SN74LS173N

{
  "slug": "sn74ls173n",
  "version": "0.1.0",
  "type": "component",
  "description": "lingxingic Flip Flops, DIP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic",
    "sn74ls173n",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sn74ls173n.kicad_sym",
    "sn74ls173n.kicad_mod",
    "sn74ls173n.glb",
    "sn74ls173n.step",
    "sn74ls173n.lbr",
    "docs/hero.png",
    "docs/sn74ls173n-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sn74ls173n-hero.glb",
    "sn74ls173n-hero.overlay.json",
    "sn74ls173n-etched.glb"
  ],
  "component": {
    "mpn": "SN74LS173N",
    "manufacturer": "lingxingic",
    "package": "DIP-16",
    "pin_count": 16,
    "category": "Logic",
    "subcategory": "Flip Flops",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603381788576264192",
    "parts": {
      "symbol": "sn74ls173n.kicad_sym",
      "footprint": "sn74ls173n.kicad_mod",
      "model_3d": "sn74ls173n-hero.glb",
      "model_3d_plain": "sn74ls173n-etched.glb",
      "model_3d_step": "sn74ls173n-etched.step",
      "model_3d_step_plain": "sn74ls173n.step",
      "lbr": "sn74ls173n.lbr"
    },
    "distributor_links": {
      "lcsc": "C22466320"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T20:56:04Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "1OE",
        "type": "input",
        "description": "Output enable input, active LOW, controls the 3-state outputs Q0 to Q3 together with 2OE; the outputs are high-impedance when either output enable is HIGH."
      },
      {
        "number": "2",
        "name": "2OE",
        "type": "input",
        "description": "Output enable input, active LOW, controls the 3-state outputs Q0 to Q3 together with 1OE; the outputs are high-impedance when either output enable is HIGH."
      },
      {
        "number": "3",
        "name": "Q0",
        "type": "tri_state",
        "description": "3-state flip-flop output for bit 0, which goes high-impedance (Z) when disabled by 1OE or 2OE."
      },
      {
        "number": "4",
        "name": "Q1",
        "type": "tri_state",
        "description": "3-state flip-flop output for bit 1, which goes high-impedance (Z) when disabled by 1OE or 2OE."
      },
      {
        "number": "5",
        "name": "Q2",
        "type": "tri_state",
        "description": "3-state flip-flop output for bit 2, which goes high-impedance (Z) when disabled by 1OE or 2OE."
      },
      {
        "number": "6",
        "name": "Q3",
        "type": "tri_state",
        "description": "3-state flip-flop output for bit 3, which goes high-impedance (Z) when disabled by 1OE or 2OE."
      },
      {
        "number": "7",
        "name": "CP",
        "type": "input",
        "description": "Clock input, triggered on the LOW-to-HIGH transition; data is loaded and stored on this edge."
      },
      {
        "number": "8",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference, 0 V."
      },
      {
        "number": "9",
        "name": "1E",
        "type": "input",
        "description": "Data enable input, active LOW; when LOW with MR inactive, D inputs are loaded into the register on the LOW-to-HIGH CP transition, and when HIGH the register holds its state."
      },
      {
        "number": "10",
        "name": "2E",
        "type": "input",
        "description": "Data enable input, active LOW; when LOW with MR inactive, D inputs are loaded into the register on the LOW-to-HIGH CP transition, and when HIGH the register holds its state."
      },
      {
        "number": "11",
        "name": "D3",
        "type": "input",
        "description": "Data input for bit 3, sampled on the LOW-to-HIGH CP transition when the enable inputs are LOW."
      },
      {
        "number": "12",
        "name": "D2",
        "type": "input",
        "description": "Data input for bit 2, sampled on the LOW-to-HIGH CP transition when the enable inputs are LOW."
      },
      {
        "number": "13",
        "name": "D1",
        "type": "input",
        "description": "Data input for bit 1, sampled on the LOW-to-HIGH CP transition when the enable inputs are LOW."
      },
      {
        "number": "14",
        "name": "D0",
        "type": "input",
        "description": "Data input for bit 0, sampled on the LOW-to-HIGH CP transition when the enable inputs are LOW."
      },
      {
        "number": "15",
        "name": "MR",
        "type": "input",
        "description": "Asynchronous master reset, active HIGH; forces all outputs Qn LOW independently of the clock."
      },
      {
        "number": "16",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage; recommended range 2.0 V to 6.0 V (typical 5.0 V), with absolute maximum 7.0 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 pin configuration diagram (section 2.2, page 4) is an image and is not present in the extracted ; The datasheet does not label the Q0 to Q3 outputs with a KiCad class. They are 3-state outputs per t; The DIP16 variant is ordered as SN74LS173N(LX) (page 4), which matches the requested MPN SN74LS173N."
        ],
        "pages_sent": 24,
        "cost_usd": 0.0713,
        "at": "2026-10-18T20:55:48"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603381788576264192",
        "pages": 24,
        "sha256": "77b29ea81dd377d5",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "sn74ls173n.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,
          19.177,
          6.98
        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "17a30b1f0ab3fd5384a1231e3c63c394888d5b952c542a8c189e023ed3467464",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sn74ls173n-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,
          19.177,
          6.98
        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "d392338468fbeef7371b0383a6f5af4e460a30d59027140ad9299a55e596d921",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}