SN74HCT240PWR

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  "title": "SN74HCT240PWR",
  "brief": "Texas Instruments Buffers, Drivers, Receivers, Transceivers, TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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    "mpn": "SN74HCT240PWR",
    "manufacturer": "Texas Instruments",
    "package": "TSSOP-20",
    "pin_count": 20,
    "category": "Logic",
    "subcategory": "Buffers, Drivers, Receivers, Transceivers",
    "datasheet": "https://www.ti.com/lit/ds/symlink/sn74hct240.pdf",
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    "pins": [
      {
        "number": "1",
        "name": "1OE",
        "type": "input",
        "description": "Active-low output enable for buffer section 1; when high, outputs 1Y1 to 1Y4 are forced to high impedance."
      },
      {
        "number": "2",
        "name": "1A1",
        "type": "input",
        "description": "Data input 1A1 of buffer section 1; when 1OE is low, 1Y1 outputs the inverted value of 1A1."
      },
      {
        "number": "3",
        "name": "2Y4",
        "type": "output",
        "description": "Inverting 3-state output of buffer section 2; high impedance when 2OE is high."
      },
      {
        "number": "4",
        "name": "1A2",
        "type": "input",
        "description": "Data input 1A2 of buffer section 1; when 1OE is low, 1Y2 outputs the inverted value of 1A2."
      },
      {
        "number": "5",
        "name": "2Y3",
        "type": "output",
        "description": "Inverting 3-state output of buffer section 2; high impedance when 2OE is high."
      },
      {
        "number": "6",
        "name": "1A3",
        "type": "input",
        "description": "Data input 1A3 of buffer section 1; when 1OE is low, 1Y3 outputs the inverted value of 1A3."
      },
      {
        "number": "7",
        "name": "2Y2",
        "type": "output",
        "description": "Inverting 3-state output of buffer section 2; high impedance when 2OE is high."
      },
      {
        "number": "8",
        "name": "1A4",
        "type": "input",
        "description": "Data input 1A4 of buffer section 1; when 1OE is low, 1Y4 outputs the inverted value of 1A4."
      },
      {
        "number": "9",
        "name": "2Y1",
        "type": "output",
        "description": "Inverting 3-state output of buffer section 2; high impedance when 2OE is high."
      },
      {
        "number": "10",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin."
      },
      {
        "number": "11",
        "name": "2A1",
        "type": "input",
        "description": "Data input 2A1 of buffer section 2; when 2OE is low, 2Y1 outputs the inverted value of 2A1."
      },
      {
        "number": "12",
        "name": "1Y4",
        "type": "output",
        "description": "Inverting 3-state output of buffer section 1; high impedance when 1OE is high."
      },
      {
        "number": "13",
        "name": "2A2",
        "type": "input",
        "description": "Data input 2A2 of buffer section 2; when 2OE is low, 2Y2 outputs the inverted value of 2A2."
      },
      {
        "number": "14",
        "name": "1Y3",
        "type": "output",
        "description": "Inverting 3-state output of buffer section 1; high impedance when 1OE is high."
      },
      {
        "number": "15",
        "name": "2A3",
        "type": "input",
        "description": "Data input 2A3 of buffer section 2; when 2OE is low, 2Y3 outputs the inverted value of 2A3."
      },
      {
        "number": "16",
        "name": "1Y2",
        "type": "output",
        "description": "Inverting 3-state output of buffer section 1; high impedance when 1OE is high."
      },
      {
        "number": "17",
        "name": "2A4",
        "type": "input",
        "description": "Data input 2A4 of buffer section 2; when 2OE is low, 2Y4 outputs the inverted value of 2A4."
      },
      {
        "number": "18",
        "name": "1Y1",
        "type": "output",
        "description": "Inverting 3-state output of buffer section 1; high impedance when 1OE is high."
      },
      {
        "number": "19",
        "name": "2OE",
        "type": "input",
        "description": "Active-low output enable for buffer section 2; when high, outputs 2Y1 to 2Y4 are forced to high impedance."
      },
      {
        "number": "20",
        "name": "VCC",
        "type": "power_in",
        "description": "Power supply pin; the recommended supply range is 4.5 V to 5.5 V (page 4)."
      }
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      "Manufacturer": "Texas Instruments",
      "Package": "TSSOP-20",
      "Category": "Logic",
      "Pins": "20"
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          "name": "Output high voltage, IOH = -20 µA",
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          "kind": "electrical",
          "unit": "V",
          "min": 4.4,
          "typ": 4.499,
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          "name": "Supply current increase per input at TTL level",
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          "name": "Input capacitance",
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          "name": "Propagation delay time, A to Y",
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          "name": "Transition time, Y",
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          "name": "Supply voltage",
          "symbol": "VCC",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 4.5,
          "typ": 5,
          "max": 5.5,
          "conditions": "",
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        {
          "name": "High-level input voltage",
          "symbol": "VIH",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": null,
          "conditions": "VCC = 4.5 V to 5.5 V",
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          "name": "Low-level input voltage",
          "symbol": "VIL",
          "kind": "recommended_operating",
          "unit": "V",
          "min": null,
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          "max": 0.8,
          "conditions": "VCC = 4.5 V to 5.5 V",
          "source_page": 4,
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        {
          "name": "Input voltage",
          "symbol": "VI",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": null,
          "conditions": "Maximum printed as VCC",
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        {
          "name": "Output voltage",
          "symbol": "VO",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": null,
          "conditions": "Maximum printed as VCC",
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        {
          "name": "Input transition rise/fall time",
          "symbol": "Δt/Δv",
          "kind": "recommended_operating",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 500,
          "conditions": "",
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        {
          "name": "Operating free-air temperature",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "SN74HCT240",
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        {
          "name": "Supply voltage range",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 7,
          "conditions": "",
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        {
          "name": "Input clamp current",
          "symbol": "IIK",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -20,
          "typ": null,
          "max": 20,
          "conditions": "VI < 0 or VI > VCC",
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          "name": "Output clamp current",
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          "kind": "absolute_maximum",
          "unit": "mA",
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          "typ": null,
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          "conditions": "VO < 0 or VO > VCC",
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          "name": "Continuous output current",
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          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -35,
          "typ": null,
          "max": 35,
          "conditions": "VO = 0 to VCC",
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          "name": "Continuous current through VCC or GND",
          "symbol": "",
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          "min": -70,
          "typ": null,
          "max": 70,
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          "name": "Junction temperature",
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          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
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          "name": "Storage temperature range",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
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        {
          "name": "Junction-to-ambient thermal resistance (PW, TSSOP)",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 131.8,
          "max": null,
          "conditions": "PW (TSSOP, 20 pins)",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "Junction-to-case (top) thermal resistance (PW, TSSOP)",
          "symbol": "RθJC(top)",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 72.2,
          "max": null,
          "conditions": "PW (TSSOP, 20 pins)",
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        {
          "name": "Junction-to-board thermal resistance (PW, TSSOP)",
          "symbol": "RθJB",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 82.8,
          "max": null,
          "conditions": "PW (TSSOP, 20 pins)",
          "source_page": 4,
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        {
          "name": "Junction-to-top characterization parameter (PW, TSSOP)",
          "symbol": "ψJT",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 21.5,
          "max": null,
          "conditions": "PW (TSSOP, 20 pins)",
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          "name": "Junction-to-board characterization parameter (PW, TSSOP)",
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          "min": null,
          "typ": 82.4,
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