CD74AC540M96

{
  "slug": "cd74ac540m96",
  "version": "0.1.1",
  "type": "component",
  "description": "Texas Instruments Buffers, Drivers, Receivers, Transceivers, SOIC-20-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic",
    "cd74ac540m96",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "cd74ac540m96.kicad_sym",
    "cd74ac540m96.kicad_mod",
    "cd74ac540m96.glb",
    "cd74ac540m96.step",
    "cd74ac540m96.lbr",
    "docs/hero.png",
    "docs/cd74ac540m96-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "component": {
    "mpn": "CD74AC540M96",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-20-300mil",
    "pin_count": 20,
    "category": "Logic",
    "subcategory": "Buffers, Drivers, Receivers, Transceivers",
    "datasheet": "https://www.ti.com/cn/lit/gpn/cd74ac540",
    "parts": {
      "symbol": "cd74ac540m96.kicad_sym",
      "footprint": "cd74ac540m96.kicad_mod",
      "model_3d": "cd74ac540m96-etched.glb",
      "model_3d_plain": "cd74ac540m96.glb",
      "model_3d_step": "cd74ac540m96-etched.step",
      "model_3d_step_plain": "cd74ac540m96.step",
      "lbr": "cd74ac540m96.lbr"
    },
    "distributor_links": {
      "lcsc": "C2675644",
      "digikey": "296-44775-2-ND",
      "mouser": "595-CD74AC540M96"
    },
    "distributor_check": {
      "checked_at": "2026-09-27T05:32:24Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-44775-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-CD74AC540M96",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "!MR",
        "type": "input",
        "description": "Master reset, active low; asynchronously resets the device."
      },
      {
        "number": "2",
        "name": "Q0",
        "type": "output",
        "description": "Output Q0; data output for channel 0."
      },
      {
        "number": "3",
        "name": "D0",
        "type": "input",
        "description": "Input D0; data input for channel 0."
      },
      {
        "number": "4",
        "name": "D1",
        "type": "input",
        "description": "Input D1; data input for channel 1."
      },
      {
        "number": "5",
        "name": "Q1",
        "type": "output",
        "description": "Output Q1; data output for channel 1."
      },
      {
        "number": "6",
        "name": "Q2",
        "type": "output",
        "description": "Output Q2; data output for channel 2."
      },
      {
        "number": "7",
        "name": "D2",
        "type": "input",
        "description": "Input D2; data input for channel 2."
      },
      {
        "number": "8",
        "name": "D3",
        "type": "input",
        "description": "Input D3; data input for channel 3."
      },
      {
        "number": "9",
        "name": "Q3",
        "type": "output",
        "description": "Output Q3; data output for channel 3."
      },
      {
        "number": "10",
        "name": "GND",
        "type": "power_in",
        "description": "Ground; 0V power supply reference."
      },
      {
        "number": "11",
        "name": "CP",
        "type": "input",
        "description": "Clock input, rising edge triggered; latches D data to Q outputs on rising edge."
      },
      {
        "number": "12",
        "name": "Q4",
        "type": "output",
        "description": "Output Q4; data output for channel 4."
      },
      {
        "number": "13",
        "name": "D4",
        "type": "input",
        "description": "Input D4; data input for channel 4."
      },
      {
        "number": "14",
        "name": "D5",
        "type": "input",
        "description": "Input D5; data input for channel 5."
      },
      {
        "number": "15",
        "name": "Q5",
        "type": "output",
        "description": "Output Q5; data output for channel 5."
      },
      {
        "number": "16",
        "name": "Q6",
        "type": "output",
        "description": "Output Q6; data output for channel 6."
      },
      {
        "number": "17",
        "name": "D6",
        "type": "input",
        "description": "Input D6; data input for channel 6."
      },
      {
        "number": "18",
        "name": "D7",
        "type": "input",
        "description": "Input D7; data input for channel 7."
      },
      {
        "number": "19",
        "name": "Q7",
        "type": "output",
        "description": "Output Q7; data output for channel 7."
      },
      {
        "number": "20",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage; 1.5V to 5.5V for AC series (CD74AC540)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.2",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.2",
        "primary_model": "claude-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-4-6",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Description on PAGE 1 references two low-level-active output enable pins (OE1, OE2) and truth tables"
        ],
        "pages_sent": 29,
        "cost_usd": 0.5192,
        "at": "2026-09-27T05:32:06"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/cd74ac540",
        "pages": 29,
        "sha256": "3bbe83696bf3757a",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 20,
        "described": 20,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "cd74ac540m96.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          10.3,
          12.8,
          2.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "59a10b341e6972b31d81802a048060326da627d8b92dcf4263064f4f62ec808e",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cd74ac540m96-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          10.3,
          12.8,
          2.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "05162632c2d3b51b88f323249c0103953c1e0b5adfa0a259a6c27df0e8e4fe51",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}