74VHC4040FT

{
  "schema_version": 1,
  "type": "component",
  "slug": "74vhc4040ft",
  "title": "74VHC4040FT",
  "brief": "TOSHIBA Counters / Dividers, TSSOP16B. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "logic",
    "74vhc4040ft"
  ],
  "component": {
    "mpn": "74VHC4040FT",
    "manufacturer": "TOSHIBA",
    "package": "TSSOP16B",
    "pin_count": 16,
    "category": "Logic",
    "subcategory": "Counters / Dividers",
    "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2306140944_TOSHIBA-74VHC4040FT-BJ_C7421289.pdf",
    "parts": {
      "symbol": "74vhc4040ft.kicad_sym",
      "footprint": "74vhc4040ft.kicad_mod",
      "model_3d": "74vhc4040ft-etched.glb",
      "model_3d_plain": "74vhc4040ft.glb",
      "model_3d_step": "74vhc4040ft-etched.step",
      "model_3d_step_plain": "74vhc4040ft.step",
      "lbr": "74vhc4040ft.lbr"
    },
    "distributor_links": {
      "digikey": "74VHC4040FTTR-ND",
      "lcsc": "C2649406"
    },
    "pins": [
      {
        "number": "1",
        "name": "Q12",
        "type": "output",
        "description": "Counter stage 12 output (divide-by-4096 of CK). CMOS push-pull output, VOH >= VCC - 0.1 V at IOH = -50 uA; drives +/-8 mA at VCC = 4.5 V."
      },
      {
        "number": "2",
        "name": "Q6",
        "type": "output",
        "description": "Counter stage 6 output (divide-by-64 of CK). CMOS push-pull output driving up to +/-8 mA at VCC = 4.5 V."
      },
      {
        "number": "3",
        "name": "Q5",
        "type": "output",
        "description": "Counter stage 5 output (divide-by-32 of CK). CMOS push-pull output."
      },
      {
        "number": "4",
        "name": "Q7",
        "type": "output",
        "description": "Counter stage 7 output (divide-by-128 of CK). CMOS push-pull output."
      },
      {
        "number": "5",
        "name": "Q4",
        "type": "output",
        "description": "Counter stage 4 output (divide-by-16 of CK). CMOS push-pull output."
      },
      {
        "number": "6",
        "name": "Q3",
        "type": "output",
        "description": "Counter stage 3 output (divide-by-8 of CK). CMOS push-pull output."
      },
      {
        "number": "7",
        "name": "Q2",
        "type": "output",
        "description": "Counter stage 2 output (divide-by-4 of CK). CMOS push-pull output."
      },
      {
        "number": "8",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference (0 V). Connect to system ground."
      },
      {
        "number": "9",
        "name": "Q1",
        "type": "output",
        "description": "Counter stage 1 output (divide-by-2 of CK). CMOS push-pull output."
      },
      {
        "number": "10",
        "name": "CK",
        "type": "input",
        "description": "Clock input (active-low edge, negative-going transition advances the counter by one). CMOS-compatible input over 0 to 5.5 V with power-down protection."
      },
      {
        "number": "11",
        "name": "CLR",
        "type": "input",
        "description": "Asynchronous master reset input. When held high, all Q outputs are forced low; must be low for the counter to advance on CK edges."
      },
      {
        "number": "12",
        "name": "Q9",
        "type": "output",
        "description": "Counter stage 9 output (divide-by-512 of CK). CMOS push-pull output."
      },
      {
        "number": "13",
        "name": "Q8",
        "type": "output",
        "description": "Counter stage 8 output (divide-by-256 of CK). CMOS push-pull output."
      },
      {
        "number": "14",
        "name": "Q10",
        "type": "output",
        "description": "Counter stage 10 output (divide-by-1024 of CK). CMOS push-pull output."
      },
      {
        "number": "15",
        "name": "Q11",
        "type": "output",
        "description": "Counter stage 11 output (divide-by-2048 of CK). CMOS push-pull output."
      },
      {
        "number": "16",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply voltage, 2.0 V to 5.5 V operating range (7.0 V absolute maximum). Bypass with a local ceramic capacitor to GND."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2306140944_TOSHIBA-74VHC4040FT-BJ_C7421289.pdf",
        "pages": 10,
        "sha256": "714d69a237bc4689",
        "source_tier": "lcsc"
      },
      "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"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -2.8625,
        -2.275
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "TSSOP-16_4.4x5mm_P0.65mm@sha256:fbac79fc5f310754",
      "mark": "drawn"
    },
    "logic": {
      "family_id": "74VHC4040",
      "logic_family": "74VHC",
      "function_code": "4040",
      "function_class": "Counter",
      "function_name": "12-Bit Binary Counter",
      "manufacturer": null,
      "is_specialty": false
    },
    "models_3d": [
      {
        "file": "74vhc4040ft.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          5.0,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "6ad5e98224d02a427d9a6b929a28dbc158b9925fba5adec12db05079f1016948",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "74vhc4040ft-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          5.0,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "0a13c50c3a79cccc91169f75b91b2de4f416c3bb60d2f0d7ff1e8d713d475d9c",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "TOSHIBA",
      "Package": "TSSOP16B",
      "Category": "Logic",
      "Pins": "16"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "74vhc4040ft"
  ],
  "discovery_pitch": "74VHC4040FT (TOSHIBA) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "74vhc4040ft.kicad_sym",
    "74vhc4040ft.kicad_mod",
    "74vhc4040ft.glb",
    "74vhc4040ft.step",
    "74vhc4040ft.lbr",
    "docs/hero.png",
    "docs/74vhc4040ft-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "74vhc4040ft-etched.step"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-24T15:18:42.389Z"
}