ISL3178EIUZ-T-TUDI

{
  "slug": "isl3178eiuz-t-tudi",
  "version": "0.1.0",
  "type": "component",
  "description": "Tudi RS-485 / RS-422 ICs, MSOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "interface",
    "isl3178eiuz-t-tudi",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "isl3178eiuz-t-tudi.kicad_sym",
    "isl3178eiuz-t-tudi.kicad_mod",
    "isl3178eiuz-t-tudi.glb",
    "isl3178eiuz-t-tudi.step",
    "isl3178eiuz-t-tudi.lbr",
    "docs/hero.png",
    "docs/isl3178eiuz-t-tudi-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "isl3178eiuz-t-tudi-hero.glb",
    "isl3178eiuz-t-tudi-hero.overlay.json",
    "isl3178eiuz-t-tudi-etched.glb"
  ],
  "component": {
    "mpn": "ISL3178EIUZ-T-TUDI",
    "manufacturer": "Tudi",
    "package": "MSOP-8",
    "pin_count": 8,
    "category": "Interface",
    "subcategory": "RS-485 / RS-422 ICs",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8604436250342539264",
    "parts": {
      "symbol": "isl3178eiuz-t-tudi.kicad_sym",
      "footprint": "isl3178eiuz-t-tudi.kicad_mod",
      "model_3d": "isl3178eiuz-t-tudi-hero.glb",
      "model_3d_plain": "isl3178eiuz-t-tudi-etched.glb",
      "model_3d_step": "isl3178eiuz-t-tudi-etched.step",
      "model_3d_step_plain": "isl3178eiuz-t-tudi.step",
      "lbr": "isl3178eiuz-t-tudi.lbr"
    },
    "distributor_links": {
      "lcsc": "C42372949"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T02:34:36Z",
      "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, driven high when A-B >= -50mV and low when A-B <= -200mV while /RE is low, and high-impedance when /RE is high."
      },
      {
        "number": "2",
        "name": "/RE",
        "type": "input",
        "description": "Receiver output enable, active low; /RE high puts RO in high-impedance, and /RE high with DE low enters low-power shutdown."
      },
      {
        "number": "3",
        "name": "DE",
        "type": "input",
        "description": "Driver output enable; high enables the driver outputs, low makes them high-impedance, and DE low with /RE high enters low-power shutdown."
      },
      {
        "number": "4",
        "name": "DI",
        "type": "input",
        "description": "Driver input; with DE high, DI low drives A low and B high, and DI high drives 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 bus-side voltage rated -7V to 13V."
      },
      {
        "number": "7",
        "name": "B",
        "type": "bidirectional",
        "description": "Inverting receiver input and inverting driver output, with bus-side voltage rated -7V to 13V."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Power supply, operating 4.75V to 5.25V with absolute maximum of +7V."
      }
    ],
    "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: Page 1 ordering table lists ISL3178EIUZ-T-TUDI as MSOP8, but the pin table and absolute maximum rati; The pin descriptions are translated from Chinese. The text says the supply tolerance is 10% in some ",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 9,
        "cost_usd": 0.1456,
        "at": "2026-10-18T02:29:56"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8604436250342539264",
        "pages": 9,
        "sha256": "ee46719ae50f0cf1",
        "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": "isl3178eiuz-t-tudi.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3.0,
          0.95
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "847c4c5023fe1603fbd36900a5dcc4bd3901ba473f71d42c9a469f0236eaadf3",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "isl3178eiuz-t-tudi-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3.0,
          0.95
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "c95ee5ce4a2a763a95dabdf7d34adc6beb42a9eb46007aa3190e06869ec84047",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}