WS3079

{
  "schema_version": 1,
  "type": "component",
  "slug": "ws3079",
  "title": "WS3079",
  "brief": "GEC RS-485 / RS-422 ICs, SOP-14. 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",
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  "component": {
    "mpn": "WS3079",
    "manufacturer": "GEC",
    "package": "SOP-14",
    "pin_count": 14,
    "category": "Interface",
    "subcategory": "RS-485 / RS-422 ICs",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589835216647708672",
    "parts": {
      "symbol": "ws3079.kicad_sym",
      "footprint": "ws3079.kicad_mod",
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      "model_3d_plain": "ws3079-etched.glb",
      "model_3d_step": "ws3079-etched.step",
      "model_3d_step_plain": "ws3079.step",
      "lbr": "ws3079.lbr"
    },
    "distributor_links": {
      "lcsc": "C2691440"
    },
    "distributor_check": {
      "checked_at": "2026-10-20T18:19:43Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "H/F",
        "type": "input",
        "description": "Half/full-duplex select: tie H/F to VCC for half-duplex mode; tie to GND or leave open for full-duplex mode."
      },
      {
        "number": "2",
        "name": "RO",
        "type": "output",
        "description": "Receiver output: with the receiver enabled, RO goes high when V(A)-V(B) > -50 mV and low when V(A)-V(B) < -200 mV, and the datasheet states it is high for open or shorted inputs."
      },
      {
        "number": "3",
        "name": "RE",
        "type": "input",
        "description": "Receiver output enable, active low: RE low enables RO, and RE high disables the receiver; RE high with DE low puts the whole chip into shutdown."
      },
      {
        "number": "4",
        "name": "DE",
        "type": "input",
        "description": "Driver output enable: DE high enables the driver, and DE low disables it and puts the driver outputs in high-impedance."
      },
      {
        "number": "5",
        "name": "DI",
        "type": "input",
        "description": "Driver input: DI low forces the non-inverting output low and the inverting output high, and DI high forces the non-inverting output high and the inverting output low."
      },
      {
        "number": "6",
        "name": "SRL",
        "type": "input",
        "description": "Slew-rate limit select: tie to GND for 16 Mbps, tie to VCC for 500 Kbps, and leave floating for 250 Kbps."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device."
      },
      {
        "number": "8",
        "name": "TXP",
        "type": "input",
        "description": "Driver phase control: tie to GND or leave open for normal driver output polarity, and tie to VCC to reverse the driver output phase."
      },
      {
        "number": "9",
        "name": "Y",
        "type": "bidirectional",
        "description": "Driver non-inverting output, which is also the receiver non-inverting input in half-duplex mode."
      },
      {
        "number": "10",
        "name": "Z",
        "type": "bidirectional",
        "description": "Driver inverting output, which is also the receiver inverting input in half-duplex mode."
      },
      {
        "number": "11",
        "name": "B",
        "type": "input",
        "description": "Receiver inverting input presenting a 1/8 unit load; in full-duplex mode it is not connected to the receiver."
      },
      {
        "number": "12",
        "name": "A",
        "type": "input",
        "description": "Receiver non-inverting input presenting a 1/8 unit load; in full-duplex mode it is not connected to the receiver."
      },
      {
        "number": "13",
        "name": "RXP",
        "type": "input",
        "description": "Receiver phase control: tie to GND or leave open for normal receiver input polarity, and tie to VCC to reverse the receiver input phase."
      },
      {
        "number": "14",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply (recommended 3 V to 5.25 V per Table 6); bypass VCC to GND with a 0.1 µF capacitor."
      }
    ],
    "provenance": {
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        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Table 3 prints the full-duplex and half-duplex columns with the pin numbers offset (e.g. '9 - Y' and; The 3 V to 5.25 V supply range is quoted from Table 6 (recommended operating voltage), not from a pi; Only the SOP14 package is covered by the pinout table and packaging table in this datasheet; the pin"
        ],
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        "cost_usd": 0.0631,
        "at": "2026-10-20T18:17:39"
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        "pages": 13,
        "sha256": "76a7848bfb6b0627",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 14,
        "described": 14,
        "cites_pages": true,
        "refuses_to_fabricate": true
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      "footprint": "viewers/footprint.html"
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "GEC",
      "Package": "SOP-14",
      "Category": "Interface",
      "Pins": "14"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "76a7848bfb6b0627f13fdc63246dce8036a252e3574f80ef1763551d3058d164",
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          "name": "Differential driver output, RS-422 load",
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          "unit": "伏",
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          "typ": null,
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        {
          "name": "Input current, Y/Z/A/B, bus pins at high input voltage",
          "symbol": "IIN4",
          "kind": "electrical",
          "unit": "微安",
          "min": null,
          "typ": null,
          "max": 125,
          "conditions": "DE = GND, VCC=GND or 3.6V, VIN=12V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Input current, Y/Z/A/B, bus pins at negative input voltage",
          "symbol": "IIN4",
          "kind": "electrical",
          "unit": "微安",
          "min": -100,
          "typ": null,
          "max": null,
          "conditions": "DE = GND, VCC=GND or 3.6V, VIN=-7V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "SRL input low voltage",
          "symbol": "SRL_L",
          "kind": "electrical",
          "unit": "伏",
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          "typ": null,
          "max": 0.4,
          "conditions": "",
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        },
        {
          "name": "Driver output short-circuit current",
          "symbol": "IOD1",
          "kind": "electrical",
          "unit": "毫安",
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          "conditions": "-7V≤VOUT≤VCC",
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        {
          "name": "Driver output short-circuit current",
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          "kind": "electrical",
          "unit": "毫安",
          "min": 25,
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          "conditions": "0V≤VOUT≤12V",
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        {
          "name": "Driver output short-circuit current",
          "symbol": "IOD1",
          "kind": "electrical",
          "unit": "毫安",
          "min": -25,
          "typ": null,
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          "conditions": "0V≤VOUT≤VCC",
          "source_page": 2,
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        {
          "name": "Receiver differential input threshold voltage",
          "symbol": "VTH",
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          "unit": "毫伏",
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          "conditions": "-7V≤VCM≤+12V",
          "source_page": 2,
          "source": "datasheet"
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        {
          "name": "Receiver output low voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "伏",
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          "max": 0.4,
          "conditions": "IO=4mA,VID=-1V",
          "source_page": 3,
          "source": "datasheet"
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        {
          "name": "Receiver output high-impedance leakage current",
          "symbol": "IOZR",
          "kind": "electrical",
          "unit": "微安",
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          "typ": null,
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          "conditions": "0.4V≤VO≤2.4V",
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        {
          "name": "Receiver output short-circuit current",
          "symbol": "IOSR",
          "kind": "electrical",
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          "conditions": "0V≤VRO≤VCC",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Supply current, static, driver enabled",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "毫安",
          "min": null,
          "typ": 0.8,
          "max": 1.5,
          "conditions": "No load, RE =GND, DI=GND or VCC, DE=VCC",
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          "source": "datasheet"
        },
        {
          "name": "Supply current, static, driver disabled",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "毫安",
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          "typ": 0.8,
          "max": 1.5,
          "conditions": "No load, RE =GND, DI=GND or VCC, DE=GND",
          "source_page": 3,
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        },
        {
          "name": "Shutdown current",
          "symbol": "ISHDN",
          "kind": "electrical",
          "unit": "微安",
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          "max": 180,
          "conditions": "DE GND,RE Vcc",
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          "source": "datasheet"
        },
        {
          "name": "ESD contact discharge, A and B pins (IEC 61000-4-2)",
          "symbol": "",
          "kind": "electrical",
          "unit": "千伏",
          "min": -12,
          "typ": null,
          "max": 12,
          "conditions": "接触放电模型, IEC 61000-4-2, A管脚,B管脚",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "ESD human body model, A and B pins",
          "symbol": "",
          "kind": "electrical",
          "unit": "千伏",
          "min": -15,
          "typ": null,
          "max": 15,
          "conditions": "人体模型 (A管脚,B管脚)",
          "source_page": 3,
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        },
        {
          "name": "ESD human body model, other pins",
          "symbol": "",
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          "unit": "千伏",
          "min": -4,
          "typ": null,
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          "conditions": "人体模型 (其他管脚)",
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        },
        {
          "name": "Maximum operating voltage",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 10,
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        },
        {
          "name": "Logic pin voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 7,
          "conditions": "DE，RE，DI，RO SRL，TXP，RXP，H/F",
          "source_page": 10,
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        },
        {
          "name": "Bus pin voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -8,
          "typ": null,
          "max": 13,
          "conditions": "A，B，Y，Z",
          "source_page": 10,
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        },
        {
          "name": "Storage temperature",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -65,
          "typ": null,
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          "conditions": "",
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        {
          "name": "Maximum junction temperature",
          "symbol": "TJ",
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          "unit": "℃",
          "min": null,
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        {
          "name": "ESD-HBM rating",
          "symbol": "ESD-HBM",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
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        {
          "name": "Recommended operating supply voltage",
          "symbol": "VDD",
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        {
          "name": "Operating temperature",
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          "unit": "℃",
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          "name": "Driver propagation delay (SRL=VCC, 500 kbps)",
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