CD74HC373M

{
  "slug": "cd74hc373m",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Latches, SOIC-20-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic",
    "cd74hc373m",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "cd74hc373m.kicad_sym",
    "cd74hc373m.kicad_mod",
    "cd74hc373m.glb",
    "cd74hc373m.step",
    "cd74hc373m.lbr",
    "docs/hero.png",
    "docs/cd74hc373m-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "cd74hc373m-hero.glb",
    "cd74hc373m-hero.overlay.json",
    "cd74hc373m-etched.glb"
  ],
  "component": {
    "mpn": "CD74HC373M",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-20-300mil",
    "pin_count": 20,
    "category": "Logic",
    "subcategory": "Latches",
    "datasheet": "https://www.ti.com/lit/ds/symlink/cd74hc373.pdf",
    "parts": {
      "symbol": "cd74hc373m.kicad_sym",
      "footprint": "cd74hc373m.kicad_mod",
      "model_3d": "cd74hc373m-hero.glb",
      "model_3d_plain": "cd74hc373m-etched.glb",
      "model_3d_step": "cd74hc373m-etched.step",
      "model_3d_step_plain": "cd74hc373m.step",
      "lbr": "cd74hc373m.lbr"
    },
    "distributor_links": {
      "lcsc": "C1523293",
      "digikey": "2156-CD74HC373M-HC-ND",
      "mouser": "595-CD74HC373M"
    },
    "distributor_check": {
      "checked_at": "2026-11-05T22:02:36Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "2156-CD74HC373M-HC-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-CD74HC373M",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "OE",
        "type": "input",
        "description": "Buffered output-enable; when OE is high the eight Q outputs go to the high-impedance state without affecting the latches."
      },
      {
        "number": "2",
        "name": "1Q",
        "type": "tri_state",
        "description": "Output of latch 1, which follows 1D while LE is high and is high-impedance while OE is high."
      },
      {
        "number": "3",
        "name": "1D",
        "type": "input",
        "description": "Data input of latch 1, latched when LE goes low."
      },
      {
        "number": "4",
        "name": "2D",
        "type": "input",
        "description": "Data input of latch 2, latched when LE goes low."
      },
      {
        "number": "5",
        "name": "2Q",
        "type": "tri_state",
        "description": "Output of latch 2, which follows 2D while LE is high and is high-impedance while OE is high."
      },
      {
        "number": "6",
        "name": "3Q",
        "type": "tri_state",
        "description": "Output of latch 3, which follows 3D while LE is high and is high-impedance while OE is high."
      },
      {
        "number": "7",
        "name": "3D",
        "type": "input",
        "description": "Data input of latch 3, latched when LE goes low."
      },
      {
        "number": "8",
        "name": "4D",
        "type": "input",
        "description": "Data input of latch 4, latched when LE goes low."
      },
      {
        "number": "9",
        "name": "4Q",
        "type": "tri_state",
        "description": "Output of latch 4, which follows 4D while LE is high and is high-impedance while OE is high."
      },
      {
        "number": "10",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device."
      },
      {
        "number": "11",
        "name": "LE",
        "type": "input",
        "description": "Latch enable; when high the Q outputs follow the D inputs and when low they hold the latched data."
      },
      {
        "number": "12",
        "name": "5Q",
        "type": "tri_state",
        "description": "Output of latch 5, which follows 5D while LE is high and is high-impedance while OE is high."
      },
      {
        "number": "13",
        "name": "5D",
        "type": "input",
        "description": "Data input of latch 5, latched when LE goes low."
      },
      {
        "number": "14",
        "name": "6D",
        "type": "input",
        "description": "Data input of latch 6, latched when LE goes low."
      },
      {
        "number": "15",
        "name": "6Q",
        "type": "tri_state",
        "description": "Output of latch 6, which follows 6D while LE is high and is high-impedance while OE is high."
      },
      {
        "number": "16",
        "name": "7Q",
        "type": "tri_state",
        "description": "Output of latch 7, which follows 7D while LE is high and is high-impedance while OE is high."
      },
      {
        "number": "17",
        "name": "7D",
        "type": "input",
        "description": "Data input of latch 7, latched when LE goes low."
      },
      {
        "number": "18",
        "name": "8D",
        "type": "input",
        "description": "Data input of latch 8, latched when LE goes low."
      },
      {
        "number": "19",
        "name": "8Q",
        "type": "tri_state",
        "description": "Output of latch 8, which follows 8D while LE is high and is high-impedance while OE is high."
      },
      {
        "number": "20",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage, 2 V to 6 V VCC operation per the recommended operating conditions."
      }
    ],
    "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: Pin numbering was reconstructed from the scrambled pin-configuration text on page 3 (DW package, top"
        ],
        "pages_sent": 21,
        "cost_usd": 0.0249,
        "at": "2026-11-05T22:02:24"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/cd74hc373.pdf",
        "pages": 21,
        "sha256": "c1a1a69ac5b95454",
        "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": "cd74hc373m.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": "2026-11-05",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cd74hc373m-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": "d5575a2bca695a4a927be129138012868d4a03743adedf21cf6edc0135d1a8a2",
        "checked": "2026-11-05",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}