CD4081B Quad AND Gate

{
  "schema_version": 1,
  "type": "component",
  "slug": "cd4081",
  "title": "CD4081B Quad AND Gate",
  "brief": "Quad AND Gate in the 4000B CMOS family, 3 V to 18 V.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "logic",
    "-gate",
    "4000-series",
    "cmos",
    "ti",
    "soic-14"
  ],
  "component": {
    "mpn": "CD4081B",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-14",
    "pin_count": 14,
    "category": "Logic",
    "subcategory": "Logic Gate",
    "datasheet": "https://www.ti.com/lit/ds/symlink/cd4081b.pdf",
    "parts": {
      "symbol": "cd4081.kicad_sym",
      "footprint": "cd4081.kicad_mod",
      "model_3d": "cd4081-etched.glb",
      "model_3d_plain": "cd4081.glb",
      "model_3d_step": "cd4081-etched.step",
      "model_3d_step_plain": "cd4081.step",
      "lbr": "cd4081.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "1A",
        "type": "input",
        "description": "Gate 1 input A. CMOS logic input, high-impedance; protected by CMOS input protection network. Recommended VIH ≥ 3.5 V at VDD=5 V."
      },
      {
        "number": "2",
        "name": "1B",
        "type": "input",
        "description": "Gate 1 input B. CMOS logic input paired with pin 1 to drive AND gate 1."
      },
      {
        "number": "3",
        "name": "1Y",
        "type": "output",
        "description": "Gate 1 output, J = 1A · 1B. Symmetrical CMOS push-pull output; IOH/IOL ≈ 1 mA at VDD=5 V."
      },
      {
        "number": "4",
        "name": "2Y",
        "type": "output",
        "description": "Gate 2 output, K = 2A · 2B. Symmetrical CMOS push-pull output."
      },
      {
        "number": "5",
        "name": "2A",
        "type": "input",
        "description": "Gate 2 input A. CMOS logic input."
      },
      {
        "number": "6",
        "name": "2B",
        "type": "input",
        "description": "Gate 2 input B. CMOS logic input paired with pin 5 to drive AND gate 2."
      },
      {
        "number": "7",
        "name": "VSS",
        "type": "power_in",
        "description": "Negative supply / ground reference (0 V). Common return for all four gates."
      },
      {
        "number": "8",
        "name": "3A",
        "type": "input",
        "description": "Gate 3 input A. CMOS logic input."
      },
      {
        "number": "9",
        "name": "3B",
        "type": "input",
        "description": "Gate 3 input B. CMOS logic input paired with pin 8 to drive AND gate 3."
      },
      {
        "number": "10",
        "name": "3Y",
        "type": "output",
        "description": "Gate 3 output, L = 3A · 3B. Symmetrical CMOS push-pull output."
      },
      {
        "number": "11",
        "name": "4Y",
        "type": "output",
        "description": "Gate 4 output, M = 4A · 4B. Symmetrical CMOS push-pull output."
      },
      {
        "number": "12",
        "name": "4A",
        "type": "input",
        "description": "Gate 4 input A. CMOS logic input."
      },
      {
        "number": "13",
        "name": "4B",
        "type": "input",
        "description": "Gate 4 input B. CMOS logic input paired with pin 12 to drive AND gate 4."
      },
      {
        "number": "14",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive supply. Recommended 3 V ≤ VDD ≤ 18 V (absolute max −0.5 V to +20 V referenced to VSS). Decouple to VSS with a local bypass capacitor."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/cd4081b.pdf",
        "pages": 34,
        "sha256": "0eed8b8607c5c076",
        "source_tier": "mfr"
      },
      "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"
    },
    "logic": {
      "family_id": "CD4081",
      "logic_family": "CD4000",
      "function_code": "4081",
      "function_class": "Gate",
      "function_name": "Quad 2-Input AND Gate",
      "manufacturer": "Texas Instruments",
      "is_specialty": false
    },
    "models_3d": [
      {
        "file": "cd4081.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          8.7,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "3b9a775da256c8afcc28dcddfbc2eb3f266107fe61ce8446d96f2c52b6f44a70",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cd4081-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          8.7,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "cc2434c8a06435c1bf170a3ad7480adb50be541c7d4b888389e83b20c0b312dc",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Type": "Quad AND Gate",
      "Logic family": "4000B (CMOS)",
      "Supply voltage": "3 V to 18 V",
      "Propagation delay": "45 ns typ at 10 V",
      "Operating temperature": "-55 C to 125 C"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "AND gate",
    "CMOS logic",
    "wide-voltage logic",
    "glue logic"
  ],
  "discovery_pitch": "The CD4081B contains four independent 2-input AND gates in the 4000B CMOS family; each output is high only when both inputs are high.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "cd4081.kicad_sym",
    "cd4081.kicad_mod",
    "cd4081.glb",
    "cd4081.step",
    "cd4081.lbr",
    "docs/hero.png",
    "docs/cd4081-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "cd4081-etched.step"
  ],
  "variants": [
    {
      "mpn": "CD4081BE",
      "kind": "unknown"
    },
    {
      "mpn": "CD4081BEE4",
      "kind": "unknown"
    },
    {
      "mpn": "CD4081BF",
      "kind": "unknown"
    },
    {
      "mpn": "CD4081BF3A",
      "kind": "unknown"
    },
    {
      "mpn": "CD4081BAS2534",
      "kind": "unknown"
    },
    {
      "mpn": "CD4081BM",
      "kind": "unknown"
    },
    {
      "mpn": "CD4081BM96",
      "kind": "unknown"
    },
    {
      "mpn": "CD4081BME4",
      "kind": "unknown"
    },
    {
      "mpn": "CD4081BMG4",
      "kind": "unknown"
    },
    {
      "mpn": "CD4081BMT",
      "kind": "unknown"
    },
    {
      "mpn": "CD4081BMTE4",
      "kind": "unknown"
    },
    {
      "mpn": "CD4081BMTG4",
      "kind": "unknown"
    },
    {
      "mpn": "CD4081BM96E4",
      "kind": "unknown"
    },
    {
      "mpn": "CD4081BM96G4",
      "kind": "unknown"
    },
    {
      "mpn": "CD4081BNSR",
      "kind": "unknown"
    },
    {
      "mpn": "CD4081BNSRE4",
      "kind": "unknown"
    },
    {
      "mpn": "CD4081BNSRG4",
      "kind": "unknown"
    },
    {
      "mpn": "CD4081BPW",
      "kind": "unknown"
    },
    {
      "mpn": "CD4081BPWR",
      "kind": "unknown"
    },
    {
      "mpn": "CD4081BPWE4",
      "kind": "unknown"
    },
    {
      "mpn": "CD4081BPWG4",
      "kind": "unknown"
    },
    {
      "mpn": "CD4081BPWRE4",
      "kind": "unknown"
    },
    {
      "mpn": "CD4081BPWRG4",
      "kind": "unknown"
    }
  ]
}