main
Ray brief: say who settled the pinout (an AI reviewer or models), not a person 6363173 3h ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "hef4050bt",
  "title": "HEF4050BT",
  "brief": "Nexperia Buffers, Drivers, Receivers, Transceivers, SOIC-16. Pinout settled in review by an AI reviewer against the manufacturer's datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "logic",
    "hef4050bt",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "HEF4050BT",
    "manufacturer": "Nexperia",
    "package": "SOIC-16",
    "pin_count": 16,
    "category": "Logic",
    "subcategory": "Buffers, Drivers, Receivers, Transceivers",
    "datasheet": "https://assets.nexperia.com/documents/data-sheet/HEF4050BT.pdf",
    "parts": {
      "symbol": "hef4050bt.kicad_sym",
      "footprint": "hef4050bt.kicad_mod",
      "model_3d": "hef4050bt-hero.glb",
      "model_3d_plain": "hef4050bt-etched.glb",
      "model_3d_step": "hef4050bt-etched.step",
      "model_3d_step_plain": "hef4050bt.step",
      "lbr": "hef4050bt.lbr"
    },
    "distributor_links": {
      "lcsc": "C118326"
    },
    "distributor_check": {
      "checked_at": "2026-11-05T23:39:22Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive supply voltage, recommended range 3 V to 15 V referenced to VSS (absolute maximum 0.5 V to +18 V)."
      },
      {
        "number": "2",
        "name": "1Y",
        "type": "output",
        "description": "Output of non-inverting buffer 1, with high current output capability suitable for driving TTL or high capacitive loads."
      },
      {
        "number": "3",
        "name": "1A",
        "type": "input",
        "description": "Input of non-inverting buffer 1; input voltages may exceed VDD (absolute maximum input voltage 0.5 V to +18 V), and unused inputs must be connected to VDD, VSS, or another input."
      },
      {
        "number": "4",
        "name": "2Y",
        "type": "output",
        "description": "Output of non-inverting buffer 2, with high current output capability suitable for driving TTL or high capacitive loads."
      },
      {
        "number": "5",
        "name": "2A",
        "type": "input",
        "description": "Input of non-inverting buffer 2; input voltages may exceed VDD (absolute maximum input voltage 0.5 V to +18 V), and unused inputs must be connected to VDD, VSS, or another input."
      },
      {
        "number": "6",
        "name": "3Y",
        "type": "output",
        "description": "Output of non-inverting buffer 3, with high current output capability suitable for driving TTL or high capacitive loads."
      },
      {
        "number": "7",
        "name": "3A",
        "type": "input",
        "description": "Input of non-inverting buffer 3; input voltages may exceed VDD (absolute maximum input voltage 0.5 V to +18 V), and unused inputs must be connected to VDD, VSS, or another input."
      },
      {
        "number": "8",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground supply voltage, the reference for VDD (usually ground)."
      },
      {
        "number": "9",
        "name": "4A",
        "type": "input",
        "description": "Input of non-inverting buffer 4; input voltages may exceed VDD (absolute maximum input voltage 0.5 V to +18 V), and unused inputs must be connected to VDD, VSS, or another input."
      },
      {
        "number": "10",
        "name": "4Y",
        "type": "output",
        "description": "Output of non-inverting buffer 4, with high current output capability suitable for driving TTL or high capacitive loads."
      },
      {
        "number": "11",
        "name": "5A",
        "type": "input",
        "description": "Input of non-inverting buffer 5; input voltages may exceed VDD (absolute maximum input voltage 0.5 V to +18 V), and unused inputs must be connected to VDD, VSS, or another input."
      },
      {
        "number": "12",
        "name": "5Y",
        "type": "output",
        "description": "Output of non-inverting buffer 5, with high current output capability suitable for driving TTL or high capacitive loads."
      },
      {
        "number": "13",
        "name": "n.c.",
        "type": "unconnected",
        "description": "Not connected internally."
      },
      {
        "number": "14",
        "name": "6A",
        "type": "input",
        "description": "Input of non-inverting buffer 6; input voltages may exceed VDD (absolute maximum input voltage 0.5 V to +18 V), and unused inputs must be connected to VDD, VSS, or another input."
      },
      {
        "number": "15",
        "name": "6Y",
        "type": "output",
        "description": "Output of non-inverting buffer 6, with high current output capability suitable for driving TTL or high capacitive loads."
      },
      {
        "number": "16",
        "name": "n.c.",
        "type": "unconnected",
        "description": "Not connected internally."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://assets.nexperia.com/documents/data-sheet/HEF4050BT.pdf",
        "pages": 12,
        "sha256": "cee08a62f4003323",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "hef4050bt.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "d5eeddb4c0b304dc61950919b126fc61d7586abd5f16ab71a2a79759ec6498bf",
        "checked": "2026-11-05",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "hef4050bt-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "243fc0b303c0f307bc4bcd6f8d46918183cd366d4803077929213c598e5b0ef4",
        "checked": "2026-11-05",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Nexperia",
      "Package": "SOIC-16",
      "Category": "Logic",
      "Pins": "16"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "cee08a62f4003323def4dbaf38231da4cd45538be72d5c9aa3468bb5fd5bc820",
      "rows": [
        {
          "name": "Supply voltage",
          "symbol": "VDD",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 18,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input clamping current",
          "symbol": "IIK",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -10,
          "typ": null,
          "max": null,
          "conditions": "VI < -0.5 V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input voltage",
          "symbol": "VI",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 18,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output clamping current",
          "symbol": "IOK",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "VO < -0.5 V or VO > VDD + 0.5 V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input/output current",
          "symbol": "II/O",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Supply current",
          "symbol": "IDD",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Ambient temperature",
          "symbol": "Tamb",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Total power dissipation",
          "symbol": "Ptot",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 500,
          "conditions": "Tamb = -40 °C to +85 °C; SO16 package",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Power dissipation per output",
          "symbol": "P",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage",
          "symbol": "VDD",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 3,
          "typ": null,
          "max": 15,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input voltage",
          "symbol": "VI",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": 15,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Ambient temperature",
          "symbol": "Tamb",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "in free air",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input transition rise and fall rate",
          "symbol": "t/V",
          "kind": "recommended_operating",
          "unit": "µs/V",
          "min": null,
          "typ": null,
          "max": 3.75,
          "conditions": "VDD = 5 V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input transition rise and fall rate",
          "symbol": "t/V",
          "kind": "recommended_operating",
          "unit": "µs/V",
          "min": null,
          "typ": null,
          "max": 0.5,
          "conditions": "VDD = 10 V",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "Input transition rise and fall rate",
          "symbol": "t/V",
          "kind": "recommended_operating",
          "unit": "µs/V",
          "min": null,
          "typ": null,
          "max": 0.08,
          "conditions": "VDD = 15 V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "HIGH-level input voltage",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": 3.5,
          "typ": null,
          "max": null,
          "conditions": "IO < 1 µA; VDD = 5 V; Tamb = 25 °C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "HIGH-level input voltage",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": 7,
          "typ": null,
          "max": null,
          "conditions": "IO < 1 µA; VDD = 10 V; Tamb = 25 °C",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "HIGH-level input voltage",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": 11,
          "typ": null,
          "max": null,
          "conditions": "IO < 1 µA; VDD = 15 V; Tamb = 25 °C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "LOW-level input voltage",
          "symbol": "VIL",
          "kind": "electrical",
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          "min": null,
          "typ": null,
          "max": 1.5,
          "conditions": "IO < 1 µA; VDD = 5 V; Tamb = 25 °C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "LOW-level input voltage",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 3,
          "conditions": "IO < 1 µA; VDD = 10 V; Tamb = 25 °C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "LOW-level input voltage",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
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          "max": 4,
          "conditions": "IO < 1 µA; VDD = 15 V; Tamb = 25 °C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "HIGH-level output voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 4.95,
          "typ": null,
          "max": null,
          "conditions": "IO < 1 µA; VDD = 5 V; Tamb = 25 °C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "HIGH-level output voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 9.95,
          "typ": null,
          "max": null,
          "conditions": "IO < 1 µA; VDD = 10 V; Tamb = 25 °C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "HIGH-level output voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 14.95,
          "typ": null,
          "max": null,
          "conditions": "IO < 1 µA; VDD = 15 V; Tamb = 25 °C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "LOW-level output voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.05,
          "conditions": "IO < 1 µA; VDD = 5 V; Tamb = 25 °C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "HIGH-level output current",
          "symbol": "IOH",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 1.4,
          "conditions": "VO = 2.5 V; VDD = 5 V; Tamb = 25 °C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "HIGH-level output current",
          "symbol": "IOH",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 0.44,
          "conditions": "VO = 4.6 V; VDD = 5 V; Tamb = 25 °C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "HIGH-level output current",
          "symbol": "IOH",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 1.1,
          "conditions": "VO = 9.5 V; VDD = 10 V; Tamb = 25 °C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "HIGH-level output current",
          "symbol": "IOH",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 3,
          "conditions": "VO = 13.5 V; VDD = 15 V; Tamb = 25 °C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "LOW-level output current",
          "symbol": "IOL",
          "kind": "electrical",
          "unit": "mA",
          "min": 2.9,
          "typ": null,
          "max": null,
          "conditions": "VO = 0.4 V; VDD = 4.75 V; Tamb = 25 °C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "LOW-level output current",
          "symbol": "IOL",
          "kind": "electrical",
          "unit": "mA",
          "min": 10,
          "typ": null,
          "max": null,
          "conditions": "VO = 0.5 V; VDD = 10 V; Tamb = 25 °C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "LOW-level output current",
          "symbol": "IOL",
          "kind": "electrical",
          "unit": "mA",
          "min": 20,
          "typ": null,
          "max": null,
          "conditions": "VO = 1.5 V; VDD = 15 V; Tamb = 25 °C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Input leakage current",
          "symbol": "II",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 0.3,
          "conditions": "VDD = 15 V; VI = VSS or VDD; Tamb = 25 °C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Supply current",
          "symbol": "IDD",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 4,
          "conditions": "IO = 0 A; VDD = 5 V; Tamb = 25 °C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Supply current",
          "symbol": "IDD",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 8,
          "conditions": "IO = 0 A; VDD = 10 V; Tamb = 25 °C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Supply current",
          "symbol": "IDD",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 16,
          "conditions": "IO = 0 A; VDD = 15 V; Tamb = 25 °C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Input capacitance",
          "symbol": "CI",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": null,
          "max": 7.5,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "LOW-level output current",
          "symbol": "IOL",
          "kind": "electrical",
          "unit": "mA",
          "min": 2.3,
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