SN74LVC74ADBR

{
  "slug": "sn74lvc74adbr",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Flip Flops, SSOP-14-208mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic",
    "sn74lvc74adbr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sn74lvc74adbr.kicad_sym",
    "sn74lvc74adbr.kicad_mod",
    "sn74lvc74adbr.glb",
    "sn74lvc74adbr.step",
    "sn74lvc74adbr.lbr",
    "docs/hero.png",
    "docs/sn74lvc74adbr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sn74lvc74adbr-hero.glb",
    "sn74lvc74adbr-hero.overlay.json"
  ],
  "component": {
    "mpn": "SN74LVC74ADBR",
    "manufacturer": "Texas Instruments",
    "package": "SSOP-14-208mil",
    "pin_count": 14,
    "category": "Logic",
    "subcategory": "Flip Flops",
    "datasheet": "https://www.ti.com/cn/lit/gpn/sn74lvc74a",
    "parts": {
      "symbol": "sn74lvc74adbr.kicad_sym",
      "footprint": "sn74lvc74adbr.kicad_mod",
      "model_3d": "sn74lvc74adbr-hero.glb",
      "model_3d_plain": "sn74lvc74adbr.glb",
      "model_3d_step": "sn74lvc74adbr-etched.step",
      "model_3d_step_plain": "sn74lvc74adbr.step",
      "lbr": "sn74lvc74adbr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2877537",
      "digikey": "296-1239-2-ND",
      "mouser": "595-SN74LVC74ADBR"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T23:34:26Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-1239-2-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-SN74LVC74ADBR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "1CLR",
        "type": "input",
        "description": "Channel 1 clear input; driving it low forces the 1Q output low (active-low asynchronous clear)."
      },
      {
        "number": "2",
        "name": "1D",
        "type": "input",
        "description": "Channel 1 data input, sampled on the rising edge of 1CLK."
      },
      {
        "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; driving it low forces the 1Q output high (active-low asynchronous preset)."
      },
      {
        "number": "5",
        "name": "1Q",
        "type": "output",
        "description": "Channel 1 true output."
      },
      {
        "number": "6",
        "name": "~{1Q}",
        "type": "output",
        "description": "Channel 1 complementary (inverted) output."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin."
      },
      {
        "number": "8",
        "name": "~{2Q}",
        "type": "output",
        "description": "Channel 2 complementary (inverted) output."
      },
      {
        "number": "9",
        "name": "2Q",
        "type": "output",
        "description": "Channel 2 true output."
      },
      {
        "number": "10",
        "name": "2PRE",
        "type": "input",
        "description": "Channel 2 preset input; driving it low forces the 2Q output high (active-low asynchronous preset)."
      },
      {
        "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, sampled on the rising edge of 2CLK."
      },
      {
        "number": "13",
        "name": "2CLR",
        "type": "input",
        "description": "Channel 2 clear input; driving it low forces the 2Q output low (active-low asynchronous clear)."
      },
      {
        "number": "14",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage; SN74LVC74A operates from 1.65 V to 3.6 V, and each VCC terminal should have a good bypass capacitor (0.1 µF recommended for single-supply devices)."
      }
    ],
    "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 DB (SSOP-14) pinout was taken from the 14-pin column of Table 4-1 (pin functions) on page 3; the; Text extraction dropped the overbar on the complementary outputs; pins 6 and 8 are shown as 1Q̄ and ; The datasheet is a Chinese translation of TI SCAS287; pin descriptions were translated into English "
        ],
        "pages_sent": 14,
        "cost_usd": 0.0917,
        "at": "2026-10-08T23:33:32"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/sn74lvc74a",
        "pages": 42,
        "sha256": "438d0c0b521c69aa",
        "source_tier": "lcsc"
      },
      "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": "sn74lvc74adbr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7.8,
          6.2,
          2.1
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "b6842172112d57dc0e70c4a107e6e3624474bd219b847f0f2ad2484167c8e6a4",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sn74lvc74adbr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7.8,
          6.2,
          2.1
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "012d2db81c948fa216d73b60720baedd972217e566fa22edcf83ef83b540ddcc",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}