SN74LVC1G139DCUT

{
  "slug": "sn74lvc1g139dcut",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Signal Switches, Multiplexers, Decoders, VSSOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic",
    "sn74lvc1g139dcut",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sn74lvc1g139dcut.kicad_sym",
    "sn74lvc1g139dcut.kicad_mod",
    "sn74lvc1g139dcut.glb",
    "sn74lvc1g139dcut.step",
    "sn74lvc1g139dcut.lbr",
    "docs/hero.png",
    "docs/sn74lvc1g139dcut-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sn74lvc1g139dcut-hero.glb",
    "sn74lvc1g139dcut-hero.overlay.json",
    "sn74lvc1g139dcut-etched.glb"
  ],
  "component": {
    "mpn": "SN74LVC1G139DCUT",
    "manufacturer": "Texas Instruments",
    "package": "VSSOP-8",
    "pin_count": 8,
    "category": "Logic",
    "subcategory": "Signal Switches, Multiplexers, Decoders",
    "datasheet": "https://www.ti.com/cn/lit/gpn/sn74lvc1g139",
    "parts": {
      "symbol": "sn74lvc1g139dcut.kicad_sym",
      "footprint": "sn74lvc1g139dcut.kicad_mod",
      "model_3d": "sn74lvc1g139dcut-hero.glb",
      "model_3d_plain": "sn74lvc1g139dcut-etched.glb",
      "model_3d_step": "sn74lvc1g139dcut-etched.step",
      "model_3d_step_plain": "sn74lvc1g139dcut.step",
      "lbr": "sn74lvc1g139dcut.lbr"
    },
    "distributor_links": {
      "lcsc": "C2860273",
      "digikey": "296-32297-2-ND",
      "mouser": "595-SN74LVC1G139DCUT"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T01:37:01Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-32297-2-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-SN74LVC1G139DCUT",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "A",
        "type": "input",
        "description": "Address input, bit 0 (least significant bit) of the 2-bit select code that chooses which active-low output goes low."
      },
      {
        "number": "2",
        "name": "B",
        "type": "input",
        "description": "Address input, bit 1 (most significant bit) of the 2-bit select code that chooses which active-low output goes low."
      },
      {
        "number": "3",
        "name": "Y3",
        "type": "output",
        "description": "Output 3, active low; goes low when B is high and A is high."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin."
      },
      {
        "number": "5",
        "name": "Y2",
        "type": "output",
        "description": "Output 2, active low; goes low when B is high and A is low."
      },
      {
        "number": "6",
        "name": "Y1",
        "type": "output",
        "description": "Output 1, active low; goes low when B is low and A is high."
      },
      {
        "number": "7",
        "name": "Y0",
        "type": "output",
        "description": "Output 0, active low; goes low when B is low and A is low."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply pin; operating range is 1.65 V to 5.5 V per the Recommended Operating Conditions."
      }
    ],
    "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 pin table lists DCT (SM8) and DCU (VSSOP) under the same pin numbers, so the DCU assignment is t"
        ],
        "pages_sent": 27,
        "cost_usd": 0.0879,
        "at": "2026-10-19T01:36:45"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/sn74lvc1g139",
        "pages": 27,
        "sha256": "9af92f6501b7e275",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
    },
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.1,
          2.0,
          0.85
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "353552981eef35cb93635057d4aeb89aef22648c77af6fd095e328bfe6b834bd",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
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        "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": "123cfc629b8f300bc61dc520c4ba1ca2756a78b0a393c8a22a02c7d429fb1843",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}