HEF4040BT

{
  "schema_version": 1,
  "type": "component",
  "slug": "hef4040bt",
  "title": "HEF4040BT",
  "brief": "Nexperia Counters / Dividers, SOIC-16. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "logic",
    "hef4040bt"
  ],
  "component": {
    "mpn": "HEF4040BT",
    "manufacturer": "Nexperia",
    "package": "SOIC-16",
    "pin_count": 16,
    "category": "Logic",
    "subcategory": "Counters / Dividers",
    "datasheet": "https://assets.nexperia.com/documents/data-sheet/HEF4040BT.pdf",
    "parts": {
      "symbol": "hef4040bt.kicad_sym",
      "footprint": "hef4040bt.kicad_mod",
      "model_3d": "hef4040bt-etched.glb",
      "model_3d_plain": "hef4040bt.glb",
      "model_3d_step": "hef4040bt-etched.step",
      "model_3d_step_plain": "hef4040bt.step",
      "lbr": "hef4040bt.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "Q11",
        "type": "output",
        "description": "Parallel output bit 11 (highest stage, MSB of the 12-stage ripple counter). CMOS push-pull output; toggles every 4096 CP falling edges."
      },
      {
        "number": "2",
        "name": "Q5",
        "type": "output",
        "description": "Parallel output bit 5 of the ripple counter. CMOS push-pull output; toggles every 64 CP falling edges."
      },
      {
        "number": "3",
        "name": "Q4",
        "type": "output",
        "description": "Parallel output bit 4 of the ripple counter. CMOS push-pull output; toggles every 32 CP falling edges."
      },
      {
        "number": "4",
        "name": "Q6",
        "type": "output",
        "description": "Parallel output bit 6 of the ripple counter. CMOS push-pull output; toggles every 128 CP falling edges."
      },
      {
        "number": "5",
        "name": "Q3",
        "type": "output",
        "description": "Parallel output bit 3 of the ripple counter. CMOS push-pull output; toggles every 16 CP falling edges."
      },
      {
        "number": "6",
        "name": "Q2",
        "type": "output",
        "description": "Parallel output bit 2 of the ripple counter. CMOS push-pull output; toggles every 8 CP falling edges."
      },
      {
        "number": "7",
        "name": "Q1",
        "type": "output",
        "description": "Parallel output bit 1 of the ripple counter. CMOS push-pull output; toggles every 4 CP falling edges."
      },
      {
        "number": "8",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground supply voltage (0 V reference)."
      },
      {
        "number": "9",
        "name": "Q0",
        "type": "output",
        "description": "Parallel output bit 0 (LSB of the 12-stage ripple counter). CMOS push-pull output; toggles on every HIGH-to-LOW transition of CP."
      },
      {
        "number": "10",
        "name": "CP",
        "type": "input",
        "description": "Clock input (HIGH-to-LOW edge-triggered). The counter advances by one on each falling edge of CP."
      },
      {
        "number": "11",
        "name": "MR",
        "type": "input",
        "description": "Master reset input, active HIGH. A HIGH on MR asynchronously clears all counter stages and forces all outputs Q0-Q11 LOW, independent of CP."
      },
      {
        "number": "12",
        "name": "Q8",
        "type": "output",
        "description": "Parallel output bit 8 of the ripple counter. CMOS push-pull output; toggles every 512 CP falling edges."
      },
      {
        "number": "13",
        "name": "Q7",
        "type": "output",
        "description": "Parallel output bit 7 of the ripple counter. CMOS push-pull output; toggles every 256 CP falling edges."
      },
      {
        "number": "14",
        "name": "Q9",
        "type": "output",
        "description": "Parallel output bit 9 of the ripple counter. CMOS push-pull output; toggles every 1024 CP falling edges."
      },
      {
        "number": "15",
        "name": "Q10",
        "type": "output",
        "description": "Parallel output bit 10 of the ripple counter. CMOS push-pull output; toggles every 2048 CP falling edges."
      },
      {
        "number": "16",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive supply voltage. Recommended operating range 3.0 V to 15.0 V; absolute maximum 18 V."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://assets.nexperia.com/documents/data-sheet/HEF4040BT.pdf",
        "pages": 11,
        "sha256": "79a6d15b3b191c5c",
        "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"
    },
    "logic": {
      "family_id": "CD4040",
      "logic_family": "CD4000",
      "function_code": "4040",
      "function_class": "Counter",
      "function_name": "12-Bit Binary Counter",
      "manufacturer": "NXP (legacy Philips)",
      "is_specialty": false
    },
    "models_3d": [
      {
        "file": "hef4040bt.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          9.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "d5eeddb4c0b304dc61950919b126fc61d7586abd5f16ab71a2a79759ec6498bf",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "hef4040bt-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          9.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "61ff203830f96b6026fe00418cc173403549f260d50790512279366608b9e561",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Nexperia",
      "Package": "SOIC-16",
      "Category": "Logic",
      "Pins": "16"
    }
  },
  "variants": [
    {
      "mpn": "HEF4040BTT",
      "kind": "packaging"
    }
  ],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "hef4040bt"
  ],
  "discovery_pitch": "HEF4040BT (Nexperia) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "hef4040bt.kicad_sym",
    "hef4040bt.kicad_mod",
    "hef4040bt.glb",
    "hef4040bt.step",
    "hef4040bt.lbr",
    "docs/hero.png",
    "docs/hef4040bt-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-24T21:41:59.611Z"
}