ST3485EBDR-HXY

{
  "slug": "st3485ebdr-hxy",
  "version": "0.1.0",
  "type": "component",
  "description": "HXY MOSFET RS-485/RS-422 ICs, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "communication interface chip",
    "st3485ebdr-hxy",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "st3485ebdr-hxy.kicad_sym",
    "st3485ebdr-hxy.kicad_mod",
    "st3485ebdr-hxy.glb",
    "st3485ebdr-hxy.step",
    "st3485ebdr-hxy.lbr",
    "docs/hero.png",
    "docs/st3485ebdr-hxy-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "st3485ebdr-hxy-hero.glb",
    "st3485ebdr-hxy-hero.overlay.json",
    "st3485ebdr-hxy-etched.glb"
  ],
  "component": {
    "mpn": "ST3485EBDR-HXY",
    "manufacturer": "HXY MOSFET",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Communication Interface Chip",
    "subcategory": "RS-485/RS-422 ICs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/3a0bfb8eb93df2e311af7d96b006a67c.pdf",
    "parts": {
      "symbol": "st3485ebdr-hxy.kicad_sym",
      "footprint": "st3485ebdr-hxy.kicad_mod",
      "model_3d": "st3485ebdr-hxy-hero.glb",
      "model_3d_plain": "st3485ebdr-hxy-etched.glb",
      "model_3d_step": "st3485ebdr-hxy-etched.step",
      "model_3d_step_plain": "st3485ebdr-hxy.step",
      "lbr": "st3485ebdr-hxy.lbr"
    },
    "distributor_links": {
      "lcsc": "C22386565"
    },
    "distributor_check": {
      "checked_at": "2026-10-23T18:06:22Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "deferred",
        "error": "shared DigiKey quota guard: 887 calls left today"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "R",
        "type": "output",
        "description": "Receiver output (RO); when RE is low and A-B ≥ +0.2V RO is high, and when A-B ≤ -0.2V RO is low."
      },
      {
        "number": "2",
        "name": "RE",
        "type": "input",
        "description": "Receiver output enable, active low; RE low enables the receiver and RE high puts RO in high impedance (VIH 2.0V min, VIL 0.8V max)."
      },
      {
        "number": "3",
        "name": "DE",
        "type": "input",
        "description": "Driver output enable, active high; DE high enables the driver outputs A and B, DE low puts them in high impedance (VIH 2.0V min, VIL 0.8V max)."
      },
      {
        "number": "4",
        "name": "D",
        "type": "input",
        "description": "Driver input (DI); with DE high, a low on D forces A low and B high, and a high on D forces A high and B low (input range -0.3V to +7V)."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "6",
        "name": "A",
        "type": "bidirectional",
        "description": "Non-inverting receiver input and non-inverting driver output on the RS-485 bus (-7V to +13V)."
      },
      {
        "number": "7",
        "name": "B",
        "type": "bidirectional",
        "description": "Inverting receiver input and inverting driver output on the RS-485 bus (-7V to +13V)."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply, 3.0V to 3.6V operating range (absolute maximum 7V)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text+vision",
        "consensus_model": "claude-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet has no pin description table. Pin names and numbers come from the page 1 pin diagram. ",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 8,
        "cost_usd": 0.2258,
        "at": "2026-10-23T18:06:02"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/3a0bfb8eb93df2e311af7d96b006a67c.pdf",
        "pages": 8,
        "sha256": "cddae844c9c32522",
        "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": "st3485ebdr-hxy.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": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "st3485ebdr-hxy-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": "ae19df7f4ab863458f7f692cb0c64fe0a4351b478026019872c274d20b7ffa9f",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}