SN74LVC74ADR

{
  "slug": "sn74lvc74adr",
  "version": "0.1.1",
  "type": "component",
  "description": "Texas Instruments Flip Flops, SOIC-14. Pinout settled in review by an AI reviewer against the manufacturer's datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic",
    "sn74lvc74adr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sn74lvc74adr.kicad_sym",
    "sn74lvc74adr.kicad_mod",
    "sn74lvc74adr.glb",
    "sn74lvc74adr.step",
    "sn74lvc74adr.lbr",
    "docs/hero.png",
    "docs/sn74lvc74adr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sn74lvc74adr-hero.glb",
    "sn74lvc74adr-hero.overlay.json",
    "sn74lvc74adr-etched.glb"
  ],
  "component": {
    "mpn": "SN74LVC74ADR",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-14",
    "pin_count": 14,
    "category": "Logic",
    "subcategory": "Flip Flops",
    "datasheet": "https://www.ti.com/lit/ds/symlink/sn74lvc74a.pdf",
    "parts": {
      "symbol": "sn74lvc74adr.kicad_sym",
      "footprint": "sn74lvc74adr.kicad_mod",
      "model_3d": "sn74lvc74adr-hero.glb",
      "model_3d_plain": "sn74lvc74adr-etched.glb",
      "model_3d_step": "sn74lvc74adr-etched.step",
      "model_3d_step_plain": "sn74lvc74adr.step",
      "lbr": "sn74lvc74adr.lbr"
    },
    "distributor_links": {
      "lcsc": "C7864",
      "digikey": "296-1240-2-ND",
      "mouser": "595-SN74LVC74ADR"
    },
    "distributor_check": {
      "checked_at": "2026-11-06T00:13:02Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-1240-2-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-SN74LVC74ADR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "1CLR",
        "type": "input",
        "description": "Channel 1 clear input; pulling it low sets the 1Q output low."
      },
      {
        "number": "2",
        "name": "1D",
        "type": "input",
        "description": "Channel 1 data input."
      },
      {
        "number": "3",
        "name": "1CLK",
        "type": "input",
        "description": "Channel 1 clock input; the flip-flop is positive-edge triggered."
      },
      {
        "number": "4",
        "name": "1PRE",
        "type": "input",
        "description": "Channel 1 preset input; pulling it low sets the 1Q output high."
      },
      {
        "number": "5",
        "name": "1Q",
        "type": "output",
        "description": "Channel 1 output."
      },
      {
        "number": "6",
        "name": "1Q\u0304",
        "type": "output",
        "description": "Channel 1 inverted output."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "8",
        "name": "2Q\u0304",
        "type": "output",
        "description": "Channel 2 inverted output."
      },
      {
        "number": "9",
        "name": "2Q",
        "type": "output",
        "description": "Channel 2 output."
      },
      {
        "number": "10",
        "name": "2PRE",
        "type": "input",
        "description": "Channel 2 preset input; pulling it low sets the 2Q output high."
      },
      {
        "number": "11",
        "name": "2CLK",
        "type": "input",
        "description": "Channel 2 clock input; the flip-flop is positive-edge triggered."
      },
      {
        "number": "12",
        "name": "2D",
        "type": "input",
        "description": "Channel 2 data input."
      },
      {
        "number": "13",
        "name": "2CLR",
        "type": "input",
        "description": "Channel 2 clear input; pulling it low sets the 2Q output low."
      },
      {
        "number": "14",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage; operating range is 1.65 V to 3.6 V for SN74LVC74A."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/sn74lvc74a.pdf",
        "pages": 43,
        "sha256": "5ebad76badd3a17b",
        "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": "sn74lvc74adr.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": "2026-11-06",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sn74lvc74adr-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": "996b050162a15398da68882bbdfe3e22cae67a7cdb8ec030697de076eb0fd442",
        "checked": "2026-11-06",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ],
    "package_dims": {
      "package_code": "D0014A (SOIC D, 14)",
      "source_page": 23,
      "D": {
        "nom_mm": 8.65,
        "range_mm": [
          8.55,
          8.75
        ]
      },
      "E1": {
        "nom_mm": 3.9,
        "range_mm": [
          3.8,
          4.0
        ]
      },
      "E": {
        "nom_mm": 6.0,
        "range_mm": [
          5.8,
          6.2
        ]
      },
      "e": {
        "nom_mm": 1.27,
        "range_mm": [
          null,
          null
        ]
      },
      "A": {
        "nom_mm": 1.75,
        "range_mm": [
          null,
          1.75
        ]
      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "sn74lvc74adr.step",
        "verdict": "PASS",
        "reasons": [
          "height and body within the datasheet's package drawing"
        ],
        "by": "factory/package_fit.py"
      }
    }
  }
}