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Ray Set visibility: public 4cf4a97 7h ago
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{
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  "type": "component",
  "slug": "74hct139d",
  "title": "74HCT139D",
  "brief": "Nexperia Signal Switches, Multiplexers, Decoders, SO-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
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    "mpn": "74HCT139D",
    "manufacturer": "Nexperia",
    "package": "SO-16",
    "pin_count": 16,
    "category": "Logic",
    "subcategory": "Signal Switches, Multiplexers, Decoders",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588913597796003840",
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      "footprint": "74hct139d.kicad_mod",
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      "model_3d_plain": "74hct139d-etched.glb",
      "model_3d_step": "74hct139d-etched.step",
      "model_3d_step_plain": "74hct139d.step",
      "lbr": "74hct139d.lbr"
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    "distributor_links": {
      "lcsc": "C545677"
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    "distributor_check": {
      "checked_at": "2026-10-18T12:56:13Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "1E",
        "type": "input",
        "description": "Active-LOW enable input for decoder 1; when it is HIGH, all outputs 1Y0 to 1Y3 are forced HIGH."
      },
      {
        "number": "2",
        "name": "1A0",
        "type": "input",
        "description": "Address input bit 0 for decoder 1 (binary weight 1), which selects one of outputs 1Y0 to 1Y3."
      },
      {
        "number": "3",
        "name": "1A1",
        "type": "input",
        "description": "Address input bit 1 for decoder 1 (binary weight 2), which selects one of outputs 1Y0 to 1Y3."
      },
      {
        "number": "4",
        "name": "1Y0",
        "type": "output",
        "description": "Active-LOW mutually exclusive output 0 of decoder 1, LOW when nE is LOW and nA1 nA0 = 00."
      },
      {
        "number": "5",
        "name": "1Y1",
        "type": "output",
        "description": "Active-LOW mutually exclusive output 1 of decoder 1, LOW when nE is LOW and nA1 nA0 = 01."
      },
      {
        "number": "6",
        "name": "1Y2",
        "type": "output",
        "description": "Active-LOW mutually exclusive output 2 of decoder 1, LOW when nE is LOW and nA1 nA0 = 10."
      },
      {
        "number": "7",
        "name": "1Y3",
        "type": "output",
        "description": "Active-LOW mutually exclusive output 3 of decoder 1, LOW when nE is LOW and nA1 nA0 = 11."
      },
      {
        "number": "8",
        "name": "GND",
        "type": "power_in",
        "description": "Ground (0 V) reference for all voltages on the device."
      },
      {
        "number": "9",
        "name": "2Y3",
        "type": "output",
        "description": "Active-LOW mutually exclusive output 3 of decoder 2, LOW when 2E is LOW and 2A1 2A0 = 11."
      },
      {
        "number": "10",
        "name": "2Y2",
        "type": "output",
        "description": "Active-LOW mutually exclusive output 2 of decoder 2, LOW when 2E is LOW and 2A1 2A0 = 10."
      },
      {
        "number": "11",
        "name": "2Y1",
        "type": "output",
        "description": "Active-LOW mutually exclusive output 1 of decoder 2, LOW when 2E is LOW and 2A1 2A0 = 01."
      },
      {
        "number": "12",
        "name": "2Y0",
        "type": "output",
        "description": "Active-LOW mutually exclusive output 0 of decoder 2, LOW when 2E is LOW and 2A1 2A0 = 00."
      },
      {
        "number": "13",
        "name": "2A1",
        "type": "input",
        "description": "Address input bit 1 for decoder 2 (binary weight 2), which selects one of outputs 2Y0 to 2Y3."
      },
      {
        "number": "14",
        "name": "2A0",
        "type": "input",
        "description": "Address input bit 0 for decoder 2 (binary weight 1), which selects one of outputs 2Y0 to 2Y3."
      },
      {
        "number": "15",
        "name": "2E",
        "type": "input",
        "description": "Active-LOW enable input for decoder 2; when it is HIGH, all outputs 2Y0 to 2Y3 are forced HIGH."
      },
      {
        "number": "16",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply voltage; the 74HCT139 recommended range is 4.5 V to 5.5 V with respect to GND."
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    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
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        "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": [],
        "pages_sent": 13,
        "cost_usd": 0.0713,
        "at": "2026-10-18T12:52:47"
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        "pages": 13,
        "sha256": "388b7843cfdd5442",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
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        "total": 16,
        "described": 16,
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        "refuses_to_fabricate": true
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  "metadata": {
    "specs": {
      "Manufacturer": "Nexperia",
      "Package": "SO-16",
      "Category": "Logic",
      "Pins": "16"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "388b7843cfdd54421e676f9b6616e2daf4b6d805c7328fb1ac58e2f08390dafc",
      "rows": [
        {
          "name": "Supply voltage",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input clamping current",
          "symbol": "IIK",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -20,
          "typ": null,
          "max": 20,
          "conditions": "VI < -0.5 V or VI > VCC + 0.5 V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output clamping current",
          "symbol": "IOK",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -20,
          "typ": null,
          "max": 20,
          "conditions": "VO < -0.5 V or VO > VCC + 0.5 V",
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          "source": "datasheet"
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          "typ": null,
          "max": 25,
          "conditions": "VO = -0.5 V to (VCC + 0.5 V)",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "Quiescent supply current",
          "symbol": "ICC",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 50,
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          "name": "Ground current",
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          "min": -50,
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          "max": null,
          "conditions": "",
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          "source": "datasheet"
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        {
          "name": "Storage temperature",
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          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Total power dissipation",
          "symbol": "Ptot",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 500,
          "conditions": "SOT109-1 (SO16): derates linearly 12.4 mW/K above 110 °C",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "Supply voltage",
          "symbol": "VCC",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 4.5,
          "typ": 5,
          "max": 5.5,
          "conditions": "74HCT139 column",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input voltage",
          "symbol": "VI",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 0,
          "typ": null,
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        {
          "name": "Output voltage",
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          "min": 0,
          "typ": null,
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          "source": "datasheet"
        },
        {
          "name": "Ambient temperature",
          "symbol": "Tamb",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": 25,
          "max": 125,
          "conditions": "",
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        {
          "name": "Input transition rise and fall rate",
          "symbol": "Δt/ΔV",
          "kind": "recommended_operating",
          "unit": "ns/V",
          "min": null,
          "typ": 1.67,
          "max": 139,
          "conditions": "VCC = 4.5 V",
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          "source": "datasheet"
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        {
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          "typ": 1.6,
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          "conditions": "VCC = 4.5 V to 5.5 V; 25 °C",
          "source_page": 5,
          "source": "datasheet"
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          "name": "HIGH-level input voltage",
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          "conditions": "VCC = 4.5 V to 5.5 V; -40 °C to +125 °C",
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          "source": "datasheet"
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        {
          "name": "LOW-level input voltage",
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          "kind": "electrical",
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          "min": null,
          "typ": 1.2,
          "max": 0.8,
          "conditions": "VCC = 4.5 V to 5.5 V; 25 °C",
          "source_page": 5,
          "source": "datasheet"
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        {
          "name": "LOW-level input voltage",
          "symbol": "VIL",
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          "conditions": "VCC = 4.5 V to 5.5 V; -40 °C to +125 °C",
          "source_page": 5,
          "source": "datasheet"
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        {
          "name": "HIGH-level output voltage",
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          "kind": "electrical",
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          "min": 4.4,
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          "conditions": "VI = VIH or VIL; IO = -20 μA; VCC = 4.5 V; 25 °C",
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          "name": "HIGH-level output voltage",
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        {
          "name": "HIGH-level output voltage",
          "symbol": "VOH",
          "kind": "electrical",
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          "min": 3.98,
          "typ": 4.32,
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        {
          "name": "HIGH-level output voltage",
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        {
          "name": "LOW-level output voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0,
          "max": 0.1,
          "conditions": "VI = VIH or VIL; IO = 20 μA; VCC = 4.5 V; 25 °C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "LOW-level output voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.1,
          "conditions": "VI = VIH or VIL; IO = 20 μA; VCC = 4.5 V; -40 °C to +125 °C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "LOW-level output voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.15,
          "max": 0.26,
          "conditions": "VI = VIH or VIL; IO = 4.0 mA; VCC = 4.5 V; 25 °C",
          "source_page": 5,
          "source": "datasheet"
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        {
          "name": "LOW-level output voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.4,
          "conditions": "VI = VIH or VIL; IO = 4.0 mA; VCC = 4.5 V; -40 °C to +125 °C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Input leakage current",
          "symbol": "II",
          "kind": "electrical",
          "unit": "μA",
          "min": -0.1,
          "typ": null,
          "max": 0.1,
          "conditions": "VI = VCC or GND; VCC = 5.5 V; 25 °C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Input leakage current",
          "symbol": "II",
          "kind": "electrical",
          "unit": "μA",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "VI = VCC or GND; VCC = 5.5 V; -40 °C to +125 °C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "OFF-state output current",
          "symbol": "IOZ",
          "kind": "electrical",
          "unit": "μA",
          "min": -0.5,
          "typ": null,
          "max": 0.5,
          "conditions": "VI = VIH or VIL; VO = VCC or GND; VCC = 5.5 V; 25 °C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "OFF-state output current",
          "symbol": "IOZ",
          "kind": "electrical",
          "unit": "μA",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "VI = VIH or VIL; VO = VCC or GND; VCC = 5.5 V; -40 °C to +125 °C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Supply current",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 8,
          "conditions": "VI = VCC or GND; IO = 0 A; VCC = 5.5 V; 25 °C",
          "source_page": 6,
          "source": "datasheet"
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        {
          "name": "Supply current",
          "symbol": "ICC",
          "kind": "electrical",
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          "typ": null,
          "max": 160,
          "conditions": "VI = VCC or GND; IO = 0 A; VCC = 5.5 V; -40 °C to +125 °C",
          "source_page": 6,
          "source": "datasheet"
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        {
          "name": "Additional supply current per input pin (1An inputs)",
          "symbol": "ΔICC",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 70,
          "max": 252,
          "conditions": "VI = VCC - 2.1 V; other inputs at VCC or GND; VCC = 4.5 V to 5.5 V; IO = 0 A; 25 °C",
          "source_page": 6,
          "source": "datasheet"
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        {
          "name": "Additional supply current per input pin (1An inputs)",
          "symbol": "ΔICC",
          "kind": "electrical",
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          "min": null,
          "typ": null,
          "max": 343,
          "conditions": "VI = VCC - 2.1 V; other inputs at VCC or GND; VCC = 4.5 V to 5.5 V; IO = 0 A; -40 °C to +125 °C",
          "source_page": 6,
          "source": "datasheet"
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        {
          "name": "Additional supply current per input pin (2An inputs)",
          "symbol": "ΔICC",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 70,
          "max": 252,
          "conditions": "VI = VCC - 2.1 V; other inputs at VCC or GND; VCC = 4.5 V to 5.5 V; IO = 0 A; 25 °C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Additional supply current per input pin (2An inputs)",
          "symbol": "ΔICC",
          "kind": "electrical",
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          "min": null,
          "typ": null,
          "max": 343,
          "conditions": "VI = VCC - 2.1 V; other inputs at VCC or GND; VCC = 4.5 V to 5.5 V; IO = 0 A; -40 °C to +125 °C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Additional supply current per input pin (nE inputs)",
          "symbol": "ΔICC",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 135,
          "max": 486,
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