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Ray Set visibility: public f28015d 6d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "74vhct541aft",
  "title": "74VHCT541AFT",
  "brief": "TOSHIBA Specialty Logic, TSSOP-20. 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",
    "logic",
    "74vhct541aft",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "74VHCT541AFT",
    "manufacturer": "TOSHIBA",
    "package": "TSSOP-20",
    "pin_count": 20,
    "category": "Logic",
    "subcategory": "Specialty Logic",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603178558391005184",
    "parts": {
      "symbol": "74vhct541aft.kicad_sym",
      "footprint": "74vhct541aft.kicad_mod",
      "model_3d": "74vhct541aft-hero.glb",
      "model_3d_plain": "74vhct541aft-etched.glb",
      "model_3d_step": "74vhct541aft-etched.step",
      "model_3d_step_plain": "74vhct541aft.step",
      "lbr": "74vhct541aft.lbr"
    },
    "distributor_links": {
      "lcsc": "C6423716",
      "digikey": "74VHCT541AFTTR-ND",
      "mouser": "757-74VHCT541AFT"
    },
    "distributor_check": {
      "checked_at": "2026-10-17T09:25:06Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "74VHCT541AFTTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "757-74VHCT541AFT",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "G1",
        "type": "input",
        "description": "Active-low output enable input 1; when G1 or G2 is high the Y outputs are in the high-impedance state."
      },
      {
        "number": "2",
        "name": "A1",
        "type": "input",
        "description": "Data input 1, TTL-compatible (VIH 2.0 V min, VIL 0.8 V max), accepts 0 to 5.5 V."
      },
      {
        "number": "3",
        "name": "A2",
        "type": "input",
        "description": "Data input 2, TTL-compatible (VIH 2.0 V min, VIL 0.8 V max), accepts 0 to 5.5 V."
      },
      {
        "number": "4",
        "name": "A3",
        "type": "input",
        "description": "Data input 3, TTL-compatible (VIH 2.0 V min, VIL 0.8 V max), accepts 0 to 5.5 V."
      },
      {
        "number": "5",
        "name": "A4",
        "type": "input",
        "description": "Data input 4, TTL-compatible (VIH 2.0 V min, VIL 0.8 V max), accepts 0 to 5.5 V."
      },
      {
        "number": "6",
        "name": "A5",
        "type": "input",
        "description": "Data input 5, TTL-compatible (VIH 2.0 V min, VIL 0.8 V max), accepts 0 to 5.5 V."
      },
      {
        "number": "7",
        "name": "A6",
        "type": "input",
        "description": "Data input 6, TTL-compatible (VIH 2.0 V min, VIL 0.8 V max), accepts 0 to 5.5 V."
      },
      {
        "number": "8",
        "name": "A7",
        "type": "input",
        "description": "Data input 7, TTL-compatible (VIH 2.0 V min, VIL 0.8 V max), accepts 0 to 5.5 V."
      },
      {
        "number": "9",
        "name": "A8",
        "type": "input",
        "description": "Data input 8, TTL-compatible (VIH 2.0 V min, VIL 0.8 V max), accepts 0 to 5.5 V."
      },
      {
        "number": "10",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin (0 V reference)."
      },
      {
        "number": "11",
        "name": "Y8",
        "type": "tri_state",
        "description": "Non-inverted 3-state output 8; high-impedance when G1 or G2 is high, IOH/IOL of -8/8 mA specified."
      },
      {
        "number": "12",
        "name": "Y7",
        "type": "tri_state",
        "description": "Non-inverted 3-state output 7; high-impedance when G1 or G2 is high, IOH/IOL of -8/8 mA specified."
      },
      {
        "number": "13",
        "name": "Y6",
        "type": "tri_state",
        "description": "Non-inverted 3-state output 6; high-impedance when G1 or G2 is high, IOH/IOL of -8/8 mA specified."
      },
      {
        "number": "14",
        "name": "Y5",
        "type": "tri_state",
        "description": "Non-inverted 3-state output 5; high-impedance when G1 or G2 is high, IOH/IOL of -8/8 mA specified."
      },
      {
        "number": "15",
        "name": "Y4",
        "type": "tri_state",
        "description": "Non-inverted 3-state output 4; high-impedance when G1 or G2 is high, IOH/IOL of -8/8 mA specified."
      },
      {
        "number": "16",
        "name": "Y3",
        "type": "tri_state",
        "description": "Non-inverted 3-state output 3; high-impedance when G1 or G2 is high, IOH/IOL of -8/8 mA specified."
      },
      {
        "number": "17",
        "name": "Y2",
        "type": "tri_state",
        "description": "Non-inverted 3-state output 2; high-impedance when G1 or G2 is high, IOH/IOL of -8/8 mA specified."
      },
      {
        "number": "18",
        "name": "Y1",
        "type": "tri_state",
        "description": "Non-inverted 3-state output 1; high-impedance when G1 or G2 is high, IOH/IOL of -8/8 mA specified."
      },
      {
        "number": "19",
        "name": "G2",
        "type": "input",
        "description": "Active-low output enable input 2; when G1 or G2 is high the Y outputs are in the high-impedance state."
      },
      {
        "number": "20",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage pin, operating range 4.5 to 5.5 V (absolute maximum -0.5 to 7.0 V)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text+vision",
        "consensus_model": "claude-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 8,
        "cost_usd": 0.3103,
        "at": "2026-10-17T09:23:24"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603178558391005184",
        "pages": 8,
        "sha256": "3a3485b289292fb2",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 20,
        "described": 20,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "74vhct541aft.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          6.5,
          1.2
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "97339947f3a7196470ec2f1d9f9b92bb2fc2ab66ad53be0cf105192585ef3c9a",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "74vhct541aft-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          6.5,
          1.2
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "37dc39d136d9f9b1c075872ac0630a2682bc95f355ea6ba82650f77a39b23ca4",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "TOSHIBA",
      "Package": "TSSOP-20",
      "Category": "Logic",
      "Pins": "20"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "3a3485b289292fb2f4958c5946ffd8f8a3b5bcb62b8686fa73e45339452da8f5",
      "rows": [
        {
          "name": "Supply voltage (absolute max)",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input voltage (absolute max)",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Output voltage (absolute max)",
          "symbol": "VOUT",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 7,
          "conditions": "Output in OFF state",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Output voltage (absolute max), upper limit VCC + 0.5",
          "symbol": "VOUT",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": null,
          "conditions": "High (H) or Low (L) state; max printed as VCC + 0.5",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input diode current (absolute max)",
          "symbol": "IIK",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -20,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Output diode current (absolute max)",
          "symbol": "IOK",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -20,
          "typ": null,
          "max": 20,
          "conditions": "VOUT < GND, VOUT > VCC",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Output current (absolute max)",
          "symbol": "IOUT",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -25,
          "typ": null,
          "max": 25,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VCC/ground current (absolute max)",
          "symbol": "ICC",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -75,
          "typ": null,
          "max": 75,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Power dissipation (absolute max)",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 180,
          "conditions": "Ta = -40 to 85; derate -3.25 mW/ from Ta = 85 to 125 down to 50 mW",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature (absolute max)",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage (recommended operating)",
          "symbol": "VCC",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 4.5,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input voltage (recommended operating)",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output voltage (recommended operating)",
          "symbol": "VOUT",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": 5.5,
          "conditions": "Output in OFF state",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output voltage (recommended operating), upper limit VCC",
          "symbol": "VOUT",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": null,
          "conditions": "High (H) or Low (L) state; max printed as VCC",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature",
          "symbol": "Topr",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input rise and fall time",
          "symbol": "dt/dv",
          "kind": "recommended_operating",
          "unit": "ns/V",
          "min": 0,
          "typ": null,
          "max": 20,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "High-level input voltage",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": null,
          "conditions": "VCC = 4.5 to 5.5 V; Ta = 25",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Low-level input voltage",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.8,
          "conditions": "VCC = 4.5 to 5.5 V; Ta = 25",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "High-level output voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 4.4,
          "typ": 4.5,
          "max": null,
          "conditions": "VIN = VIH or VIL; IOH = -50 µA; VCC = 4.5 V; Ta = 25",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "High-level output voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 3.94,
          "typ": null,
          "max": null,
          "conditions": "VIN = VIH or VIL; IOH = -8 mA; VCC = 4.5 V; Ta = 25",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Low-level output voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0,
          "max": 0.1,
          "conditions": "VIN = VIH or VIL; IOL = 50 µA; VCC = 4.5 V; Ta = 25",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Low-level output voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.36,
          "conditions": "VIN = VIH or VIL; IOL = 8 mA; VCC = 4.5 V; Ta = 25",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "3-state output OFF-state leakage current",
          "symbol": "IOZ",
          "kind": "electrical",
          "unit": "µA",
          "min": -0.25,
          "typ": null,
          "max": 0.25,
          "conditions": "VIN = VIH or VIL; VOUT = VCC or GND; VCC = 5.5 V; Ta = 25",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input leakage current",
          "symbol": "IIN",
          "kind": "electrical",
          "unit": "µA",
          "min": -0.1,
          "typ": null,
          "max": 0.1,
          "conditions": "VIN = 5.5 V or GND; VCC = 0 to 5.5 V; Ta = 25",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Quiescent supply current",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 4,
          "conditions": "VIN = VCC or GND; VCC = 5.5 V; Ta = 25",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Quiescent supply current (per input, additional)",
          "symbol": "ICCT",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 1.35,
          "conditions": "Per input: VIN = 3.4 V; Other input: VCC or GND; VCC = 5.5 V; Ta = 25",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output leakage current (Power-OFF)",
          "symbol": "IOPD",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 0.5,
          "conditions": "VOUT = 5.5 V; VCC = 0 V; Ta = 25",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "High-level output voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 4.4,
          "typ": null,
          "max": null,
          "conditions": "VIN = VIH or VIL; IOH = -50 µA; VCC = 4.5 V; Ta = -40 to 85",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "High-level output voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 3.8,
          "typ": null,
          "max": null,
          "conditions": "VIN = VIH or VIL; IOH = -8 mA; VCC = 4.5 V; Ta = -40 to 85",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Low-level output voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.1,
          "conditions": "VIN = VIH or VIL; IOL = 50 µA; VCC = 4.5 V; Ta = -40 to 85",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Low-level output voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.44,
          "conditions": "VIN = VIH or VIL; IOL = 8 mA; VCC = 4.5 V; Ta = -40 to 85",
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