74AHCT74D

{
  "slug": "74ahct74d",
  "version": "0.1.0",
  "type": "component",
  "description": "Nexperia Flip Flops, SOIC-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic",
    "74ahct74d",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "74ahct74d.kicad_sym",
    "74ahct74d.kicad_mod",
    "74ahct74d.glb",
    "74ahct74d.step",
    "74ahct74d.lbr",
    "docs/hero.png",
    "docs/74ahct74d-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "74ahct74d-hero.glb",
    "74ahct74d-hero.overlay.json",
    "74ahct74d-etched.glb"
  ],
  "component": {
    "mpn": "74AHCT74D",
    "manufacturer": "Nexperia",
    "package": "SOIC-14",
    "pin_count": 14,
    "category": "Logic",
    "subcategory": "Flip Flops",
    "datasheet": "https://assets.nexperia.com/documents/data-sheet/74AHCT74D.pdf",
    "parts": {
      "symbol": "74ahct74d.kicad_sym",
      "footprint": "74ahct74d.kicad_mod",
      "model_3d": "74ahct74d-hero.glb",
      "model_3d_plain": "74ahct74d-etched.glb",
      "model_3d_step": "74ahct74d-etched.step",
      "model_3d_step_plain": "74ahct74d.step",
      "lbr": "74ahct74d.lbr"
    },
    "distributor_links": {
      "lcsc": "C169793"
    },
    "distributor_check": {
      "checked_at": "2026-10-27T18:36:48Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "1RD",
        "type": "input",
        "description": "Asynchronous reset direct input for flip-flop 1, active LOW, operating independently of the clock input."
      },
      {
        "number": "2",
        "name": "1D",
        "type": "input",
        "description": "Data input for flip-flop 1, transferred to 1Q on the LOW to HIGH clock transition; must be stable one set-up time before that transition."
      },
      {
        "number": "3",
        "name": "1CP",
        "type": "input",
        "description": "Clock input for flip-flop 1, edge-triggered on the LOW to HIGH transition, with Schmitt-trigger action for slow clock edges."
      },
      {
        "number": "4",
        "name": "1SD",
        "type": "input",
        "description": "Asynchronous set direct input for flip-flop 1, active LOW, operating independently of the clock input."
      },
      {
        "number": "5",
        "name": "1Q",
        "type": "output",
        "description": "True flip-flop output of flip-flop 1."
      },
      {
        "number": "6",
        "name": "1Q",
        "type": "output",
        "description": "Complement flip-flop output of flip-flop 1."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Ground (0 V) reference for all voltages."
      },
      {
        "number": "8",
        "name": "2Q",
        "type": "output",
        "description": "Complement flip-flop output of flip-flop 2."
      },
      {
        "number": "9",
        "name": "2Q",
        "type": "output",
        "description": "True flip-flop output of flip-flop 2."
      },
      {
        "number": "10",
        "name": "2SD",
        "type": "input",
        "description": "Asynchronous set direct input for flip-flop 2, active LOW, operating independently of the clock input."
      },
      {
        "number": "11",
        "name": "2CP",
        "type": "input",
        "description": "Clock input for flip-flop 2, edge-triggered on the LOW to HIGH transition, with Schmitt-trigger action for slow clock edges."
      },
      {
        "number": "12",
        "name": "2D",
        "type": "input",
        "description": "Data input for flip-flop 2, transferred to 2Q on the LOW to HIGH clock transition; must be stable one set-up time before that transition."
      },
      {
        "number": "13",
        "name": "2RD",
        "type": "input",
        "description": "Asynchronous reset direct input for flip-flop 2, active LOW, operating independently of the clock input."
      },
      {
        "number": "14",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage; recommended 2.0 V to 5.5 V for 74AHC74 and 4.5 V to 5.5 V for 74AHCT74."
      }
    ],
    "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": null,
        "consensus": "skipped (clean text read)",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [],
        "pages_sent": 15,
        "cost_usd": 0.0023,
        "at": "2026-10-27T18:36:24"
      },
      "datasheet": {
        "url": "https://assets.nexperia.com/documents/data-sheet/74AHCT74D.pdf",
        "pages": 15,
        "sha256": "16494543b3aab84c",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 14,
        "described": 14,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "74ahct74d.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          8.7,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "3b9a775da256c8afcc28dcddfbc2eb3f266107fe61ce8446d96f2c52b6f44a70",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "74ahct74d-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          8.7,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "44f1117a00463a2b7895cc5acc9b36bbb7ac450c1ab8d7d61f77fceaa2c49c9e",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}