74HCT373D

{
  "slug": "74hct373d",
  "version": "0.1.0",
  "type": "component",
  "description": "Nexperia Latches, SOIC-20-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic ics",
    "74hct373d",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "74hct373d.kicad_sym",
    "74hct373d.kicad_mod",
    "74hct373d.glb",
    "74hct373d.step",
    "74hct373d.lbr",
    "docs/hero.png",
    "docs/74hct373d-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "74hct373d-hero.glb",
    "74hct373d-hero.overlay.json",
    "74hct373d-etched.glb"
  ],
  "component": {
    "mpn": "74HCT373D",
    "manufacturer": "Nexperia",
    "package": "SOIC-20-300mil",
    "pin_count": 20,
    "category": "Logic ICs",
    "subcategory": "Latches",
    "datasheet": "https://assets.nexperia.com/documents/data-sheet/74HCT373D.pdf",
    "parts": {
      "symbol": "74hct373d.kicad_sym",
      "footprint": "74hct373d.kicad_mod",
      "model_3d": "74hct373d-hero.glb",
      "model_3d_plain": "74hct373d-etched.glb",
      "model_3d_step": "74hct373d-etched.step",
      "model_3d_step_plain": "74hct373d.step",
      "lbr": "74hct373d.lbr"
    },
    "distributor_links": {
      "lcsc": "C5989"
    },
    "distributor_check": {
      "checked_at": "2026-10-27T01:00:11Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "OE",
        "type": "input",
        "description": "3-state output enable input (active LOW); a HIGH level puts the outputs in the high-impedance OFF-state without affecting the latches."
      },
      {
        "number": "2",
        "name": "Q0",
        "type": "tri_state",
        "description": "3-state latch output 0."
      },
      {
        "number": "3",
        "name": "D0",
        "type": "input",
        "description": "Data input 0."
      },
      {
        "number": "4",
        "name": "D1",
        "type": "input",
        "description": "Data input 1."
      },
      {
        "number": "5",
        "name": "Q1",
        "type": "tri_state",
        "description": "3-state latch output 1."
      },
      {
        "number": "6",
        "name": "Q2",
        "type": "tri_state",
        "description": "3-state latch output 2."
      },
      {
        "number": "7",
        "name": "D2",
        "type": "input",
        "description": "Data input 2."
      },
      {
        "number": "8",
        "name": "D3",
        "type": "input",
        "description": "Data input 3."
      },
      {
        "number": "9",
        "name": "Q3",
        "type": "tri_state",
        "description": "3-state latch output 3."
      },
      {
        "number": "10",
        "name": "GND",
        "type": "power_in",
        "description": "Ground (0 V)."
      },
      {
        "number": "11",
        "name": "LE",
        "type": "input",
        "description": "Latch enable input (active HIGH); latches are transparent when HIGH and store data when LOW."
      },
      {
        "number": "12",
        "name": "Q4",
        "type": "tri_state",
        "description": "3-state latch output 4."
      },
      {
        "number": "13",
        "name": "D4",
        "type": "input",
        "description": "Data input 4."
      },
      {
        "number": "14",
        "name": "D5",
        "type": "input",
        "description": "Data input 5."
      },
      {
        "number": "15",
        "name": "Q5",
        "type": "tri_state",
        "description": "3-state latch output 5."
      },
      {
        "number": "16",
        "name": "Q6",
        "type": "tri_state",
        "description": "3-state latch output 6."
      },
      {
        "number": "17",
        "name": "D6",
        "type": "input",
        "description": "Data input 6."
      },
      {
        "number": "18",
        "name": "D7",
        "type": "input",
        "description": "Data input 7."
      },
      {
        "number": "19",
        "name": "Q7",
        "type": "tri_state",
        "description": "3-state latch output 7."
      },
      {
        "number": "20",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage; 4.5 V to 5.5 V recommended for 74HCT373."
      }
    ],
    "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: Datasheet names the package SO20 (SOT163-1) with 7.5 mm body width; it does not state '300 mil', so "
        ],
        "pages_sent": 16,
        "cost_usd": 0.1484,
        "at": "2026-10-27T00:59:39"
      },
      "datasheet": {
        "url": "https://assets.nexperia.com/documents/data-sheet/74HCT373D.pdf",
        "pages": 16,
        "sha256": "694e57b88d55eac3",
        "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": [
      {
        "file": "74hct373d.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": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "74hct373d-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": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "87ede6d1d872c5223025a3c0a66313bc8804cff5319fdfc0f75828f6c1fe4539",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}