74CBTLV3257D

{
  "slug": "74cbtlv3257d",
  "version": "0.1.0",
  "type": "component",
  "description": "Nexperia Signal Switches, Multiplexers, Decoders, SO-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic",
    "74cbtlv3257d",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "74cbtlv3257d.kicad_sym",
    "74cbtlv3257d.kicad_mod",
    "74cbtlv3257d.glb",
    "74cbtlv3257d.step",
    "74cbtlv3257d.lbr",
    "docs/hero.png",
    "docs/74cbtlv3257d-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "74cbtlv3257d-hero.glb",
    "74cbtlv3257d-hero.overlay.json",
    "74cbtlv3257d-etched.glb"
  ],
  "component": {
    "mpn": "74CBTLV3257D",
    "manufacturer": "Nexperia",
    "package": "SO-16",
    "pin_count": 16,
    "category": "Logic",
    "subcategory": "Signal Switches, Multiplexers, Decoders",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588913902084370432",
    "parts": {
      "symbol": "74cbtlv3257d.kicad_sym",
      "footprint": "74cbtlv3257d.kicad_mod",
      "model_3d": "74cbtlv3257d-hero.glb",
      "model_3d_plain": "74cbtlv3257d-etched.glb",
      "model_3d_step": "74cbtlv3257d-etched.step",
      "model_3d_step_plain": "74cbtlv3257d.step",
      "lbr": "74cbtlv3257d.lbr"
    },
    "distributor_links": {
      "lcsc": "C546451"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T06:28:02Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "S",
        "type": "input",
        "description": "Select input that connects nA to nB1 when LOW and to nB2 when HIGH, with Schmitt-trigger action that tolerates slow input edges (rise/fall rate up to 200 ns/V)."
      },
      {
        "number": "2",
        "name": "1B1",
        "type": "bidirectional",
        "description": "Switch port 1B1 input/output, connected to 1A when S is LOW and OE is LOW."
      },
      {
        "number": "3",
        "name": "1B2",
        "type": "bidirectional",
        "description": "Switch port 1B2 input/output, connected to 1A when S is HIGH and OE is LOW."
      },
      {
        "number": "4",
        "name": "1A",
        "type": "bidirectional",
        "description": "Switch port 1A input/output, the common A terminal of switch 1; switch voltage must stay between 0 V and VCC when enabled or disabled."
      },
      {
        "number": "5",
        "name": "2B1",
        "type": "bidirectional",
        "description": "Switch port 2B1 input/output, connected to 2A when S is LOW and OE is LOW."
      },
      {
        "number": "6",
        "name": "2B2",
        "type": "bidirectional",
        "description": "Switch port 2B2 input/output, connected to 2A when S is HIGH and OE is LOW."
      },
      {
        "number": "7",
        "name": "2A",
        "type": "bidirectional",
        "description": "Switch port 2A input/output, the common A terminal of switch 2; switch voltage must stay between 0 V and VCC when enabled or disabled."
      },
      {
        "number": "8",
        "name": "GND",
        "type": "power_in",
        "description": "Ground (0 V) reference for all voltages on the device."
      },
      {
        "number": "9",
        "name": "3A",
        "type": "bidirectional",
        "description": "Switch port 3A input/output, the common A terminal of switch 3; switch voltage must stay between 0 V and VCC when enabled or disabled."
      },
      {
        "number": "10",
        "name": "3B2",
        "type": "bidirectional",
        "description": "Switch port 3B2 input/output, connected to 3A when S is HIGH and OE is LOW."
      },
      {
        "number": "11",
        "name": "3B1",
        "type": "bidirectional",
        "description": "Switch port 3B1 input/output, connected to 3A when S is LOW and OE is LOW."
      },
      {
        "number": "12",
        "name": "4A",
        "type": "bidirectional",
        "description": "Switch port 4A input/output, the common A terminal of switch 4; switch voltage must stay between 0 V and VCC when enabled or disabled."
      },
      {
        "number": "13",
        "name": "4B2",
        "type": "bidirectional",
        "description": "Switch port 4B2 input/output, connected to 4A when S is HIGH and OE is LOW."
      },
      {
        "number": "14",
        "name": "4B1",
        "type": "bidirectional",
        "description": "Switch port 4B1 input/output, connected to 4A when S is LOW and OE is LOW."
      },
      {
        "number": "15",
        "name": "OE",
        "type": "input",
        "description": "Active-LOW output enable; when HIGH all switches are high-impedance OFF regardless of S, and it should be tied to VCC through a pull-up resistor to hold the OFF state during power-up or power-down."
      },
      {
        "number": "16",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage, recommended operating range 2.3 V to 3.6 V (absolute maximum 4.6 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": [],
        "pages_sent": 21,
        "cost_usd": 0.096,
        "at": "2026-10-18T06:25:39"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588913902084370432",
        "pages": 21,
        "sha256": "7f71a4c9b6643bae",
        "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"
    },
    "models_3d": [
      {
        "file": "74cbtlv3257d.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          9.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "d5eeddb4c0b304dc61950919b126fc61d7586abd5f16ab71a2a79759ec6498bf",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "74cbtlv3257d-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "16ed61df4304333f6f8a14b8590ddca6d593ed57fcf2672fb89811574cbeaf2b",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}