name": "ESD EN61000-4-2 air gap discharge",
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        {
          "name": "最大工作电压 (maximum operating voltage)",
          "symbol": "VCC",
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          "unit": "V",
          "min": null,
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          "max": 7,
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          "name": "正电荷泵 (positive charge pump)",
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          "name": "负电荷泵 (negative charge pump)",
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          "name": "驱动器输入脚 (driver input pins)",
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          "kind": "absolute_maximum",
          "unit": "V",
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          "name": "存储温度 (storage temperature)",
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          "unit": "℃",
          "min": -65,
          "typ": null,
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          "conditions": "",
          "source_page": 8,
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        },
        {
          "name": "最高结温 (maximum junction temperature)",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 150,
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          "name": "ESD-HBM",
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          "unit": "V",
          "min": null,
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          "conditions": "",
          "source_page": 8,
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        {
          "name": "推荐工作电压 (recommended operating voltage)",
          "symbol": "VDD",
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          "unit": "V",
          "min": 3,
          "typ": 3.3,
          "max": 3.6,
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          "source_page": 8,
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        {
          "name": "工作温度 (operating temperature)",
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          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 8,
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