74AHCT541ABQX

{
  "slug": "74ahct541abqx",
  "version": "0.1.0",
  "type": "component",
  "description": "Nexperia Buffers, Drivers, Receivers, Transceivers, DHVQFN-20-EP(2.5x4.5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic",
    "74ahct541abqx",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "74ahct541abqx.kicad_sym",
    "74ahct541abqx.kicad_mod",
    "74ahct541abqx.glb",
    "74ahct541abqx.step",
    "74ahct541abqx.lbr",
    "docs/hero.png",
    "docs/74ahct541abqx-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "74ahct541abqx-hero.glb",
    "74ahct541abqx-hero.overlay.json",
    "74ahct541abqx-etched.glb"
  ],
  "component": {
    "mpn": "74AHCT541ABQX",
    "manufacturer": "Nexperia",
    "package": "DHVQFN-20-EP(2.5x4.5)",
    "pin_count": 21,
    "category": "Logic",
    "subcategory": "Buffers, Drivers, Receivers, Transceivers",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588914456483278848",
    "parts": {
      "symbol": "74ahct541abqx.kicad_sym",
      "footprint": "74ahct541abqx.kicad_mod",
      "model_3d": "74ahct541abqx-hero.glb",
      "model_3d_plain": "74ahct541abqx-etched.glb",
      "model_3d_step": "74ahct541abqx-etched.step",
      "model_3d_step_plain": "74ahct541abqx.step",
      "lbr": "74ahct541abqx.lbr"
    },
    "distributor_links": {
      "lcsc": "C554673",
      "digikey": "1727-7427-2-ND",
      "mouser": "771-74AHCT541ABQX"
    },
    "distributor_check": {
      "checked_at": "2026-10-21T02:06:17Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "1727-7427-2-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "771-74AHCT541ABQX",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "OE1",
        "type": "input",
        "description": "Output enable input, active LOW; a HIGH on OE1 places outputs Y0 to Y3 in the high-impedance OFF-state."
      },
      {
        "number": "2",
        "name": "A0",
        "type": "input",
        "description": "Data input 0, TTL-compatible with Schmitt-trigger action and overvoltage tolerant to 5.5 V."
      },
      {
        "number": "3",
        "name": "A1",
        "type": "input",
        "description": "Data input 1, TTL-compatible with Schmitt-trigger action and overvoltage tolerant to 5.5 V."
      },
      {
        "number": "4",
        "name": "A2",
        "type": "input",
        "description": "Data input 2, TTL-compatible with Schmitt-trigger action and overvoltage tolerant to 5.5 V."
      },
      {
        "number": "5",
        "name": "A3",
        "type": "input",
        "description": "Data input 3, TTL-compatible with Schmitt-trigger action and overvoltage tolerant to 5.5 V."
      },
      {
        "number": "6",
        "name": "A4",
        "type": "input",
        "description": "Data input 4, TTL-compatible with Schmitt-trigger action and overvoltage tolerant to 5.5 V."
      },
      {
        "number": "7",
        "name": "A5",
        "type": "input",
        "description": "Data input 5, TTL-compatible with Schmitt-trigger action and overvoltage tolerant to 5.5 V."
      },
      {
        "number": "8",
        "name": "A6",
        "type": "input",
        "description": "Data input 6, TTL-compatible with Schmitt-trigger action and overvoltage tolerant to 5.5 V."
      },
      {
        "number": "9",
        "name": "A7",
        "type": "input",
        "description": "Data input 7, TTL-compatible with Schmitt-trigger action and overvoltage tolerant to 5.5 V."
      },
      {
        "number": "10",
        "name": "GND",
        "type": "power_in",
        "description": "Ground (0 V) reference for the device."
      },
      {
        "number": "11",
        "name": "Y7",
        "type": "tri_state",
        "description": "Data output 7, 3-state; output current limited to ±25 mA."
      },
      {
        "number": "12",
        "name": "Y6",
        "type": "tri_state",
        "description": "Data output 6, 3-state; output current limited to ±25 mA."
      },
      {
        "number": "13",
        "name": "Y5",
        "type": "tri_state",
        "description": "Data output 5, 3-state; output current limited to ±25 mA."
      },
      {
        "number": "14",
        "name": "Y4",
        "type": "tri_state",
        "description": "Data output 4, 3-state; output current limited to ±25 mA."
      },
      {
        "number": "15",
        "name": "Y3",
        "type": "tri_state",
        "description": "Data output 3, 3-state; output current limited to ±25 mA."
      },
      {
        "number": "16",
        "name": "Y2",
        "type": "tri_state",
        "description": "Data output 2, 3-state; output current limited to ±25 mA."
      },
      {
        "number": "17",
        "name": "Y1",
        "type": "tri_state",
        "description": "Data output 1, 3-state; output current limited to ±25 mA."
      },
      {
        "number": "18",
        "name": "Y0",
        "type": "tri_state",
        "description": "Data output 0, 3-state; output current limited to ±25 mA."
      },
      {
        "number": "19",
        "name": "OE2",
        "type": "input",
        "description": "Output enable input, active LOW; a HIGH on OE2 places outputs Y4 to Y7 in the high-impedance OFF-state."
      },
      {
        "number": "20",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage, 4.5 V to 5.5 V recommended operating range."
      },
      {
        "number": "21",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "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 exposed thermal pad on the DHVQFN20 package is labelled GND(1) in the pinning drawing but has no; The MPN 74AHCT541ABQX is not listed verbatim. Table 1 lists 74AHCT541ABQ as DHVQFN20 (SOT764-1), and; The BQ pin numbers were read from a text-extracted pinning drawing (page 2). They were cross-checked",
          "exposed pad 21 added from the footprint"
        ],
        "pages_sent": 12,
        "cost_usd": 0.0688,
        "at": "2026-10-21T02:01:10"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588914456483278848",
        "pages": 12,
        "sha256": "fa4b5fb8000d1d1f",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 21,
        "described": 21,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "74ahct541abqx.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.52,
          4.52,
          0.9
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "ffd96aec40b77fc9961598895d521d5566423ae1455ad4f62e5c6138a7e7ef7d",
        "checked": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "74ahct541abqx-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.52,
          4.52,
          0.9
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "b76cc076beb3c1d1510238eadf7a07698838132253423d78c90cefddfcc6e96c",
        "checked": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}