SN74LVC1G3157DC

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  "type": "component",
  "slug": "sn74lvc1g3157dc",
  "title": "SN74LVC1G3157DC",
  "brief": "lingxingic SN74LVC1G3157DC LX Analog Switches, Multiplexers, SOT-363. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
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    "mpn": "SN74LVC1G3157DC",
    "manufacturer": "lingxingic SN74LVC1G3157DC LX",
    "package": "SOT-363",
    "pin_count": 6,
    "category": "Interface",
    "subcategory": "Analog Switches, Multiplexers",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/697796daf062bbaa2b6dc700bbe39147.pdf",
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    "pins": [
      {
        "number": "1",
        "name": "Y1",
        "type": "bidirectional",
        "description": "Independent analog I/O 1. Connected to the common Z pin through the analog switch when S = H. Signal range 0 V to VCC; RON ≈ 6.5 Ω @ VCC=3.3 V."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference (0 V). Common return for supply and analog signals."
      },
      {
        "number": "3",
        "name": "Y0",
        "type": "bidirectional",
        "description": "Independent analog I/O 0. Connected to the common Z pin through the analog switch when S = L. Signal range 0 V to VCC; RON ≈ 6.5 Ω @ VCC=3.3 V."
      },
      {
        "number": "4",
        "name": "Z",
        "type": "bidirectional",
        "description": "Common analog I/O. Routed to either Y0 (S=L) or Y1 (S=H) through the analog switch; supports bidirectional analog or digital signals from 0 V to VCC and up to 32 mA switch current."
      },
      {
        "number": "5",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply. Recommended operating range 1.65 V to 5.5 V (absolute max 6.5 V). Decouple to GND with a 0.1 µF ceramic capacitor placed close to the pin."
      },
      {
        "number": "6",
        "name": "S",
        "type": "input",
        "description": "Digital select input with Schmitt-trigger action. S=L connects Z↔Y0; S=H connects Z↔Y1. TTL-compatible at 3.3 V; input tolerates up to 5.5 V regardless of VCC."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/697796daf062bbaa2b6dc700bbe39147.pdf",
        "pages": 23,
        "sha256": "e159eb3e0aeb7721",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 6,
        "described": 6,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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    "pin1": {
      "pad": "1",
      "at": [
        -0.8375,
        -0.65
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOT-363_SC-70-6@sha256:0659d885e00b7869",
      "mark": "drawn"
    },
    "logic": {
      "family_id": "74LVC1G3157",
      "logic_family": "74LVC",
      "function_code": "1G3157",
      "function_class": "AnalogSwitch",
      "function_name": "1-gate variant of Single SPDT Analog Switch (2:1 Mux/Demux) (3157)",
      "manufacturer": "Texas Instruments",
      "is_specialty": false
    },
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        "seat": "z = 0",
        "extents_mm": [
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          2,
          1.1
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "045cc95e18ee7a13d1623c3ce6604fc833049bdb4f952f68c26e3c5767d122e4",
        "checked": "2026-10-07",
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        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "lingxingic",
      "Package": "SOT-363",
      "Category": "Interface",
      "Pins": "6"
    }
  },
  "sections": [
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    "info"
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  "discovery_triggers": [
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  "discovery_pitch": "SN74LVC1G3157DC (lingxingic SN74LVC1G3157DC LX) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
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  "files": [
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  "variants": [
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      "mpn": "SN74LVC1G3157DC",
      "kind": "packaging"
    },
    {
      "mpn": "SN74LVC1G3157DCDB",
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    {
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      "kind": "packaging"
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  ],
  "updated_at": "2026-09-25T07:35:56.795Z"
}