CD4556BE

{
  "schema_version": 1,
  "type": "component",
  "slug": "cd4556be",
  "title": "CD4556BE",
  "brief": "lingxingic Signal Switches, Multiplexers, Decoders, DIP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "logic",
    "cd4556be",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "CD4556BE",
    "manufacturer": "lingxingic",
    "package": "DIP-16",
    "pin_count": 16,
    "category": "Logic",
    "subcategory": "Signal Switches, Multiplexers, Decoders",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603388813414572032",
    "parts": {
      "symbol": "cd4556be.kicad_sym",
      "footprint": "cd4556be.kicad_mod",
      "model_3d": "cd4556be-hero.glb",
      "model_3d_plain": "cd4556be-etched.glb",
      "model_3d_step": "cd4556be-etched.step",
      "model_3d_step_plain": "cd4556be.step",
      "lbr": "cd4556be.lbr"
    },
    "distributor_links": {
      "lcsc": "C32710655",
      "digikey": "296-3537-5-ND",
      "mouser": "595-CD4556BE"
    },
    "distributor_check": {
      "checked_at": "2026-10-15T08:14:13Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-3537-5-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-CD4556BE",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "EA",
        "type": "input",
        "description": "Enable input for decoder A; per the function table, EA LOW enables the decoder and EA HIGH forces outputs O0A to O3A HIGH."
      },
      {
        "number": "2",
        "name": "A0A",
        "type": "input",
        "description": "Address input A0 for decoder A, selecting which of outputs O0A to O3A goes LOW together with A1A."
      },
      {
        "number": "3",
        "name": "A1A",
        "type": "input",
        "description": "Address input A1 for decoder A, selecting which of outputs O0A to O3A goes LOW together with A0A."
      },
      {
        "number": "4",
        "name": "O0A",
        "type": "output",
        "description": "Active-LOW output 0 of decoder A, driven LOW when EA is LOW and the address A1A/A0A is 00."
      },
      {
        "number": "5",
        "name": "O1A",
        "type": "output",
        "description": "Active-LOW output 1 of decoder A, driven LOW when EA is LOW and the address A1A/A0A is 01."
      },
      {
        "number": "6",
        "name": "O2A",
        "type": "output",
        "description": "Active-LOW output 2 of decoder A, driven LOW when EA is LOW and the address A1A/A0A is 10."
      },
      {
        "number": "7",
        "name": "O3A",
        "type": "output",
        "description": "Active-LOW output 3 of decoder A, driven LOW when EA is LOW and the address A1A/A0A is 11."
      },
      {
        "number": "8",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground supply voltage, the 0 V reference for all voltages on the device."
      },
      {
        "number": "9",
        "name": "O3B",
        "type": "output",
        "description": "Active-LOW output 3 of decoder B, driven LOW when EB is LOW and the address A1B/A0B is 11."
      },
      {
        "number": "10",
        "name": "O2B",
        "type": "output",
        "description": "Active-LOW output 2 of decoder B, driven LOW when EB is LOW and the address A1B/A0B is 10."
      },
      {
        "number": "11",
        "name": "O1B",
        "type": "output",
        "description": "Active-LOW output 1 of decoder B, driven LOW when EB is LOW and the address A1B/A0B is 01."
      },
      {
        "number": "12",
        "name": "O0B",
        "type": "output",
        "description": "Active-LOW output 0 of decoder B, driven LOW when EB is LOW and the address A1B/A0B is 00."
      },
      {
        "number": "13",
        "name": "A1B",
        "type": "input",
        "description": "Address input A1 for decoder B, selecting which of outputs O0B to O3B goes LOW together with A0B."
      },
      {
        "number": "14",
        "name": "A0B",
        "type": "input",
        "description": "Address input A0 for decoder B, selecting which of outputs O0B to O3B goes LOW together with A1B."
      },
      {
        "number": "15",
        "name": "EB",
        "type": "input",
        "description": "Enable input for decoder B; per the function table, EB LOW enables the decoder and EB HIGH forces outputs O0B to O3B HIGH."
      },
      {
        "number": "16",
        "name": "VDD",
        "type": "power_in",
        "description": "Supply voltage, recommended range 3 V to 15 V referenced to VSS (absolute maximum +18 V)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pin numbers and names are taken from the Pin Description table (page 5) and match the Pin Configurat; The ordering table text on page 3 is garbled in extraction, so the mapping of CD4556BE to DIP16 is i; Pin descriptions for the enable and output pins are derived from the function table (page 5) and the"
        ],
        "pages_sent": 14,
        "cost_usd": 0.0458,
        "at": "2026-10-15T08:13:54"
      },
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        "pages": 14,
        "sha256": "d15c2f194bbc8c74",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
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        "zmin_mm": -3.3,
        "centre_offset_mm": 0,
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        "sha256": "17a30b1f0ab3fd5384a1231e3c63c394888d5b952c542a8c189e023ed3467464",
        "checked": "2026-10-15",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
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        "sha256": "b41d69337e7359a08ded6876ad516545098cf356f8a2c1020e3413a393c316a6",
        "checked": "2026-10-15",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "lingxingic",
      "Package": "DIP-16",
      "Category": "Logic",
      "Pins": "16"
    },
    "characteristics": {
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          "name": "soldering temperature",
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          "name": "input leakage current",
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          "conditions": "Tamb=-40℃ to +125℃; VDD=15V; VI=15V or GND",
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