SN74LS174N

{
  "slug": "sn74ls174n",
  "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",
    "sn74ls174n",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sn74ls174n.kicad_sym",
    "sn74ls174n.kicad_mod",
    "sn74ls174n.glb",
    "sn74ls174n.step",
    "sn74ls174n.lbr",
    "docs/hero.png",
    "docs/sn74ls174n-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sn74ls174n-hero.glb",
    "sn74ls174n-hero.overlay.json",
    "sn74ls174n-etched.glb"
  ],
  "component": {
    "mpn": "SN74LS174N",
    "manufacturer": "lingxingic",
    "package": "DIP-16",
    "pin_count": 16,
    "category": "Logic",
    "subcategory": "Flip Flops",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603393140615094272",
    "parts": {
      "symbol": "sn74ls174n.kicad_sym",
      "footprint": "sn74ls174n.kicad_mod",
      "model_3d": "sn74ls174n-hero.glb",
      "model_3d_plain": "sn74ls174n-etched.glb",
      "model_3d_step": "sn74ls174n-etched.step",
      "model_3d_step_plain": "sn74ls174n.step",
      "lbr": "sn74ls174n.lbr"
    },
    "distributor_links": {
      "lcsc": "C22449625",
      "digikey": "2156-SN74LS174N-ND",
      "mouser": "595-SN74LS174N"
    },
    "distributor_check": {
      "checked_at": "2026-10-15T02:13:14Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "2156-SN74LS174N-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-SN74LS174N",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "MR",
        "type": "input",
        "description": "Asynchronous master reset input, active LOW."
      },
      {
        "number": "2",
        "name": "Q0",
        "type": "output",
        "description": "Data output of flip-flop 0."
      },
      {
        "number": "3",
        "name": "D0",
        "type": "input",
        "description": "Data input of flip-flop 0."
      },
      {
        "number": "4",
        "name": "D1",
        "type": "input",
        "description": "Data input of flip-flop 1."
      },
      {
        "number": "5",
        "name": "Q1",
        "type": "output",
        "description": "Data output of flip-flop 1."
      },
      {
        "number": "6",
        "name": "D2",
        "type": "input",
        "description": "Data input of flip-flop 2."
      },
      {
        "number": "7",
        "name": "Q2",
        "type": "output",
        "description": "Data output of flip-flop 2."
      },
      {
        "number": "8",
        "name": "GND",
        "type": "power_in",
        "description": "Ground (0V)."
      },
      {
        "number": "9",
        "name": "CP",
        "type": "input",
        "description": "Clock input, triggered on the LOW-to-HIGH edge."
      },
      {
        "number": "10",
        "name": "Q3",
        "type": "output",
        "description": "Data output of flip-flop 3."
      },
      {
        "number": "11",
        "name": "D3",
        "type": "input",
        "description": "Data input of flip-flop 3."
      },
      {
        "number": "12",
        "name": "Q4",
        "type": "output",
        "description": "Data output of flip-flop 4."
      },
      {
        "number": "13",
        "name": "D4",
        "type": "input",
        "description": "Data input of flip-flop 4."
      },
      {
        "number": "14",
        "name": "D5",
        "type": "input",
        "description": "Data input of flip-flop 5."
      },
      {
        "number": "15",
        "name": "Q5",
        "type": "output",
        "description": "Data output of flip-flop 5."
      },
      {
        "number": "16",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage; recommended range is 2.0 V to 6.0 V with 5.0 V typical."
      }
    ],
    "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 DIP16 variant is confirmed by the ordering table on page 3 (DIP16 packaging, marking SN74LS174N); The pin configuration figure on page 5 has scrambled text extraction. The pin table on page 6 was us; Pin descriptions for Dn, Qn and CP are short, since the datasheet only gives brief functional descri"
        ],
        "pages_sent": 16,
        "cost_usd": 0.052,
        "at": "2026-10-15T02:12:56"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603393140615094272",
        "pages": 16,
        "sha256": "e1ad81f05f5037c8",
        "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": "sn74ls174n.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": "2026-10-15",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sn74ls174n-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": "d9e13057d4bb1150f965c672c45f879f2a345199bcc287bff1d587d0e4c8bc67",
        "checked": "2026-10-15",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}