HGX3485EIM

{
  "slug": "hgx3485eim",
  "version": "0.1.0",
  "type": "component",
  "description": "HGSEMI RS-485 / RS-422 ICs, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "interface",
    "hgx3485eim",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "hgx3485eim.kicad_sym",
    "hgx3485eim.kicad_mod",
    "hgx3485eim.glb",
    "hgx3485eim.step",
    "hgx3485eim.lbr",
    "docs/hero.png",
    "docs/hgx3485eim-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "hgx3485eim-hero.glb",
    "hgx3485eim-hero.overlay.json"
  ],
  "component": {
    "mpn": "HGX3485EIM",
    "manufacturer": "HGSEMI",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Interface",
    "subcategory": "RS-485 / RS-422 ICs",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588904744378753024",
    "parts": {
      "symbol": "hgx3485eim.kicad_sym",
      "footprint": "hgx3485eim.kicad_mod",
      "model_3d": "hgx3485eim-hero.glb",
      "model_3d_plain": "hgx3485eim.glb",
      "model_3d_step": "hgx3485eim-etched.step",
      "model_3d_step_plain": "hgx3485eim.step",
      "lbr": "hgx3485eim.lbr"
    },
    "distributor_links": {
      "lcsc": "C492114"
    },
    "distributor_check": {
      "checked_at": "2026-10-09T21:38:22Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "deferred",
        "error": "shared DigiKey quota guard: 547 calls left today"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "RO",
        "type": "output",
        "description": "Receiver output: with /RE low, RO goes high when A-B is at or above +200 mV and goes low when A-B is at or below -200 mV."
      },
      {
        "number": "2",
        "name": "/RE",
        "type": "input",
        "description": "Active-low receiver output enable: a high level puts RO in high impedance, and /RE high with DE low puts the device into low-power shutdown."
      },
      {
        "number": "3",
        "name": "DE",
        "type": "input",
        "description": "Driver output enable: a high level enables the driver outputs and a low level puts them in high impedance; with /RE high and DE low the device enters shutdown."
      },
      {
        "number": "4",
        "name": "DI",
        "type": "input",
        "description": "Driver input: while DE is high, a low on DI drives A low and B high, and a high on DI drives A high and B low."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device; all voltages are referenced to this pin."
      },
      {
        "number": "6",
        "name": "A",
        "type": "bidirectional",
        "description": "Non-inverting receiver input and non-inverting driver output on the RS-485 bus."
      },
      {
        "number": "7",
        "name": "B",
        "type": "bidirectional",
        "description": "Inverting receiver input and inverting driver output on the RS-485 bus; bus-side input voltage is rated -7 V to +13 V."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply pin; the device operates from 3.0 V to 3.6 V (3.3 V ±10%), with an absolute maximum supply of +7 V."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet does not map the ordering suffix of MPN HGX3485EIM to a package. The SOP-8 mapping is ; The pin-out diagram (Figure 1) is not legible in the extracted text, so pin numbers were taken only ; Bus-side pins A and B are typed bidirectional because they serve as both receiver inputs and driver "
        ],
        "pages_sent": 11,
        "cost_usd": 0.0403,
        "at": "2026-10-09T21:35:58"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588904744378753024",
        "pages": 11,
        "sha256": "3177a1be30293a81",
        "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": "hgx3485eim.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": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "hgx3485eim-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": "d549923909239dacd758b81dbf06b621e7192096f9fa54a1abca4397ca71447d",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}