main
Ray Set visibility: public b44e537 14d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "74hc541d",
  "title": "74HC541D",
  "brief": "Nexperia Buffers, Drivers, Receivers, Transceivers, SOIC-20-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "logic",
    "74hc541d",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "74HC541D",
    "manufacturer": "Nexperia",
    "package": "SOIC-20-300mil",
    "pin_count": 20,
    "category": "Logic",
    "subcategory": "Buffers, Drivers, Receivers, Transceivers",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588884619026976768",
    "parts": {
      "symbol": "74hc541d.kicad_sym",
      "footprint": "74hc541d.kicad_mod",
      "model_3d": "74hc541d-hero.glb",
      "model_3d_plain": "74hc541d.glb",
      "model_3d_step": "74hc541d-etched.step",
      "model_3d_step_plain": "74hc541d.step",
      "lbr": "74hc541d.lbr"
    },
    "distributor_links": {
      "lcsc": "C126008",
      "mouser": "757-74HC541D"
    },
    "distributor_check": {
      "checked_at": "2026-10-09T09:02:10Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": "757-74HC541D",
        "status": "found",
        "lifecycle": "End of Life"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "OE1",
        "type": "input",
        "description": "Active-LOW output enable input; a HIGH on OE1 forces outputs Y0 to Y7 to the high-impedance OFF-state when OE2 is also not LOW (Table 3)."
      },
      {
        "number": "2",
        "name": "A0",
        "type": "input",
        "description": "Data input to buffer channel 0; inputs have clamp diodes allowing current-limiting resistors for interfacing to voltages above VCC, with input voltage specified from 0 V to VCC."
      },
      {
        "number": "3",
        "name": "A1",
        "type": "input",
        "description": "Data input to buffer channel 1; inputs have clamp diodes allowing current-limiting resistors for interfacing to voltages above VCC, with input voltage specified from 0 V to VCC."
      },
      {
        "number": "4",
        "name": "A2",
        "type": "input",
        "description": "Data input to buffer channel 2; inputs have clamp diodes allowing current-limiting resistors for interfacing to voltages above VCC, with input voltage specified from 0 V to VCC."
      },
      {
        "number": "5",
        "name": "A3",
        "type": "input",
        "description": "Data input to buffer channel 3; inputs have clamp diodes allowing current-limiting resistors for interfacing to voltages above VCC, with input voltage specified from 0 V to VCC."
      },
      {
        "number": "6",
        "name": "A4",
        "type": "input",
        "description": "Data input to buffer channel 4; inputs have clamp diodes allowing current-limiting resistors for interfacing to voltages above VCC, with input voltage specified from 0 V to VCC."
      },
      {
        "number": "7",
        "name": "A5",
        "type": "input",
        "description": "Data input to buffer channel 5; inputs have clamp diodes allowing current-limiting resistors for interfacing to voltages above VCC, with input voltage specified from 0 V to VCC."
      },
      {
        "number": "8",
        "name": "A6",
        "type": "input",
        "description": "Data input to buffer channel 6; inputs have clamp diodes allowing current-limiting resistors for interfacing to voltages above VCC, with input voltage specified from 0 V to VCC."
      },
      {
        "number": "9",
        "name": "A7",
        "type": "input",
        "description": "Data input to buffer channel 7; inputs have clamp diodes allowing current-limiting resistors for interfacing to voltages above VCC, with input voltage specified from 0 V to VCC."
      },
      {
        "number": "10",
        "name": "GND",
        "type": "power_in",
        "description": "Ground (0 V) reference for all voltages on the device."
      },
      {
        "number": "11",
        "name": "Y7",
        "type": "tri_state",
        "description": "Non-inverting 3-state data output of channel 7; enters high-impedance OFF-state when OE1 is HIGH or OE2 is LOW-disabled per the functional table, and output current is limited to ±35 mA."
      },
      {
        "number": "12",
        "name": "Y6",
        "type": "tri_state",
        "description": "Non-inverting 3-state data output of channel 6; enters high-impedance OFF-state when disabled by OE1/OE2, with output current limited to ±35 mA."
      },
      {
        "number": "13",
        "name": "Y5",
        "type": "tri_state",
        "description": "Non-inverting 3-state data output of channel 5; enters high-impedance OFF-state when disabled by OE1/OE2, with output current limited to ±35 mA."
      },
      {
        "number": "14",
        "name": "Y4",
        "type": "tri_state",
        "description": "Non-inverting 3-state data output of channel 4; enters high-impedance OFF-state when disabled by OE1/OE2, with output current limited to ±35 mA."
      },
      {
        "number": "15",
        "name": "Y3",
        "type": "tri_state",
        "description": "Non-inverting 3-state data output of channel 3; enters high-impedance OFF-state when disabled by OE1/OE2, with output current limited to ±35 mA."
      },
      {
        "number": "16",
        "name": "Y2",
        "type": "tri_state",
        "description": "Non-inverting 3-state data output of channel 2; enters high-impedance OFF-state when disabled by OE1/OE2, with output current limited to ±35 mA."
      },
      {
        "number": "17",
        "name": "Y1",
        "type": "tri_state",
        "description": "Non-inverting 3-state data output of channel 1; enters high-impedance OFF-state when disabled by OE1/OE2, with output current limited to ±35 mA."
      },
      {
        "number": "18",
        "name": "Y0",
        "type": "tri_state",
        "description": "Non-inverting 3-state data output of channel 0; enters high-impedance OFF-state when disabled by OE1/OE2, with output current limited to ±35 mA."
      },
      {
        "number": "19",
        "name": "OE2",
        "type": "input",
        "description": "Active-LOW output enable input; a HIGH on OE2 forces outputs Y0 to Y7 to the high-impedance OFF-state when OE1 is also not LOW (Table 3)."
      },
      {
        "number": "20",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage; 2.0 V to 6.0 V for 74HC541 (absolute maximum 7 V, -0.5 V to +7 V)."
      }
    ],
    "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": [],
        "pages_sent": 14,
        "cost_usd": 0.0763,
        "at": "2026-10-09T09:00:21"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588884619026976768",
        "pages": 14,
        "sha256": "1365fecc10aa88a3",
        "source_tier": "lcsc"
      },
      "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": [
      {
        "file": "74hc541d.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,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "59a10b341e6972b31d81802a048060326da627d8b92dcf4263064f4f62ec808e",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "74hc541d-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          10.3,
          12.8,
          2.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "d2db077aaa85368e64d1230ff7f6d97dce52c8a5f67f65748cfd3d8d659df9ff",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Nexperia",
      "Package": "SOIC-20-300mil",
      "Category": "Logic",
      "Pins": "20"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "74hc541d"
  ],
  "discovery_pitch": "74HC541D (Nexperia) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "74hc541d.kicad_sym",
    "74hc541d.kicad_mod",
    "74hc541d.glb",
    "74hc541d.step",
    "74hc541d.lbr",
    "docs/hero.png",
    "docs/74hc541d-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "74hc541d-hero.glb",
    "74hc541d-hero.overlay.json"
  ],
  "visibility": {
    "public": true
  }
}