MC74VHC4051DR2G

{
  "slug": "mc74vhc4051dr2g",
  "version": "0.1.0",
  "type": "component",
  "description": "onsemi Signal Switches, Multiplexers, Decoders, SOIC-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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  "component": {
    "mpn": "MC74VHC4051DR2G",
    "manufacturer": "onsemi",
    "package": "SOIC-16",
    "pin_count": 16,
    "category": "Logic",
    "subcategory": "Signal Switches, Multiplexers, Decoders",
    "datasheet": "https://www.onsemi.com/pdf/datasheet/mc74vhc4051-d.pdf",
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    "distributor_links": {
      "lcsc": "C904185",
      "digikey": "MC74VHC4051DR2GOSTR-ND",
      "mouser": "863-MC74VHC4051DR2G"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T05:49:09Z",
      "source": "Component Ocean /api/assign-pns",
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        "pn": "MC74VHC4051DR2GOSTR-ND",
        "status": "found"
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    "pins": [
      {
        "number": "1",
        "name": "X4",
        "type": "passive",
        "description": "Analog input/output channel X4 of the VHC4051; analog voltages may vary across the supply range from VEE to VCC, and unused channels may be left floating."
      },
      {
        "number": "2",
        "name": "X6",
        "type": "passive",
        "description": "Analog input/output channel X6; analog voltages may vary across the supply range from VEE to VCC, and unused channels may be left floating."
      },
      {
        "number": "3",
        "name": "X",
        "type": "passive",
        "description": "Common analog output/input of the multiplexer, connected to one of channels X0 to X7 selected by A, B and C when Enable is LOW."
      },
      {
        "number": "4",
        "name": "X7",
        "type": "passive",
        "description": "Analog input/output channel X7; analog voltages may vary across the supply range from VEE to VCC, and unused channels may be left floating."
      },
      {
        "number": "5",
        "name": "X5",
        "type": "passive",
        "description": "Analog input/output channel X5; analog voltages may vary across the supply range from VEE to VCC, and unused channels may be left floating."
      },
      {
        "number": "6",
        "name": "Enable",
        "type": "input",
        "description": "Active-high enable; when HIGH all analog switches are turned off, and the input is CMOS-compatible with a pull-up resistor needed for LSTTL outputs."
      },
      {
        "number": "7",
        "name": "VEE",
        "type": "power_in",
        "description": "Negative analog supply, 0 to −6 V relative to GND with VEE ≤ GND, giving a VCC − VEE range of 2 to 12 V."
      },
      {
        "number": "8",
        "name": "GND",
        "type": "power_in",
        "description": "Digital ground reference; VCC − GND must be 2 to 6 V and VEE − GND 0 to −6 V."
      },
      {
        "number": "9",
        "name": "C",
        "type": "input",
        "description": "Channel-select input C (most significant select bit) that must be driven at VCC or GND logic levels."
      },
      {
        "number": "10",
        "name": "B",
        "type": "input",
        "description": "Channel-select input B that must be driven at VCC or GND logic levels."
      },
      {
        "number": "11",
        "name": "A",
        "type": "input",
        "description": "Channel-select input A (least significant select bit) that must be driven at VCC or GND logic levels."
      },
      {
        "number": "12",
        "name": "X3",
        "type": "passive",
        "description": "Analog input/output channel X3; analog voltages may vary across the supply range from VEE to VCC, and unused channels may be left floating."
      },
      {
        "number": "13",
        "name": "X0",
        "type": "passive",
        "description": "Analog input/output channel X0; analog voltages may vary across the supply range from VEE to VCC, and unused channels may be left floating."
      },
      {
        "number": "14",
        "name": "X1",
        "type": "passive",
        "description": "Analog input/output channel X1; analog voltages may vary across the supply range from VEE to VCC, and unused channels may be left floating."
      },
      {
        "number": "15",
        "name": "X2",
        "type": "passive",
        "description": "Analog input/output channel X2; analog voltages may vary across the supply range from VEE to VCC, and unused channels may be left floating."
      },
      {
        "number": "16",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply, 2 to 6 V relative to GND for digital control and up to 12 V above VEE for the analog switches (VCC − VEE = 2 to 12 V)."
      }
    ],
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        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
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        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
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        ],
        "pages_sent": 19,
        "cost_usd": 0.1091,
        "at": "2026-10-18T05:48:19"
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      "datasheet": {
        "url": "https://www.onsemi.com/pdf/datasheet/mc74vhc4051-d.pdf",
        "pages": 19,
        "sha256": "4ae2350b8cf5f4c4",
        "source_tier": "mfr"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
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