CD74HCT4040M96

{
  "slug": "cd74hct4040m96",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Counters, Dividers, SOIC-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic",
    "cd74hct4040m96",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "cd74hct4040m96.kicad_sym",
    "cd74hct4040m96.kicad_mod",
    "cd74hct4040m96.glb",
    "cd74hct4040m96.step",
    "cd74hct4040m96.lbr",
    "docs/hero.png",
    "docs/cd74hct4040m96-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "cd74hct4040m96-hero.glb",
    "cd74hct4040m96-hero.overlay.json",
    "cd74hct4040m96-etched.glb"
  ],
  "component": {
    "mpn": "CD74HCT4040M96",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-16",
    "pin_count": 16,
    "category": "Logic",
    "subcategory": "Counters, Dividers",
    "datasheet": "https://www.ti.com/lit/ds/symlink/cd74hct4040m96.pdf",
    "parts": {
      "symbol": "cd74hct4040m96.kicad_sym",
      "footprint": "cd74hct4040m96.kicad_mod",
      "model_3d": "cd74hct4040m96-hero.glb",
      "model_3d_plain": "cd74hct4040m96-etched.glb",
      "model_3d_step": "cd74hct4040m96-etched.step",
      "model_3d_step_plain": "cd74hct4040m96.step",
      "lbr": "cd74hct4040m96.lbr"
    },
    "distributor_links": {
      "lcsc": "C2865249",
      "digikey": "296-14558-2-ND",
      "mouser": "595-CD74HCT4040M96"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T05:41:50Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-14558-2-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-CD74HCT4040M96",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "Q12",
        "type": "output",
        "description": "Counter stage 12 output, buffered, drives up to 10 LSTTL loads (standard output)."
      },
      {
        "number": "2",
        "name": "Q6",
        "type": "output",
        "description": "Counter stage 6 output, buffered, drives up to 10 LSTTL loads (standard output)."
      },
      {
        "number": "3",
        "name": "Q5",
        "type": "output",
        "description": "Counter stage 5 output, buffered, drives up to 10 LSTTL loads (standard output)."
      },
      {
        "number": "4",
        "name": "Q7",
        "type": "output",
        "description": "Counter stage 7 output, buffered, drives up to 10 LSTTL loads (standard output)."
      },
      {
        "number": "5",
        "name": "Q4",
        "type": "output",
        "description": "Counter stage 4 output, buffered, drives up to 10 LSTTL loads (standard output)."
      },
      {
        "number": "6",
        "name": "Q3",
        "type": "output",
        "description": "Counter stage 3 output, buffered, drives up to 10 LSTTL loads (standard output)."
      },
      {
        "number": "7",
        "name": "Q2",
        "type": "output",
        "description": "Counter stage 2 output, buffered, drives up to 10 LSTTL loads (standard output)."
      },
      {
        "number": "8",
        "name": "GND",
        "type": "power_in",
        "description": "Ground, 0 V reference."
      },
      {
        "number": "9",
        "name": "Q1'",
        "type": "output",
        "description": "Counter stage 1 output (CP to Q1' path), buffered, drives up to 10 LSTTL loads (standard output)."
      },
      {
        "number": "10",
        "name": "CP",
        "type": "input",
        "description": "Clock pulse input, buffered; counter advances on each negative (high-to-low) clock transition, HCT max input frequency 25 MHz at 4.5 V."
      },
      {
        "number": "11",
        "name": "MR",
        "type": "input",
        "description": "Master reset input; a high level resets all counter stages so all outputs go low."
      },
      {
        "number": "12",
        "name": "Q9",
        "type": "output",
        "description": "Counter stage 9 output, buffered, drives up to 10 LSTTL loads (standard output)."
      },
      {
        "number": "13",
        "name": "Q8",
        "type": "output",
        "description": "Counter stage 8 output, buffered, drives up to 10 LSTTL loads (standard output)."
      },
      {
        "number": "14",
        "name": "Q10",
        "type": "output",
        "description": "Counter stage 10 output, buffered, drives up to 10 LSTTL loads (standard output)."
      },
      {
        "number": "15",
        "name": "Q11",
        "type": "output",
        "description": "Counter stage 11 output, buffered, drives up to 10 LSTTL loads (standard output)."
      },
      {
        "number": "16",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply; HCT types operate from 4.5 V to 5.5 V, with a 0.1-µF bypass capacitor recommended close to the pin."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text+vision",
        "consensus_model": "claude-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pin 9 label is printed as Q1' on the package drawing; the datasheet gives no pin-function table, so ",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 23,
        "cost_usd": 0.397,
        "at": "2026-10-18T05:40:37"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/cd74hct4040m96.pdf",
        "pages": 23,
        "sha256": "85aaba4669d66cf5",
        "source_tier": "mfr"
      },
      "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": "cd74hct4040m96.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          9.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "d5eeddb4c0b304dc61950919b126fc61d7586abd5f16ab71a2a79759ec6498bf",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cd74hct4040m96-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          9.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "c886f46fac914fe25c1fe55bc9e56c1803f081806617147ca8eb0e1546e609bb",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}