TC74HC4066AFT

{
  "schema_version": 1,
  "type": "component",
  "slug": "tc74hc4066aft",
  "title": "TC74HC4066AFT",
  "brief": "TOSHIBA Analog Switches, Multiplexers, TSSOP-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "interface",
    "tc74hc4066aft",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "TC74HC4066AFT",
    "manufacturer": "TOSHIBA",
    "package": "TSSOP-14",
    "pin_count": 14,
    "category": "Interface",
    "subcategory": "Analog Switches, Multiplexers",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603063382669352960",
    "parts": {
      "symbol": "tc74hc4066aft.kicad_sym",
      "footprint": "tc74hc4066aft.kicad_mod",
      "model_3d": "tc74hc4066aft-hero.glb",
      "model_3d_plain": "tc74hc4066aft-etched.glb",
      "model_3d_step": "tc74hc4066aft-etched.step",
      "model_3d_step_plain": "tc74hc4066aft.step",
      "lbr": "tc74hc4066aft.lbr"
    },
    "distributor_links": {
      "lcsc": "C5346748",
      "mouser": "757-TC74HC4066AFT"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T07:07:00Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": "757-TC74HC4066AFT",
        "status": "found",
        "lifecycle": "Obsolete"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "1I/O",
        "type": "bidirectional",
        "description": "Switch 1 bidirectional signal terminal, 0 to VCC, switch through current max ±25 mA."
      },
      {
        "number": "2",
        "name": "1O/I",
        "type": "bidirectional",
        "description": "Switch 1 bidirectional signal terminal on the opposite side, 0 to VCC, switch through current max ±25 mA."
      },
      {
        "number": "3",
        "name": "2O/I",
        "type": "bidirectional",
        "description": "Switch 2 bidirectional signal terminal, 0 to VCC, switch through current max ±25 mA."
      },
      {
        "number": "4",
        "name": "2I/O",
        "type": "bidirectional",
        "description": "Switch 2 bidirectional signal terminal on the opposite side, 0 to VCC, switch through current max ±25 mA."
      },
      {
        "number": "5",
        "name": "2C",
        "type": "input",
        "description": "Control input for switch 2; switch is ON when high and OFF when low, must not float (tie to VCC or GND if unused)."
      },
      {
        "number": "6",
        "name": "3C",
        "type": "input",
        "description": "Control input for switch 3; switch is ON when high and OFF when low, must not float (tie to VCC or GND if unused)."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Ground (VSS), 0 V reference."
      },
      {
        "number": "8",
        "name": "3I/O",
        "type": "bidirectional",
        "description": "Switch 3 bidirectional signal terminal, 0 to VCC, switch through current max ±25 mA."
      },
      {
        "number": "9",
        "name": "3O/I",
        "type": "bidirectional",
        "description": "Switch 3 bidirectional signal terminal on the opposite side, 0 to VCC, switch through current max ±25 mA."
      },
      {
        "number": "10",
        "name": "4O/I",
        "type": "bidirectional",
        "description": "Switch 4 bidirectional signal terminal, 0 to VCC, switch through current max ±25 mA."
      },
      {
        "number": "11",
        "name": "4I/O",
        "type": "bidirectional",
        "description": "Switch 4 bidirectional signal terminal on the opposite side, 0 to VCC, switch through current max ±25 mA."
      },
      {
        "number": "12",
        "name": "4C",
        "type": "input",
        "description": "Control input for switch 4; switch is ON when high and OFF when low, must not float (tie to VCC or GND if unused)."
      },
      {
        "number": "13",
        "name": "1C",
        "type": "input",
        "description": "Control input for switch 1; switch is ON when high and OFF when low, must not float (tie to VCC or GND if unused)."
      },
      {
        "number": "14",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply voltage, operating range 2 to 12 V (absolute max 13 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: Pin numbers and names were recovered from the page 2 pin assignment, which is a flattened text extra; The datasheet gives one pin assignment for the whole family and does not print a separate TSSOP-14 p; Switch terminal types are set to passive because the datasheet describes them as bidirectional analo"
        ],
        "pages_sent": 12,
        "cost_usd": 0.0535,
        "at": "2026-10-18T07:04:29"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603063382669352960",
        "pages": 12,
        "sha256": "fc69493de36746d4",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 14,
        "described": 14,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "tc74hc4066aft.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          5,
          1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "3ee5786aae56190997aa793ba3cfc003fd616782770e29719b4562f012982245",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tc74hc4066aft-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          5,
          1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "eac74e5d8961d78a335fbbcb5e8dc7404bcadcd4355a8efc1ad819a87e27cc12",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "TOSHIBA",
      "Package": "TSSOP-14",
      "Category": "Interface",
      "Pins": "14"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "fc69493de36746d4eac51c32a2cd142f5ed015d9cf540602741207b3db9bfda0",
      "rows": [
        {
          "name": "Supply voltage range",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 13,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Control input voltage",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": null,
          "conditions": "upper limit printed as VCC + 0.5 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Switch I/O voltage",
          "symbol": "VI/O",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": null,
          "conditions": "upper limit printed as VCC + 0.5 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Control input diode current",
          "symbol": "IIK",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -20,
          "typ": null,
          "max": 20,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "I/O diode current",
          "symbol": "II/OK",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -20,
          "typ": null,
          "max": 20,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Switch through current",
          "symbol": "IT",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -25,
          "typ": null,
          "max": 25,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "DC VCC/ground current",
          "symbol": "ICC",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -50,
          "typ": null,
          "max": 50,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Power dissipation",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 180,
          "conditions": "SOP/TSSOP package (DIP is 500 mW, Note 1)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage",
          "symbol": "VCC",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": 12,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Control input voltage",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": null,
          "conditions": "upper limit printed as VCC",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Switch I/O voltage",
          "symbol": "VI/O",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": null,
          "conditions": "upper limit printed as VCC",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature",
          "symbol": "Topr",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input rise and fall time",
          "symbol": "tr, tf",
          "kind": "recommended_operating",
          "unit": "ns",
          "min": 0,
          "typ": null,
          "max": 1000,
          "conditions": "VCC = 2.0 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input rise and fall time",
          "symbol": "tr, tf",
          "kind": "recommended_operating",
          "unit": "ns",
          "min": 0,
          "typ": null,
          "max": 500,
          "conditions": "VCC = 4.5 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input rise and fall time",
          "symbol": "tr, tf",
          "kind": "recommended_operating",
          "unit": "ns",
          "min": 0,
          "typ": null,
          "max": 400,
          "conditions": "VCC = 6.0 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input rise and fall time",
          "symbol": "tr, tf",
          "kind": "recommended_operating",
          "unit": "ns",
          "min": 0,
          "typ": null,
          "max": 250,
          "conditions": "VCC = 10.0 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "High-level control input voltage",
          "symbol": "VIHC",
          "kind": "electrical",
          "unit": "V",
          "min": 1.5,
          "typ": null,
          "max": null,
          "conditions": "VCC = 2.0 V; Ta = -40 to 85°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "High-level control input voltage",
          "symbol": "VIHC",
          "kind": "electrical",
          "unit": "V",
          "min": 3.15,
          "typ": null,
          "max": null,
          "conditions": "VCC = 4.5 V; Ta = -40 to 85°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "High-level control input voltage",
          "symbol": "VIHC",
          "kind": "electrical",
          "unit": "V",
          "min": 6.3,
          "typ": null,
          "max": null,
          "conditions": "VCC = 9.0 V; Ta = -40 to 85°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "High-level control input voltage",
          "symbol": "VIHC",
          "kind": "electrical",
          "unit": "V",
          "min": 8.4,
          "typ": null,
          "max": null,
          "conditions": "VCC = 12.0 V; Ta = -40 to 85°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Low-level control input voltage",
          "symbol": "VILC",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.5,
          "conditions": "VCC = 2.0 V; Ta = -40 to 85°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Low-level control input voltage",
          "symbol": "VILC",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1.35,
          "conditions": "VCC = 4.5 V; Ta = -40 to 85°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Low-level control input voltage",
          "symbol": "VILC",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 2.7,
          "conditions": "VCC = 9.0 V; Ta = -40 to 85°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Low-level control input voltage",
          "symbol": "VILC",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 3.6,
          "conditions": "VCC = 12.0 V; Ta = -40 to 85°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "ON resistance",
          "symbol": "RON",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": null,
          "max": 200,
          "conditions": "VIN = VIHC; VI/O = VCC to GND; II/O ≤ 1 mA; VCC = 4.5 V; Ta = -40 to 85°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "ON resistance",
          "symbol": "RON",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "VIN = VIHC; VI/O = VCC to GND; II/O ≤ 1 mA; VCC = 9.0 V; Ta = -40 to 85°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "ON resistance",
          "symbol": "RON",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": null,
          "max": 90,
          "conditions": "VIN = VIHC; VI/O = VCC to GND; II/O ≤ 1 mA; VCC = 12.0 V; Ta = -40 to 85°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "ON resistance",
          "symbol": "RON",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": null,
          "max": 130,
          "conditions": "VIN = VIHC; VI/O = VCC or GND; II/O ≤ 1 mA; VCC = 4.5 V; Ta = -40 to 85°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "ON resistance",
          "symbol": "RON",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": null,
          "max": 95,
          "conditions": "VIN = VIHC; VI/O = VCC or GND; II/O ≤ 1 mA; VCC = 9.0 V; Ta = -40 to 85°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input/output leakage current (switch off)",
          "symbol": "IOFF",
          "kind": "electrical",
          "unit": "nA",
          "min": -1000,
          "typ": null,
          "max": 1000,
          "conditions": "VOS = VCC or GND; VIS = GND or VCC; VIN = VILC; VCC = 12.0 V; Ta = -40 to 85°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Switch input leakage current (switch on, output open)",
          "symbol": "IIZ",
          "kind": "electrical",
          "unit": "nA",
          "min": -1000,
          "typ": null,
          "max": 1000,
          "conditions": "VOS = VCC or GND; VIN = VIHC; VCC = 12.0 V; Ta = -40 to 85°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Control input current",
          "symbol": "IIN",
          "kind": "electrical",
          "unit": "nA",
          "min": -1000,
          "typ": null,
          "max": 1000,
          "conditions": "VIN = VCC or GND; VCC = 12.0 V; Ta = -40 to 85°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Quiescent supply current",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "VIN = VCC or GND; VCC = 6.0 V; Ta = -40 to 85°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Quiescent supply current",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 40,
          "conditions": "VIN = VCC or GND; VCC = 9.0 V; Ta = -40 to 85°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Quiescent supply current",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 80,
          "conditions": "VIN = VCC or GND; VCC = 12.0 V; Ta = -40 to 85°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Phase difference between input and output",
          "symbol": "φI-O",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 65,
          "conditions": "CL = 50 pF, tr = tf = 6 ns; VCC = 2.0 V; Ta = -40 to 85°C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Phase difference between input and output",
          "symbol": "φI-O",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 13,
          "conditions": "CL = 50 pF, tr = tf = 6 ns; VCC = 4.5 V; Ta = -40 to 85°C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Phase difference between input and output",
          "symbol": "φI-O",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "CL = 50 pF, tr = tf = 6 ns; VCC = 9.0 V; Ta = -40 to 85°C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Phase difference between input and output",
          "symbol": "φI-O",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 9,
          "conditions": "CL = 50 pF, tr = tf = 6 ns; VCC = 12.0 V; Ta = -40 to 85°C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output enable time",
          "symbol": "tpZL, tpZH",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 125,
          "conditions": "RL = 1 kΩ, CL = 50 pF; VCC = 2.0 V; Ta = -40 to 85°C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output enable time",
          "symbol": "tpZL, tpZH",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 25,
          "conditions": "RL = 1 kΩ, CL = 50 pF; VCC = 4.5 V; Ta = -40 to 85°C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output enable time",
          "symbol": "tpZL, tpZH",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 22,
          "conditions": "RL = 1 kΩ, CL = 50 pF; VCC = 9.0 V; Ta = -40 to 85°C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output enable time",
          "symbol": "tpZL, tpZH",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 18,
          "conditions": "RL = 1 kΩ, CL = 50 pF; VCC = 12.0 V; Ta = -40 to 85°C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output disable time",
          "symbol": "tpLZ, tpHZ",
          "kind": "timing",
          "unit": "ns",
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