U74LVC1G157G

{
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  "type": "component",
  "slug": "u74lvc1g157g",
  "title": "U74LVC1G157G",
  "brief": "UTC Unisonic Tech Analog Switches, Multiplexers, SOT-363. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
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  "component": {
    "mpn": "U74LVC1G157G",
    "manufacturer": "UTC Unisonic Tech",
    "package": "SOT-363",
    "pin_count": 6,
    "category": "Interface",
    "subcategory": "Analog Switches, Multiplexers",
    "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2308251125_UTC-Unisonic-Tech-U74LVC1G157G_C7509610.pdf",
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      "model_3d_step": "u74lvc1g157g-etched.step",
      "model_3d_step_plain": "u74lvc1g157g.step",
      "lbr": "u74lvc1g157g.lbr"
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    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "I1",
        "type": "input",
        "description": "Data input 1. Routed to output Y when select S=H. CMOS logic input, VIH/VIL scale with VCC (1.65V-5.5V)."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference (0V)."
      },
      {
        "number": "3",
        "name": "I0",
        "type": "input",
        "description": "Data input 0. Routed to output Y when select S=L. CMOS logic input, VIH/VIL scale with VCC (1.65V-5.5V)."
      },
      {
        "number": "4",
        "name": "Y",
        "type": "output",
        "description": "Multiplexer output. Drives ±24mA at VCC=3.0V (up to ±32mA at VCC=4.5V). Output = I0 when S=L, output = I1 when S=H."
      },
      {
        "number": "5",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply voltage, 1.65V to 5.5V (operating). Absolute max -0.5V to +6.5V. Quiescent current ICC ≤ 10μA."
      },
      {
        "number": "6",
        "name": "S",
        "type": "input",
        "description": "Data select input. S=L selects I0 to output Y; S=H selects I1 to output Y. CMOS logic input."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2308251125_UTC-Unisonic-Tech-U74LVC1G157G_C7509610.pdf",
        "pages": 5,
        "sha256": "0b32c07d4d4a1f4a",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 6,
        "described": 6,
        "cites_pages": true,
        "refuses_to_fabricate": true
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    "logic": {
      "family_id": "74LVC1G157",
      "logic_family": "74LVC",
      "function_code": "1G157",
      "function_class": "Multiplexer",
      "function_name": "1-gate variant of Quad 2-to-1 Multiplexer (157)",
      "manufacturer": "UTC (Unisonic Tech)",
      "is_specialty": false
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "UTC Unisonic Tech",
      "Package": "SOT-363",
      "Category": "Interface",
      "Pins": "6"
    }
  },
  "variants": [
    {
      "mpn": "U74LVC1G157GAG6",
      "kind": "packaging"
    },
    {
      "mpn": "U74LVC1G157GAL6",
      "kind": "packaging"
    }
  ],
  "sections": [
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  "discovery_triggers": [
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  "discovery_pitch": "U74LVC1G157G (UTC Unisonic Tech) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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  "visibility": {
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  "updated_at": "2026-09-25T13:24:40.364Z"
}