SN74F373N

{
  "slug": "sn74f373n",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Latches, PDIP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic ics",
    "sn74f373n",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sn74f373n.kicad_sym",
    "sn74f373n.kicad_mod",
    "sn74f373n.glb",
    "sn74f373n.step",
    "sn74f373n.lbr",
    "docs/hero.png",
    "docs/sn74f373n-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sn74f373n-hero.glb",
    "sn74f373n-hero.overlay.json",
    "sn74f373n-etched.glb"
  ],
  "component": {
    "mpn": "SN74F373N",
    "manufacturer": "Texas Instruments",
    "package": "PDIP-20",
    "pin_count": 20,
    "category": "Logic ICs",
    "subcategory": "Latches",
    "datasheet": "https://www.ti.com/lit/ds/symlink/sn74f373n.pdf",
    "parts": {
      "symbol": "sn74f373n.kicad_sym",
      "footprint": "sn74f373n.kicad_mod",
      "model_3d": "sn74f373n-hero.glb",
      "model_3d_plain": "sn74f373n-etched.glb",
      "model_3d_step": "sn74f373n-etched.step",
      "model_3d_step_plain": "sn74f373n.step",
      "lbr": "sn74f373n.lbr"
    },
    "distributor_links": {
      "lcsc": "C1547798",
      "digikey": "2156-SN74F373N-ND",
      "mouser": "595-SN74F373N"
    },
    "distributor_check": {
      "checked_at": "2026-10-26T19:08:19Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "2156-SN74F373N-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-SN74F373N",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "OE",
        "type": "input",
        "description": "Output enable, active low: low enables the eight 3-state outputs, high places them in the high-impedance state without affecting the latches."
      },
      {
        "number": "2",
        "name": "1Q",
        "type": "tri_state",
        "description": "3-state latch output 1, rated for IOL 24 mA and IOH -3 mA on the SN74F373."
      },
      {
        "number": "3",
        "name": "1D",
        "type": "input",
        "description": "Data input for latch 1, which is transparent while LE is high and latched when LE goes low."
      },
      {
        "number": "4",
        "name": "2D",
        "type": "input",
        "description": "Data input for latch 2, which is transparent while LE is high and latched when LE goes low."
      },
      {
        "number": "5",
        "name": "2Q",
        "type": "tri_state",
        "description": "3-state latch output 2, rated for IOL 24 mA and IOH -3 mA on the SN74F373."
      },
      {
        "number": "6",
        "name": "3Q",
        "type": "tri_state",
        "description": "3-state latch output 3, rated for IOL 24 mA and IOH -3 mA on the SN74F373."
      },
      {
        "number": "7",
        "name": "3D",
        "type": "input",
        "description": "Data input for latch 3, which is transparent while LE is high and latched when LE goes low."
      },
      {
        "number": "8",
        "name": "4D",
        "type": "input",
        "description": "Data input for latch 4, which is transparent while LE is high and latched when LE goes low."
      },
      {
        "number": "9",
        "name": "4Q",
        "type": "tri_state",
        "description": "3-state latch output 4, rated for IOL 24 mA and IOH -3 mA on the SN74F373."
      },
      {
        "number": "10",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin."
      },
      {
        "number": "11",
        "name": "LE",
        "type": "input",
        "description": "Latch enable: outputs follow the D inputs while high, and the data is latched when LE is taken low."
      },
      {
        "number": "12",
        "name": "5Q",
        "type": "tri_state",
        "description": "3-state latch output 5, rated for IOL 24 mA and IOH -3 mA on the SN74F373."
      },
      {
        "number": "13",
        "name": "5D",
        "type": "input",
        "description": "Data input for latch 5, which is transparent while LE is high and latched when LE goes low."
      },
      {
        "number": "14",
        "name": "6D",
        "type": "input",
        "description": "Data input for latch 6, which is transparent while LE is high and latched when LE goes low."
      },
      {
        "number": "15",
        "name": "6Q",
        "type": "tri_state",
        "description": "3-state latch output 6, rated for IOL 24 mA and IOH -3 mA on the SN74F373."
      },
      {
        "number": "16",
        "name": "7Q",
        "type": "tri_state",
        "description": "3-state latch output 7, rated for IOL 24 mA and IOH -3 mA on the SN74F373."
      },
      {
        "number": "17",
        "name": "7D",
        "type": "input",
        "description": "Data input for latch 7, which is transparent while LE is high and latched when LE goes low."
      },
      {
        "number": "18",
        "name": "8D",
        "type": "input",
        "description": "Data input for latch 8, which is transparent while LE is high and latched when LE goes low."
      },
      {
        "number": "19",
        "name": "8Q",
        "type": "tri_state",
        "description": "3-state latch output 8, rated for IOL 24 mA and IOH -3 mA on the SN74F373."
      },
      {
        "number": "20",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage, recommended 4.5 V to 5.5 V (absolute maximum -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-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [],
        "pages_sent": 20,
        "cost_usd": 0.1275,
        "at": "2026-10-26T19:08:01"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/sn74f373n.pdf",
        "pages": 20,
        "sha256": "9596fa601f1ac510",
        "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": "sn74f373n.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          7.874,
          26.162,
          6.98
        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "ca359c9b9e0ce94efcb6c96866513f659eef6517d629ace3c4a0a779f6fd57bb",
        "checked": "2026-10-26",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sn74f373n-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          7.874,
          26.162,
          6.98
        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "5697142e748eeb3a10493c0471b06caeef8dec54fd217b7e7c5f4018c2a0a6e1",
        "checked": "2026-10-26",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}