HX485-S

{
  "slug": "hx485-s",
  "version": "0.1.0",
  "type": "component",
  "description": "ZHHXDZ RS-485 / RS-422 ICs, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
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    "interface",
    "hx485-s",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "hx485-s.kicad_sym",
    "hx485-s.kicad_mod",
    "hx485-s.glb",
    "hx485-s.step",
    "hx485-s.lbr",
    "docs/hero.png",
    "docs/hx485-s-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "hx485-s-hero.glb",
    "hx485-s-hero.overlay.json",
    "hx485-s-etched.glb"
  ],
  "component": {
    "mpn": "HX485-S",
    "manufacturer": "ZHHXDZ",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Interface",
    "subcategory": "RS-485 / RS-422 ICs",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603105147933777920",
    "parts": {
      "symbol": "hx485-s.kicad_sym",
      "footprint": "hx485-s.kicad_mod",
      "model_3d": "hx485-s-hero.glb",
      "model_3d_plain": "hx485-s-etched.glb",
      "model_3d_step": "hx485-s-etched.step",
      "model_3d_step_plain": "hx485-s.step",
      "lbr": "hx485-s.lbr"
    },
    "distributor_links": {
      "lcsc": "C19186115"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T16:25:35Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "RO",
        "type": "output",
        "description": "Receiver data output: per the receiver truth table, RO is high for a differential input of -50 mV, for an open-circuit or short-circuit input (fail-safe), and low for -200 mV when RE is low, and it goes high-impedance when RE is high with DE high."
      },
      {
        "number": "2",
        "name": "RE",
        "type": "input",
        "description": "Receiver output enable, active low: the receiver output is effective when RE is low and is placed in high-impedance when RE is high."
      },
      {
        "number": "3",
        "name": "DE",
        "type": "input",
        "description": "Driver output enable, active high: the chip operates in transmit mode when DE is high, and with DE low and RE low it operates in receive mode with the A/B driver outputs in high-impedance."
      },
      {
        "number": "4",
        "name": "DI",
        "type": "input",
        "description": "Driver data input: with DE high, DI high drives A high and B low, and DI low drives A low and B high."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "6",
        "name": "A",
        "type": "bidirectional",
        "description": "Non-inverting driver differential output and receiver differential input; the datasheet rates ESD protection at ±15 kV (human body model) between A and B."
      },
      {
        "number": "7",
        "name": "B",
        "type": "bidirectional",
        "description": "Inverting driver differential output and receiver differential input; the datasheet rates ESD protection at ±15 kV (human body model) between A and B."
      },
      {
        "number": "8",
        "name": "Vcc",
        "type": "power_in",
        "description": "Power supply, 5 V nominal; the DC characteristics specify a working voltage range of 4.5 V to 5.5 V (Vcc = 5 V ±5%)."
      }
    ],
    "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 pin 2 (RE) and pin 3 (DE) function text in the extracted datasheet is garbled. Descriptions were; The pin 1 (RO) and pin 6/7 (A/B) text is partly garbled, and the ESD figure appears as '±8 ±15 kV' i; Only the SOP-8 package is given for HX485-S, and the pinout is taken from the SOP-8 pin table on pag"
        ],
        "pages_sent": 4,
        "cost_usd": 0.0331,
        "at": "2026-10-18T16:22:37"
      },
      "datasheet": {
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        "pages": 4,
        "sha256": "46fb57171727991f",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "hx485-s-etched.step",
        "role": "eda",
        "up": "Z",
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        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "7134ebc30409db0f0b5b6430b77d14ccec3abd1dd6cff35300649da3136d9db0",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
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  }
}