COS485RS

{
  "slug": "cos485rs",
  "version": "0.1.0",
  "type": "component",
  "description": "COSINE 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-uart-485-232",
    "cos485rs",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "cos485rs.kicad_sym",
    "cos485rs.kicad_mod",
    "cos485rs.glb",
    "cos485rs.step",
    "cos485rs.lbr",
    "docs/hero.png",
    "docs/cos485rs-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "cos485rs-hero.glb",
    "cos485rs-hero.overlay.json",
    "cos485rs-etched.glb"
  ],
  "component": {
    "mpn": "COS485RS",
    "manufacturer": "COSINE",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Communication Interface Chip/UART/485/232",
    "subcategory": "RS-485/RS-422 ICs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/c3b52c7305b0ecee3a5907d4f04175db.pdf",
    "parts": {
      "symbol": "cos485rs.kicad_sym",
      "footprint": "cos485rs.kicad_mod",
      "model_3d": "cos485rs-hero.glb",
      "model_3d_plain": "cos485rs-etched.glb",
      "model_3d_step": "cos485rs-etched.step",
      "model_3d_step_plain": "cos485rs.step",
      "lbr": "cos485rs.lbr"
    },
    "distributor_links": {
      "lcsc": "C5334495"
    },
    "distributor_check": {
      "checked_at": "2026-10-23T03:18:41Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "RO",
        "type": "output",
        "description": "Receiver output: when RE is low, RO is high if A > B by 200mV and low if A < B by 200mV; high impedance when RE is high."
      },
      {
        "number": "2",
        "name": "RE",
        "type": "input",
        "description": "Receiver output enable: a low enables the receiver output RO, a high forces RO into a high impedance state."
      },
      {
        "number": "3",
        "name": "DE",
        "type": "input",
        "description": "Driver output enable: a high enables driver outputs A and B (line driver), a low forces them high impedance (line receiver)."
      },
      {
        "number": "4",
        "name": "DI",
        "type": "input",
        "description": "Driver input: with DE high, a low on DI forces A low and B high, and a high on DI forces A high and B low."
      },
      {
        "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, with -7V to 12V common mode range and ±8 kV IEC-ESD contact protection."
      },
      {
        "number": "7",
        "name": "B",
        "type": "bidirectional",
        "description": "Inverting receiver input and inverting driver output, with -7V to 12V common mode range and ±8 kV IEC-ESD contact protection."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Power supply, 3.0V to 5.5V recommended operating range (7V absolute maximum)."
      }
    ],
    "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",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [],
        "pages_sent": 12,
        "cost_usd": 0.0565,
        "at": "2026-10-23T03:18:25"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/c3b52c7305b0ecee3a5907d4f04175db.pdf",
        "pages": 12,
        "sha256": "ec80090158e6c3aa",
        "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": "cos485rs.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": "cos485rs-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": "0c64d5805a293d8dfde0593cdc27524cce5e2cca99faf3076ad6359ca022a205",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}