WS3085W

{
  "schema_version": 1,
  "type": "component",
  "slug": "ws3085w",
  "title": "WS3085W",
  "brief": "GEC RS-485/RS-422 ICs, SOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "comm-uart",
    "ws3085w"
  ],
  "component": {
    "mpn": "WS3085W",
    "manufacturer": "GEC",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Comm/UART",
    "subcategory": "RS-485/RS-422 ICs",
    "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2204251600_GEC-WS3085W_C2999721.pdf",
    "parts": {
      "symbol": "ws3085w.kicad_sym",
      "footprint": "ws3085w.kicad_mod",
      "model_3d": "ws3085w-etched.glb",
      "model_3d_plain": "ws3085w.glb",
      "model_3d_step": "ws3085w-etched.step",
      "model_3d_step_plain": "ws3085w.step",
      "lbr": "ws3085w.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "RO",
        "type": "output",
        "description": "Receiver output. When the receiver is enabled and V(A)-V(B) > -50mV, RO drives high; when V(A)-V(B) < -200mV, RO drives low. Fail-safe: outputs high when inputs are open or shorted."
      },
      {
        "number": "2",
        "name": "/RE",
        "type": "input",
        "description": "Receiver output enable (active low). RO is enabled when /RE is low and disabled (high-Z) when /RE is high. With /RE=high and DE=low the chip enters low-power shutdown mode (typ. 1.8 µA)."
      },
      {
        "number": "3",
        "name": "DE",
        "type": "input",
        "description": "Driver output enable (active high). When DE is high the driver is enabled; when DE is low the driver outputs are high impedance. With /RE=high and DE=low the chip enters shutdown mode."
      },
      {
        "number": "4",
        "name": "DI",
        "type": "input",
        "description": "Driver input. When DI is low the non-inverting driver output (A) is forced low and the inverting output (B) is forced high; when DI is high, A is forced high and B is forced low. VIH ≥ 2.0V, VIL ≤ 0.8V."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device."
      },
      {
        "number": "6",
        "name": "A",
        "type": "bidirectional",
        "description": "RS-485/RS-422 bus interface: non-inverting driver output and non-inverting receiver input. Provides ±15kV HBM / ±12kV IEC 61000-4-2 contact-discharge ESD protection. Absolute range -8V to +13V."
      },
      {
        "number": "7",
        "name": "B",
        "type": "bidirectional",
        "description": "RS-485/RS-422 bus interface: inverting driver output and inverting receiver input. Provides ±15kV HBM / ±12kV IEC 61000-4-2 contact-discharge ESD protection. Absolute range -8V to +13V."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply, 3.0V to 5.25V (nominal 3.3V/5V). Bypass to GND with a 0.1 µF ceramic capacitor. Typical ICC 450 µA (max 600 µA) no-load; 1.8 µA typ in shutdown."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2204251600_GEC-WS3085W_C2999721.pdf",
        "pages": 10,
        "sha256": "83e24e937c025f43",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "ws3085w.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ws3085w-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "b8f06d5b755815b17b922d667f564a07770c3323f57a35c9001ed487187c462e",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "GEC",
      "Package": "SOP-8",
      "Category": "Comm/UART",
      "Pins": "8"
    }
  },
  "variants": [
    {
      "mpn": "WS3085WEESA",
      "kind": "packaging"
    }
  ],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "ws3085w"
  ],
  "discovery_pitch": "WS3085W (GEC) 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",
    "ws3085w.kicad_sym",
    "ws3085w.kicad_mod",
    "ws3085w.glb",
    "ws3085w.step",
    "ws3085w.lbr",
    "docs/hero.png",
    "docs/ws3085w-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-25T14:09:47.393Z"
}