COS1042T

{
  "slug": "cos1042t",
  "version": "0.1.0",
  "type": "component",
  "description": "COSINE CAN ICs, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "communication interface chip-uart-485-232",
    "cos1042t",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "cos1042t.kicad_sym",
    "cos1042t.kicad_mod",
    "cos1042t.glb",
    "cos1042t.step",
    "cos1042t.lbr",
    "docs/hero.png",
    "docs/cos1042t-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "cos1042t-hero.glb",
    "cos1042t-hero.overlay.json",
    "cos1042t-etched.glb"
  ],
  "component": {
    "mpn": "COS1042T",
    "manufacturer": "COSINE",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Communication Interface Chip/UART/485/232",
    "subcategory": "CAN ICs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/9ee4af6874d4d7fe2f03b771f1516d48.pdf",
    "parts": {
      "symbol": "cos1042t.kicad_sym",
      "footprint": "cos1042t.kicad_mod",
      "model_3d": "cos1042t-hero.glb",
      "model_3d_plain": "cos1042t-etched.glb",
      "model_3d_step": "cos1042t-etched.step",
      "model_3d_step_plain": "cos1042t.step",
      "lbr": "cos1042t.lbr"
    },
    "distributor_links": {
      "lcsc": "C5334502"
    },
    "distributor_check": {
      "checked_at": "2026-11-05T00:51:46Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "TXD",
        "type": "input",
        "description": "Transmit digital data input: LOW selects the dominant bus state and HIGH the recessive state, and TXD has an internal pull-up to VIO that forces a recessive input if it floats."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the transceiver."
      },
      {
        "number": "3",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage for the transceiver, with a recommended operating range of 4.5 V to 5.5 V (5.0 V typical)."
      },
      {
        "number": "4",
        "name": "RXD",
        "type": "output",
        "description": "Receive digital data output that reads the bus state, driving LOW for dominant and HIGH for recessive, with output current limited to -8 mA to +8 mA."
      },
      {
        "number": "5",
        "name": "SPLIT",
        "type": "output",
        "description": "Common-mode stabilization output on the COS1042T that delivers 0.5VCC in Normal mode for a split termination, and is floating in Standby mode or when VCC is off; leave open if unused."
      },
      {
        "number": "6",
        "name": "CANL",
        "type": "bidirectional",
        "description": "LOW-level CAN bus I/O line, rated for -44 V to +44 V on the bus lines."
      },
      {
        "number": "7",
        "name": "CANH",
        "type": "bidirectional",
        "description": "HIGH-level CAN bus I/O line, rated for -44 V to +44 V on the bus lines."
      },
      {
        "number": "8",
        "name": "STB",
        "type": "input",
        "description": "Standby mode control input: HIGH selects low-power Standby mode and LOW selects Normal mode, with an internal pull-up to VIO that forces Standby if the pin floats."
      }
    ],
    "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 table lists pin 5 twice, as SPLIT (COS1042T) and as VIO (COS1042T/3). The ordering note stat; The pin diagram (Figure 1) is an image and is not in the extracted text, so the pin 1 position and p"
        ],
        "pages_sent": 14,
        "cost_usd": 0.0425,
        "at": "2026-11-05T00:51:33"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/9ee4af6874d4d7fe2f03b771f1516d48.pdf",
        "pages": 14,
        "sha256": "fb5e105a075ed27b",
        "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": "cos1042t.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": "2026-11-05",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cos1042t-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": "3cd58c452139b10f1f7c64a8a964d550b9b401456b8afd3e9a05c7086fec0d3a",
        "checked": "2026-11-05",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}