CD4556BM96

{
  "schema_version": 1,
  "type": "component",
  "slug": "cd4556bm96",
  "title": "CD4556BM96",
  "brief": "Texas Instruments Signal Switches, Multiplexers, Decoders, SOIC-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",
    "cd4556bm96",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "CD4556BM96",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-16",
    "pin_count": 16,
    "category": "Logic",
    "subcategory": "Signal Switches, Multiplexers, Decoders",
    "datasheet": "https://www.ti.com/cn/lit/gpn/cd4556b",
    "parts": {
      "symbol": "cd4556bm96.kicad_sym",
      "footprint": "cd4556bm96.kicad_mod",
      "model_3d": "cd4556bm96-hero.glb",
      "model_3d_plain": "cd4556bm96.glb",
      "model_3d_step": "cd4556bm96-etched.step",
      "model_3d_step_plain": "cd4556bm96.step",
      "lbr": "cd4556bm96.lbr"
    },
    "distributor_links": {
      "lcsc": "C2674436",
      "digikey": "296-31541-2-ND",
      "mouser": "595-CD4556BM96"
    },
    "distributor_check": {
      "checked_at": "2026-10-05T22:31:00Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-31541-2-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-CD4556BM96",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "E1",
        "type": "input",
        "description": "Enable input (active-low symbol E-bar) of decoder 1; when high all outputs of the CD4556B remain high regardless of A and B."
      },
      {
        "number": "2",
        "name": "A1",
        "type": "input",
        "description": "Select input A of decoder 1; input voltage range -0.5V to VDD+0.5V."
      },
      {
        "number": "3",
        "name": "B1",
        "type": "input",
        "description": "Select input B of decoder 1; input voltage range -0.5V to VDD+0.5V."
      },
      {
        "number": "4",
        "name": "Q0_1",
        "type": "output",
        "description": "Decoder 1 output Q0-bar, low when selected (A=0, B=0, E=0) on the CD4556B."
      },
      {
        "number": "5",
        "name": "Q1_1",
        "type": "output",
        "description": "Decoder 1 output Q1-bar, low when selected (A=1, B=0, E=0) on the CD4556B."
      },
      {
        "number": "6",
        "name": "Q2_1",
        "type": "output",
        "description": "Decoder 1 output Q2-bar, low when selected (A=0, B=1, E=0) on the CD4556B."
      },
      {
        "number": "7",
        "name": "Q3_1",
        "type": "output",
        "description": "Decoder 1 output Q3-bar, low when selected (A=1, B=1, E=0) on the CD4556B."
      },
      {
        "number": "8",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground / negative supply terminal; voltages are referenced to VSS."
      },
      {
        "number": "9",
        "name": "Q3_2",
        "type": "output",
        "description": "Decoder 2 output Q3-bar, low when selected (A=1, B=1, E=0) on the CD4556B."
      },
      {
        "number": "10",
        "name": "Q2_2",
        "type": "output",
        "description": "Decoder 2 output Q2-bar, low when selected (A=0, B=1, E=0) on the CD4556B."
      },
      {
        "number": "11",
        "name": "Q1_2",
        "type": "output",
        "description": "Decoder 2 output Q1-bar, low when selected (A=1, B=0, E=0) on the CD4556B."
      },
      {
        "number": "12",
        "name": "Q0_2",
        "type": "output",
        "description": "Decoder 2 output Q0-bar, low when selected (A=0, B=0, E=0) on the CD4556B."
      },
      {
        "number": "13",
        "name": "B2",
        "type": "input",
        "description": "Select input B of decoder 2; input voltage range -0.5V to VDD+0.5V."
      },
      {
        "number": "14",
        "name": "A2",
        "type": "input",
        "description": "Select input A of decoder 2; input voltage range -0.5V to VDD+0.5V."
      },
      {
        "number": "15",
        "name": "E2",
        "type": "input",
        "description": "Enable input (E-bar) of decoder 2; when high all outputs of the CD4556B remain high regardless of A and B."
      },
      {
        "number": "16",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive supply; recommended 3V to 18V, absolute maximum -0.5V to +20V referenced to VSS."
      }
    ],
    "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": "vision",
        "consensus_model": "claude-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Datasheet shows one terminal-assignment diagram for the 16-lead packages (top view, pin numbers 1-16",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 12,
        "cost_usd": 0.1442,
        "at": "2026-10-05T22:30:43"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/cd4556b",
        "pages": 21,
        "sha256": "1e542db81c29dfa1",
        "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"
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SOIC-16",
      "Category": "Logic",
      "Pins": "16"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "cd4556bm96"
  ],
  "discovery_pitch": "CD4556BM96 (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "cd4556bm96.kicad_sym",
    "cd4556bm96.kicad_mod",
    "cd4556bm96.glb",
    "cd4556bm96.step",
    "cd4556bm96.lbr",
    "docs/hero.png",
    "docs/cd4556bm96-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "cd4556bm96-hero.glb",
    "cd4556bm96-hero.overlay.json"
  ],
  "visibility": {
    "public": true
  }
}