SN74LVC1G139DCUR

{
  "schema_version": 1,
  "type": "component",
  "slug": "sn74lvc1g139dcur",
  "title": "SN74LVC1G139DCUR",
  "brief": "Texas Instruments Signal Switches / Encoders & Decoders / Multiplexers, VSSOP-8-0.5mm. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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  "component": {
    "mpn": "SN74LVC1G139DCUR",
    "manufacturer": "Texas Instruments",
    "package": "VSSOP-8-0.5mm",
    "pin_count": 8,
    "category": "Logic",
    "subcategory": "Signal Switches / Encoders & Decoders / Multiplexers",
    "datasheet": "https://www.ti.com/lit/ds/symlink/sn74lvc1g139dcur.pdf",
    "parts": {
      "symbol": "sn74lvc1g139dcur.kicad_sym",
      "footprint": "sn74lvc1g139dcur.kicad_mod",
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      "model_3d_plain": "sn74lvc1g139dcur.glb",
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      "lbr": "sn74lvc1g139dcur.lbr"
    },
    "distributor_links": {
      "digikey": "296-18203-2-ND",
      "lcsc": "C153798"
    },
    "pins": [
      {
        "number": "1",
        "name": "A",
        "type": "input",
        "description": "Address input, bit 0. CMOS-level select input; VIH from 0.65*VCC (at 1.65-1.95 V) up to 2 V (at 3-3.6 V). Input voltage tolerant to 5.5 V regardless of VCC."
      },
      {
        "number": "2",
        "name": "B",
        "type": "input",
        "description": "Address input, bit 1. CMOS-level select input; VIH from 0.65*VCC (at 1.65-1.95 V) up to 2 V (at 3-3.6 V). Input voltage tolerant to 5.5 V regardless of VCC."
      },
      {
        "number": "3",
        "name": "Y3",
        "type": "output",
        "description": "Decoder output 3; asserted low when B is high and A is high. Push-pull CMOS output rated for ±24 mA drive at 3.3 V."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference (0 V)."
      },
      {
        "number": "5",
        "name": "Y2",
        "type": "output",
        "description": "Decoder output 2; asserted low when B is high and A is low. Push-pull CMOS output rated for ±24 mA drive at 3.3 V."
      },
      {
        "number": "6",
        "name": "Y1",
        "type": "output",
        "description": "Decoder output 1; asserted low when B is low and A is high. Push-pull CMOS output rated for ±24 mA drive at 3.3 V."
      },
      {
        "number": "7",
        "name": "Y0",
        "type": "output",
        "description": "Decoder output 0; asserted low when B is low and A is low. Push-pull CMOS output rated for ±24 mA drive at 3.3 V."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage. Operating range 1.65 V to 5.5 V; data retention down to 1.5 V. Decouple with a 0.1 µF ceramic to GND."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/sn74lvc1g139dcur.pdf",
        "pages": 25,
        "sha256": "e27e598d1d356ab2",
        "source_tier": "mfr"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -1.4,
        -0.75
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "VSSOP-8_2.3x2mm_P0.5mm@sha256:dca72da69de3263a",
      "mark": "drawn"
    },
    "logic": {
      "family_id": "74LVC1G139",
      "logic_family": "74LVC",
      "function_code": "1G139",
      "function_class": "Decoder",
      "function_name": "1-gate variant of Dual 2-to-4 Line Decoder/Demultiplexer (139)",
      "manufacturer": "Texas Instruments",
      "is_specialty": false
    },
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        "seat": "z = 0",
        "extents_mm": [
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          2,
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "353552981eef35cb93635057d4aeb89aef22648c77af6fd095e328bfe6b834bd",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sn74lvc1g139dcur-etched.step",
        "role": "eda",
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "e78dec3d56668eec304da645204a1cdf8799269aeeb99498d0134de169b23896",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "VSSOP-8-0.5mm",
      "Category": "Logic",
      "Pins": "8"
    }
  },
  "sections": [
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  "discovery_triggers": [
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  "discovery_pitch": "SN74LVC1G139DCUR (Texas Instruments) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
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  "files": [
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  "visibility": {
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  "variants": [
    {
      "mpn": "SN74LVC1G139DCUR",
      "kind": "packaging"
    },
    {
      "mpn": "SN74LVC1G139DCURDCT",
      "kind": "packaging"
    },
    {
      "mpn": "SN74LVC1G139DCURDCTR",
      "kind": "packaging"
    },
    {
      "mpn": "SN74LVC1G139DCURYZP",
      "kind": "packaging"
    },
    {
      "mpn": "SN74LVC1G139DCURYZPR",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-25T07:33:42.090Z"
}