CBM485AS8

{
  "slug": "cbm485as8",
  "version": "0.1.0",
  "type": "component",
  "description": "Corebai Microelectronics RS-485 / RS-422 ICs, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "interface",
    "cbm485as8",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
    "cbm485as8.kicad_sym",
    "cbm485as8.kicad_mod",
    "cbm485as8.glb",
    "cbm485as8.step",
    "cbm485as8.lbr",
    "docs/hero.png",
    "docs/cbm485as8-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "cbm485as8-hero.glb",
    "cbm485as8-hero.overlay.json",
    "cbm485as8-etched.glb"
  ],
  "component": {
    "mpn": "CBM485AS8",
    "manufacturer": "Corebai Microelectronics",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Interface",
    "subcategory": "RS-485 / RS-422 ICs",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588884873738399744",
    "parts": {
      "symbol": "cbm485as8.kicad_sym",
      "footprint": "cbm485as8.kicad_mod",
      "model_3d": "cbm485as8-hero.glb",
      "model_3d_plain": "cbm485as8-etched.glb",
      "model_3d_step": "cbm485as8-etched.step",
      "model_3d_step_plain": "cbm485as8.step",
      "lbr": "cbm485as8.lbr"
    },
    "distributor_links": {
      "lcsc": "C476464"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T07:06:32Z",
      "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, three-state, driven high when A-B is above the threshold or the inputs are open, with VOH of at least 3.5V at IO = -4mA and VOL of at most 0.4V at IO = 4mA."
      },
      {
        "number": "2",
        "name": "RE",
        "type": "input",
        "description": "Receiver output enable, active low (RO is enabled when RE = 0 and high-impedance when RE = 1), with input high threshold of at least 2.0V and input low threshold of at most 0.8V."
      },
      {
        "number": "3",
        "name": "DE",
        "type": "input",
        "description": "Driver output enable, active high (driver outputs are enabled when DE = 1 and high-impedance when DE = 0), with input high threshold of at least 2.0V and input low threshold of at most 0.8V."
      },
      {
        "number": "4",
        "name": "DI",
        "type": "input",
        "description": "Driver input, where a low on DI with DE high drives the non-inverting output low and the inverting output high, with input voltage limited to -0.5V to VCC+0.5V."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Ground, the reference for all device voltages."
      },
      {
        "number": "6",
        "name": "A",
        "type": "bidirectional",
        "description": "Non-inverting RS-485 receiver input and driver output, rated -8V to +12.5V with common-mode range -7V to +12V."
      },
      {
        "number": "7",
        "name": "B",
        "type": "bidirectional",
        "description": "Inverting RS-485 receiver input and driver output, rated -8V to +12.5V with common-mode range -7V to +12V."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply, operating from a single 5V ±5% supply with an absolute maximum of 12V."
      }
    ],
    "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 pin diagram labels the package 'DIP/SO' and gives no text pin table, so the pin descri",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 11,
        "cost_usd": 0.2209,
        "at": "2026-10-18T07:05:21"
      },
      "datasheet": {
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        "pages": 11,
        "sha256": "87251a449412e9b0",
        "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"
    },
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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)"
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        "file": "cbm485as8-etched.step",
        "role": "eda",
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        "origin": "footprint origin = pad-pattern centre",
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        "sha256": "cd25ba8652b049d1a627d4493f7cd0a8e724d2821ef99842045be17c792e8c3f",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  }
}