SN74LS373DW

{
  "slug": "sn74ls373dw",
  "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 ics",
    "sn74ls373dw",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sn74ls373dw.kicad_sym",
    "sn74ls373dw.kicad_mod",
    "sn74ls373dw.glb",
    "sn74ls373dw.step",
    "sn74ls373dw.lbr",
    "docs/hero.png",
    "docs/sn74ls373dw-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sn74ls373dw-hero.glb",
    "sn74ls373dw-hero.overlay.json",
    "sn74ls373dw-etched.glb"
  ],
  "component": {
    "mpn": "SN74LS373DW",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-20-300mil",
    "pin_count": 20,
    "category": "Logic ICs",
    "subcategory": "Latches",
    "datasheet": "https://www.ti.com/lit/ds/symlink/sn74ls373dw.pdf",
    "parts": {
      "symbol": "sn74ls373dw.kicad_sym",
      "footprint": "sn74ls373dw.kicad_mod",
      "model_3d": "sn74ls373dw-hero.glb",
      "model_3d_plain": "sn74ls373dw-etched.glb",
      "model_3d_step": "sn74ls373dw-etched.step",
      "model_3d_step_plain": "sn74ls373dw.step",
      "lbr": "sn74ls373dw.lbr"
    },
    "distributor_links": {
      "lcsc": "C1523352",
      "digikey": "2156-SN74LS373DW-ND",
      "mouser": "595-SN74LS373DW"
    },
    "distributor_check": {
      "checked_at": "2026-10-23T12:30:04Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "2156-SN74LS373DW-ND",
        "status": "found",
        "lifecycle": "Obsolete"
      },
      "mouser": {
        "pn": "595-SN74LS373DW",
        "status": "found",
        "lifecycle": "End of Life"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "OC",
        "type": "input",
        "description": "Buffered output-control input that places the eight outputs in either a normal logic state or the high-impedance state without affecting internal latch operation."
      },
      {
        "number": "2",
        "name": "1Q",
        "type": "tri_state",
        "description": "Channel 1 3-state output that follows the 1D input while C is high and holds the latched level when C is low."
      },
      {
        "number": "3",
        "name": "1D",
        "type": "input",
        "description": "Channel 1 data input to the D-type latch."
      },
      {
        "number": "4",
        "name": "2D",
        "type": "input",
        "description": "Channel 2 data input to the D-type latch."
      },
      {
        "number": "5",
        "name": "2Q",
        "type": "tri_state",
        "description": "Channel 2 3-state output that follows the 2D input while C is high and holds the latched level when C is low."
      },
      {
        "number": "6",
        "name": "3Q",
        "type": "tri_state",
        "description": "Channel 3 3-state output that follows the 3D input while C is high and holds the latched level when C is low."
      },
      {
        "number": "7",
        "name": "3D",
        "type": "input",
        "description": "Channel 3 data input to the D-type latch."
      },
      {
        "number": "8",
        "name": "4D",
        "type": "input",
        "description": "Channel 4 data input to the D-type latch."
      },
      {
        "number": "9",
        "name": "4Q",
        "type": "tri_state",
        "description": "Channel 4 3-state output that follows the 4D input while C is high and holds the latched level when C is low."
      },
      {
        "number": "10",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin."
      },
      {
        "number": "11",
        "name": "C",
        "type": "input",
        "description": "Latch enable input; while high the Q outputs follow the D inputs, and when taken low the outputs latch the data that was set up."
      },
      {
        "number": "12",
        "name": "5Q",
        "type": "tri_state",
        "description": "Channel 5 3-state output that follows the 5D input while C is high and holds the latched level when C is low."
      },
      {
        "number": "13",
        "name": "5D",
        "type": "input",
        "description": "Channel 5 data input to the D-type latch."
      },
      {
        "number": "14",
        "name": "6D",
        "type": "input",
        "description": "Channel 6 data input to the D-type latch."
      },
      {
        "number": "15",
        "name": "6Q",
        "type": "tri_state",
        "description": "Channel 6 3-state output that follows the 6D input while C is high and holds the latched level when C is low."
      },
      {
        "number": "16",
        "name": "7Q",
        "type": "tri_state",
        "description": "Channel 7 3-state output that follows the 7D input while C is high and holds the latched level when C is low."
      },
      {
        "number": "17",
        "name": "7D",
        "type": "input",
        "description": "Channel 7 data input to the D-type latch."
      },
      {
        "number": "18",
        "name": "8D",
        "type": "input",
        "description": "Channel 8 data input to the D-type latch."
      },
      {
        "number": "19",
        "name": "8Q",
        "type": "tri_state",
        "description": "Channel 8 3-state output that follows the 8D input while C is high and holds the latched level when C is low."
      },
      {
        "number": "20",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply voltage pin."
      }
    ],
    "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: The DW pinout comes from a flattened text extraction of the pin diagram. Pins 1-10 and 20-11 were re"
        ],
        "pages_sent": 9,
        "cost_usd": 0.1147,
        "at": "2026-10-23T12:29:46"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/sn74ls373dw.pdf",
        "pages": 31,
        "sha256": "29beb6509e46e6e4",
        "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"
    },
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        "units": "mm",
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        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "59a10b341e6972b31d81802a048060326da627d8b92dcf4263064f4f62ec808e",
        "checked": "2026-10-23",
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      },
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        "file": "sn74ls373dw-etched.step",
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        "sha256": "1c50d22996866f15dc834541e7fa86e20fcfb08a9ca3a6eb491d9b71b9f8273f",
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  }
}