MC74VHC4066DR2G

{
  "slug": "mc74vhc4066dr2g",
  "version": "0.1.0",
  "type": "component",
  "description": "onsemi Analog Switches, Multiplexers, SOIC-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
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    "interface",
    "mc74vhc4066dr2g",
    "factory-2.0.0",
    "extractor-text"
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  "dependencies": {},
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    "mc74vhc4066dr2g.step",
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  "component": {
    "mpn": "MC74VHC4066DR2G",
    "manufacturer": "onsemi",
    "package": "SOIC-14",
    "pin_count": 14,
    "category": "Interface",
    "subcategory": "Analog Switches, Multiplexers",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588929095182782464",
    "parts": {
      "symbol": "mc74vhc4066dr2g.kicad_sym",
      "footprint": "mc74vhc4066dr2g.kicad_mod",
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      "lbr": "mc74vhc4066dr2g.lbr"
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    "distributor_links": {
      "lcsc": "C904190"
    },
    "distributor_check": {
      "checked_at": "2026-10-17T21:44:30Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "XA",
        "type": "bidirectional",
        "description": "Analog input/output of switch A; for proper operation Vin and Vout should be constrained to the range GND to VCC."
      },
      {
        "number": "2",
        "name": "YA",
        "type": "bidirectional",
        "description": "Analog output/input of switch A; for proper operation Vin and Vout should be constrained to the range GND to VCC."
      },
      {
        "number": "3",
        "name": "YB",
        "type": "bidirectional",
        "description": "Analog output/input of switch B; for proper operation Vin and Vout should be constrained to the range GND to VCC."
      },
      {
        "number": "4",
        "name": "XB",
        "type": "bidirectional",
        "description": "Analog input/output of switch B; for proper operation Vin and Vout should be constrained to the range GND to VCC."
      },
      {
        "number": "5",
        "name": "B ON/OFF CONTROL",
        "type": "input",
        "description": "Digital control for switch B: high (VCC) turns the switch on and low (GND) turns it off; it should be driven at VCC or GND logic levels."
      },
      {
        "number": "6",
        "name": "C ON/OFF CONTROL",
        "type": "input",
        "description": "Digital control for switch C: high (VCC) turns the switch on and low (GND) turns it off; it should be driven at VCC or GND logic levels."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference; all analog and digital voltages are referenced to GND."
      },
      {
        "number": "8",
        "name": "XC",
        "type": "bidirectional",
        "description": "Analog input/output of switch C; for proper operation Vin and Vout should be constrained to the range GND to VCC."
      },
      {
        "number": "9",
        "name": "YC",
        "type": "bidirectional",
        "description": "Analog output/input of switch C; for proper operation Vin and Vout should be constrained to the range GND to VCC."
      },
      {
        "number": "10",
        "name": "YD",
        "type": "bidirectional",
        "description": "Analog output/input of switch D; for proper operation Vin and Vout should be constrained to the range GND to VCC."
      },
      {
        "number": "11",
        "name": "XD",
        "type": "bidirectional",
        "description": "Analog input/output of switch D; for proper operation Vin and Vout should be constrained to the range GND to VCC."
      },
      {
        "number": "12",
        "name": "D ON/OFF CONTROL",
        "type": "input",
        "description": "Digital control for switch D: high (VCC) turns the switch on and low (GND) turns it off; it should be driven at VCC or GND logic levels."
      },
      {
        "number": "13",
        "name": "A ON/OFF CONTROL",
        "type": "input",
        "description": "Digital control for switch A: high (VCC) turns the switch on and low (GND) turns it off; it should be driven at VCC or GND logic levels."
      },
      {
        "number": "14",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive DC supply, 2.0 V to 12.0 V referenced to GND (absolute maximum −0.5 V to +14.0 V)."
      }
    ],
    "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 page 1 pin-assignment figure and page 2 logic diagram are garbled in the text extraction (pin nu; The datasheet does not explicitly label which analog terminal is the X (common) versus Y (switch) si"
        ],
        "pages_sent": 15,
        "cost_usd": 0.1293,
        "at": "2026-10-17T21:42:37"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588929095182782464",
        "pages": 15,
        "sha256": "1f9978ff69042709",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 14,
        "described": 14,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
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        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
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}