MC74LCX541DWR2G

{
  "slug": "mc74lcx541dwr2g",
  "version": "0.1.0",
  "type": "component",
  "description": "onsemi Buffers / Drivers, SOIC-20-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic ics",
    "mc74lcx541dwr2g",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "mc74lcx541dwr2g.kicad_sym",
    "mc74lcx541dwr2g.kicad_mod",
    "mc74lcx541dwr2g.glb",
    "mc74lcx541dwr2g.step",
    "mc74lcx541dwr2g.lbr",
    "docs/hero.png",
    "docs/mc74lcx541dwr2g-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "mc74lcx541dwr2g-hero.glb",
    "mc74lcx541dwr2g-hero.overlay.json",
    "mc74lcx541dwr2g-etched.glb"
  ],
  "component": {
    "mpn": "MC74LCX541DWR2G",
    "manufacturer": "onsemi",
    "package": "SOIC-20-300mil",
    "pin_count": 20,
    "category": "Logic ICs",
    "subcategory": "Buffers / Drivers",
    "datasheet": "https://www.onsemi.com/pdf/datasheet/mc74lcx541dwr2-d.pdf",
    "parts": {
      "symbol": "mc74lcx541dwr2g.kicad_sym",
      "footprint": "mc74lcx541dwr2g.kicad_mod",
      "model_3d": "mc74lcx541dwr2g-hero.glb",
      "model_3d_plain": "mc74lcx541dwr2g-etched.glb",
      "model_3d_step": "mc74lcx541dwr2g-etched.step",
      "model_3d_step_plain": "mc74lcx541dwr2g.step",
      "lbr": "mc74lcx541dwr2g.lbr"
    },
    "distributor_links": {
      "lcsc": "C233632",
      "digikey": "MC74LCX541DWR2GOSTR-ND",
      "mouser": "863-MC74LCX541DWR2G"
    },
    "distributor_check": {
      "checked_at": "2026-10-26T18:54:52Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "MC74LCX541DWR2GOSTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "863-MC74LCX541DWR2G",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "OE1",
        "type": "input",
        "description": "Output Enable input 1; when HIGH, places the outputs in the high-impedance state (5.5 V tolerant input)."
      },
      {
        "number": "2",
        "name": "D0",
        "type": "input",
        "description": "Data input 0, 5 V tolerant (VI up to 5.5 V); drives output O0."
      },
      {
        "number": "3",
        "name": "D1",
        "type": "input",
        "description": "Data input 1, 5 V tolerant (VI up to 5.5 V); drives output O1."
      },
      {
        "number": "4",
        "name": "D2",
        "type": "input",
        "description": "Data input 2, 5 V tolerant (VI up to 5.5 V); drives output O2."
      },
      {
        "number": "5",
        "name": "D3",
        "type": "input",
        "description": "Data input 3, 5 V tolerant (VI up to 5.5 V); drives output O3."
      },
      {
        "number": "6",
        "name": "D4",
        "type": "input",
        "description": "Data input 4, 5 V tolerant (VI up to 5.5 V); drives output O4."
      },
      {
        "number": "7",
        "name": "D5",
        "type": "input",
        "description": "Data input 5, 5 V tolerant (VI up to 5.5 V); drives output O5."
      },
      {
        "number": "8",
        "name": "D6",
        "type": "input",
        "description": "Data input 6, 5 V tolerant (VI up to 5.5 V); drives output O6."
      },
      {
        "number": "9",
        "name": "D7",
        "type": "input",
        "description": "Data input 7, 5 V tolerant (VI up to 5.5 V); drives output O7."
      },
      {
        "number": "10",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin; maximum DC ground current per ground pin is ±100 mA."
      },
      {
        "number": "11",
        "name": "O7",
        "type": "tri_state",
        "description": "3-state non-inverting output 7 with 24 mA drive capability; follows D7 when enabled."
      },
      {
        "number": "12",
        "name": "O6",
        "type": "tri_state",
        "description": "3-state non-inverting output 6 with 24 mA drive capability; follows D6 when enabled."
      },
      {
        "number": "13",
        "name": "O5",
        "type": "tri_state",
        "description": "3-state non-inverting output 5 with 24 mA drive capability; follows D5 when enabled."
      },
      {
        "number": "14",
        "name": "O4",
        "type": "tri_state",
        "description": "3-state non-inverting output 4 with 24 mA drive capability; follows D4 when enabled."
      },
      {
        "number": "15",
        "name": "O3",
        "type": "tri_state",
        "description": "3-state non-inverting output 3 with 24 mA drive capability; follows D3 when enabled."
      },
      {
        "number": "16",
        "name": "O2",
        "type": "tri_state",
        "description": "3-state non-inverting output 2 with 24 mA drive capability; follows D2 when enabled."
      },
      {
        "number": "17",
        "name": "O1",
        "type": "tri_state",
        "description": "3-state non-inverting output 1 with 24 mA drive capability; follows D1 when enabled."
      },
      {
        "number": "18",
        "name": "O0",
        "type": "tri_state",
        "description": "3-state non-inverting output 0 with 24 mA drive capability; follows D0 when enabled."
      },
      {
        "number": "19",
        "name": "OE2",
        "type": "input",
        "description": "Output Enable input 2; when HIGH, places the outputs in the high-impedance state (5.5 V tolerant input)."
      },
      {
        "number": "20",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply pin; operating range 2.0 to 3.6 V (designed for 2.3 to 3.6 V), absolute maximum -0.5 to +7.0 V."
      }
    ],
    "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": [
          "extractor flagged: Pin numbers were derived from the garbled top-view pinout text and logic diagram (page 2), which agr"
        ],
        "pages_sent": 9,
        "cost_usd": 0.1118,
        "at": "2026-10-26T18:54:36"
      },
      "datasheet": {
        "url": "https://www.onsemi.com/pdf/datasheet/mc74lcx541dwr2-d.pdf",
        "pages": 9,
        "sha256": "1e105941ba29b800",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 20,
        "described": 20,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
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        "file": "mc74lcx541dwr2g.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          10.3,
          12.8,
          2.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "59a10b341e6972b31d81802a048060326da627d8b92dcf4263064f4f62ec808e",
        "checked": "2026-10-26",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "mc74lcx541dwr2g-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          10.3,
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        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "281e1ac42c4da91a9060e92e738d8b1ab4f0a4b3512d7faa68e5e76b47ed766c",
        "checked": "2026-10-26",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}