74CBTLV3257PW

{
  "slug": "74cbtlv3257pw",
  "version": "0.1.0",
  "type": "component",
  "description": "Nexperia Signal Switches, Multiplexers, Decoders, TSSOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic",
    "74cbtlv3257pw",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "74cbtlv3257pw.kicad_sym",
    "74cbtlv3257pw.kicad_mod",
    "74cbtlv3257pw.glb",
    "74cbtlv3257pw.step",
    "74cbtlv3257pw.lbr",
    "docs/hero.png",
    "docs/74cbtlv3257pw-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "74cbtlv3257pw-hero.glb",
    "74cbtlv3257pw-hero.overlay.json"
  ],
  "component": {
    "mpn": "74CBTLV3257PW",
    "manufacturer": "Nexperia",
    "package": "TSSOP-16",
    "pin_count": 16,
    "category": "Logic",
    "subcategory": "Signal Switches, Multiplexers, Decoders",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588908420707045376",
    "parts": {
      "symbol": "74cbtlv3257pw.kicad_sym",
      "footprint": "74cbtlv3257pw.kicad_mod",
      "model_3d": "74cbtlv3257pw-hero.glb",
      "model_3d_plain": "74cbtlv3257pw.glb",
      "model_3d_step": "74cbtlv3257pw-etched.step",
      "model_3d_step_plain": "74cbtlv3257pw.step",
      "lbr": "74cbtlv3257pw.lbr"
    },
    "distributor_links": {
      "lcsc": "C546455"
    },
    "distributor_check": {
      "checked_at": "2026-10-10T00:59:50Z",
      "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 chooses the B port for each switch when OE is LOW: S = L connects nA to nB1, S = H connects nA to nB2."
      },
      {
        "number": "2",
        "name": "1B1",
        "type": "bidirectional",
        "description": "B1 input/output of switch 1; connected to 1A when OE is LOW and S is LOW, and disconnected when OE is HIGH."
      },
      {
        "number": "3",
        "name": "1B2",
        "type": "bidirectional",
        "description": "B2 input/output of switch 1; connected to 1A when OE is LOW and S is HIGH, and disconnected when OE is HIGH."
      },
      {
        "number": "4",
        "name": "1A",
        "type": "bidirectional",
        "description": "A input/output of switch 1; common port that follows 1B1 or 1B2 selected by S when OE is LOW, and goes high-impedance when OE is HIGH."
      },
      {
        "number": "5",
        "name": "2B1",
        "type": "bidirectional",
        "description": "B1 input/output of switch 2; connected to 2A when OE is LOW and S is LOW, and disconnected when OE is HIGH."
      },
      {
        "number": "6",
        "name": "2B2",
        "type": "bidirectional",
        "description": "B2 input/output of switch 2; connected to 2A when OE is LOW and S is HIGH, and disconnected when OE is HIGH."
      },
      {
        "number": "7",
        "name": "2A",
        "type": "bidirectional",
        "description": "A input/output of switch 2; common port that follows 2B1 or 2B2 selected by S when OE is LOW, and goes high-impedance when OE is HIGH."
      },
      {
        "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": "A input/output of switch 3; common port that follows 3B1 or 3B2 selected by S when OE is LOW, and goes high-impedance when OE is HIGH."
      },
      {
        "number": "10",
        "name": "3B2",
        "type": "bidirectional",
        "description": "B2 input/output of switch 3; connected to 3A when OE is LOW and S is HIGH, and disconnected when OE is HIGH."
      },
      {
        "number": "11",
        "name": "3B1",
        "type": "bidirectional",
        "description": "B1 input/output of switch 3; connected to 3A when OE is LOW and S is LOW, and disconnected when OE is HIGH."
      },
      {
        "number": "12",
        "name": "4A",
        "type": "bidirectional",
        "description": "A input/output of switch 4; common port that follows 4B1 or 4B2 selected by S when OE is LOW, and goes high-impedance when OE is HIGH."
      },
      {
        "number": "13",
        "name": "4B2",
        "type": "bidirectional",
        "description": "B2 input/output of switch 4; connected to 4A when OE is LOW and S is HIGH, and disconnected when OE is HIGH."
      },
      {
        "number": "14",
        "name": "4B1",
        "type": "bidirectional",
        "description": "B1 input/output of switch 4; connected to 4A when OE is LOW and S is LOW, and disconnected when OE is HIGH."
      },
      {
        "number": "15",
        "name": "OE",
        "type": "input",
        "description": "Output enable input (active LOW); LOW enables the switch selected by S, and HIGH puts all switches in the high-impedance OFF-state, so OE should be tied to VCC through a pull-up resistor during power-up or power-down."
      },
      {
        "number": "16",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage; recommended operating range is 2.3 V to 3.6 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": [
          "extractor flagged: The datasheet has no explicit per-pin diagram label for the TSSOP16 beyond the two-column pinning dr; Table 3 groups the B1, B2 and A pins by function (e.g. '1B1 to 4B1' on pins 2, 5, 11, 14). Each pin ; Datasheet specifies the 74CBTLV3257PW as TSSOP16 SOT403-1 (page 2). Only the TSSOP16 pinning was ext"
        ],
        "pages_sent": 21,
        "cost_usd": 0.0962,
        "at": "2026-10-10T00:57:44"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588908420707045376",
        "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": [
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        "file": "74cbtlv3257pw.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": "2026-10-10",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "74cbtlv3257pw-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": "c76e430fd2724c1b9210273117130b6e5ab89d48aba3061beb18cfdc572e6999",
        "checked": "2026-10-10",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}