74HCT4514PW

{
  "slug": "74hct4514pw",
  "version": "0.1.0",
  "type": "component",
  "description": "Nexperia Signal Switches, Multiplexers, Decoders, TSSOP-24. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic",
    "74hct4514pw",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "74hct4514pw.kicad_sym",
    "74hct4514pw.kicad_mod",
    "74hct4514pw.glb",
    "74hct4514pw.step",
    "74hct4514pw.lbr",
    "docs/hero.png",
    "docs/74hct4514pw-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "74hct4514pw-hero.glb",
    "74hct4514pw-hero.overlay.json",
    "74hct4514pw-etched.glb"
  ],
  "component": {
    "mpn": "74HCT4514PW",
    "manufacturer": "Nexperia",
    "package": "TSSOP-24",
    "pin_count": 24,
    "category": "Logic",
    "subcategory": "Signal Switches, Multiplexers, Decoders",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588908628002942976",
    "parts": {
      "symbol": "74hct4514pw.kicad_sym",
      "footprint": "74hct4514pw.kicad_mod",
      "model_3d": "74hct4514pw-hero.glb",
      "model_3d_plain": "74hct4514pw-etched.glb",
      "model_3d_step": "74hct4514pw-etched.step",
      "model_3d_step_plain": "74hct4514pw.step",
      "lbr": "74hct4514pw.lbr"
    },
    "distributor_links": {
      "lcsc": "C547755",
      "mouser": "771-74HCT4514PW"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T10:00:26Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": "771-74HCT4514PW",
        "status": "found",
        "lifecycle": "End of Life"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "LE",
        "type": "input",
        "description": "Latch enable input (active HIGH): when LOW, the last data on A0 to A3 is stored in the latches and the outputs remain stable."
      },
      {
        "number": "2",
        "name": "A0",
        "type": "input",
        "description": "Binary-weighted address input A0 for selecting one of the 16 outputs; it is latched when LE goes LOW."
      },
      {
        "number": "3",
        "name": "A1",
        "type": "input",
        "description": "Binary-weighted address input A1 for selecting one of the 16 outputs; it is latched when LE goes LOW."
      },
      {
        "number": "4",
        "name": "Q7",
        "type": "output",
        "description": "Multiplexer output Q7 (active HIGH); it is HIGH only when E is LOW and the latched address selects it."
      },
      {
        "number": "5",
        "name": "Q6",
        "type": "output",
        "description": "Multiplexer output Q6 (active HIGH); it is HIGH only when E is LOW and the latched address selects it."
      },
      {
        "number": "6",
        "name": "Q5",
        "type": "output",
        "description": "Multiplexer output Q5 (active HIGH); it is HIGH only when E is LOW and the latched address selects it."
      },
      {
        "number": "7",
        "name": "Q4",
        "type": "output",
        "description": "Multiplexer output Q4 (active HIGH); it is HIGH only when E is LOW and the latched address selects it."
      },
      {
        "number": "8",
        "name": "Q3",
        "type": "output",
        "description": "Multiplexer output Q3 (active HIGH); it is HIGH only when E is LOW and the latched address selects it."
      },
      {
        "number": "9",
        "name": "Q1",
        "type": "output",
        "description": "Multiplexer output Q1 (active HIGH); it is HIGH only when E is LOW and the latched address selects it."
      },
      {
        "number": "10",
        "name": "Q2",
        "type": "output",
        "description": "Multiplexer output Q2 (active HIGH); it is HIGH only when E is LOW and the latched address selects it."
      },
      {
        "number": "11",
        "name": "Q0",
        "type": "output",
        "description": "Multiplexer output Q0 (active HIGH); it is HIGH only when E is LOW and the latched address selects it."
      },
      {
        "number": "12",
        "name": "GND",
        "type": "power_in",
        "description": "Ground (0 V) reference for all voltages."
      },
      {
        "number": "13",
        "name": "Q13",
        "type": "output",
        "description": "Multiplexer output Q13 (active HIGH); it is HIGH only when E is LOW and the latched address selects it."
      },
      {
        "number": "14",
        "name": "Q12",
        "type": "output",
        "description": "Multiplexer output Q12 (active HIGH); it is HIGH only when E is LOW and the latched address selects it."
      },
      {
        "number": "15",
        "name": "Q15",
        "type": "output",
        "description": "Multiplexer output Q15 (active HIGH); it is HIGH only when E is LOW and the latched address selects it."
      },
      {
        "number": "16",
        "name": "Q14",
        "type": "output",
        "description": "Multiplexer output Q14 (active HIGH); it is HIGH only when E is LOW and the latched address selects it."
      },
      {
        "number": "17",
        "name": "Q9",
        "type": "output",
        "description": "Multiplexer output Q9 (active HIGH); it is HIGH only when E is LOW and the latched address selects it."
      },
      {
        "number": "18",
        "name": "Q8",
        "type": "output",
        "description": "Multiplexer output Q8 (active HIGH); it is HIGH only when E is LOW and the latched address selects it."
      },
      {
        "number": "19",
        "name": "Q11",
        "type": "output",
        "description": "Multiplexer output Q11 (active HIGH); it is HIGH only when E is LOW and the latched address selects it."
      },
      {
        "number": "20",
        "name": "Q10",
        "type": "output",
        "description": "Multiplexer output Q10 (active HIGH); it is HIGH only when E is LOW and the latched address selects it."
      },
      {
        "number": "21",
        "name": "A2",
        "type": "input",
        "description": "Binary-weighted address input A2 for selecting one of the 16 outputs; it is latched when LE goes LOW."
      },
      {
        "number": "22",
        "name": "A3",
        "type": "input",
        "description": "Binary-weighted address input A3 for selecting one of the 16 outputs; it is latched when LE goes LOW."
      },
      {
        "number": "23",
        "name": "E",
        "type": "input",
        "description": "Enable input (active LOW): when LOW the latched output selected by the address is HIGH, and when HIGH all outputs are LOW without affecting the latch."
      },
      {
        "number": "24",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage: recommended 2.0 V to 6.0 V for 74HC4514 and 4.5 V to 5.5 V for 74HCT4514, with an absolute maximum of 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": [
          "extractor flagged: The pinning diagram text extraction does not pair each pin number with its name cleanly, so the pin-"
        ],
        "pages_sent": 16,
        "cost_usd": 0.0823,
        "at": "2026-10-19T10:00:09"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588908628002942976",
        "pages": 16,
        "sha256": "fbe3c25cee37fe68",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 24,
        "described": 24,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
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        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "706322f42d9793ebf28d5b80100a68bfa8769998a00b78acadf7af937fc1454f",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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      {
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        "sha256": "b28df493d831601e4971bd856f35d639c18ca979ba9d00855587484a55bb4b1b",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
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  }
}