74VHC244MTCX

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  "type": "component",
  "slug": "74vhc244mtcx",
  "title": "74VHC244MTCX",
  "brief": "onsemi Buffers, Drivers, Receivers, Transceivers, TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
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    "logic",
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  "component": {
    "mpn": "74VHC244MTCX",
    "manufacturer": "onsemi",
    "package": "TSSOP-20",
    "pin_count": 20,
    "category": "Logic",
    "subcategory": "Buffers, Drivers, Receivers, Transceivers",
    "datasheet": "https://www.onsemi.com/pdf/datasheet/74vhc244mtcx-d.pdf",
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    "distributor_links": {
      "lcsc": "C903420",
      "digikey": "74VHC244MTCXTR-ND",
      "mouser": "512-74VHC244MTCX"
    },
    "distributor_check": {
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        "pn": "512-74VHC244MTCX",
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    },
    "pins": [
      {
        "number": "1",
        "name": "OE1",
        "type": "input",
        "description": "Active-LOW 3-STATE output enable input for outputs O0-O3 (pins 18, 16, 14, 12); outputs are high impedance when HIGH."
      },
      {
        "number": "2",
        "name": "I0",
        "type": "input",
        "description": "Data input 0, drives output O0; input tolerates 0V to 7V regardless of supply voltage."
      },
      {
        "number": "3",
        "name": "O4",
        "type": "tri_state",
        "description": "3-STATE buffer output 4, controlled by OE2 and driven from I4."
      },
      {
        "number": "4",
        "name": "I1",
        "type": "input",
        "description": "Data input 1, drives output O1; input tolerates 0V to 7V regardless of supply voltage."
      },
      {
        "number": "5",
        "name": "O5",
        "type": "tri_state",
        "description": "3-STATE buffer output 5, controlled by OE2 and driven from I5."
      },
      {
        "number": "6",
        "name": "I2",
        "type": "input",
        "description": "Data input 2, drives output O2; input tolerates 0V to 7V regardless of supply voltage."
      },
      {
        "number": "7",
        "name": "O6",
        "type": "tri_state",
        "description": "3-STATE buffer output 6, controlled by OE2 and driven from I6."
      },
      {
        "number": "8",
        "name": "I3",
        "type": "input",
        "description": "Data input 3, drives output O3; input tolerates 0V to 7V regardless of supply voltage."
      },
      {
        "number": "9",
        "name": "O7",
        "type": "tri_state",
        "description": "3-STATE buffer output 7, controlled by OE2 and driven from I7."
      },
      {
        "number": "10",
        "name": "GND",
        "type": "power_in",
        "description": "Ground (0V) supply pin."
      },
      {
        "number": "11",
        "name": "I7",
        "type": "input",
        "description": "Data input 7, drives output O7; input tolerates 0V to 7V regardless of supply voltage."
      },
      {
        "number": "12",
        "name": "O3",
        "type": "tri_state",
        "description": "3-STATE buffer output 3, controlled by OE1 and driven from I3."
      },
      {
        "number": "13",
        "name": "I6",
        "type": "input",
        "description": "Data input 6, drives output O6; input tolerates 0V to 7V regardless of supply voltage."
      },
      {
        "number": "14",
        "name": "O2",
        "type": "tri_state",
        "description": "3-STATE buffer output 2, controlled by OE1 and driven from I2."
      },
      {
        "number": "15",
        "name": "I5",
        "type": "input",
        "description": "Data input 5, drives output O5; input tolerates 0V to 7V regardless of supply voltage."
      },
      {
        "number": "16",
        "name": "O1",
        "type": "tri_state",
        "description": "3-STATE buffer output 1, controlled by OE1 and driven from I1."
      },
      {
        "number": "17",
        "name": "I4",
        "type": "input",
        "description": "Data input 4, drives output O4; input tolerates 0V to 7V regardless of supply voltage."
      },
      {
        "number": "18",
        "name": "O0",
        "type": "tri_state",
        "description": "3-STATE buffer output 0, controlled by OE1 and driven from I0."
      },
      {
        "number": "19",
        "name": "OE2",
        "type": "input",
        "description": "Active-LOW 3-STATE output enable input for outputs O4-O7 (pins 3, 5, 7, 9); outputs are high impedance when HIGH."
      },
      {
        "number": "20",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply voltage, recommended 2.0V to 5.5V (absolute maximum 7.0V)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
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        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet is for 74VHC244MTC (TSSOP, MTC20). The MPN 74VHC244MTCX is the same part on tape and r",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 10,
        "cost_usd": 0.2852,
        "at": "2026-10-18T06:25:42"
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      "datasheet": {
        "url": "https://www.onsemi.com/pdf/datasheet/74vhc244mtcx-d.pdf",
        "pages": 10,
        "sha256": "3c1c85b7ad0e798c",
        "source_tier": "mfr"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
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        "described": 20,
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        "refuses_to_fabricate": true
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        "checked": "2026-10-18",
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  "metadata": {
    "specs": {
      "Manufacturer": "onsemi",
      "Package": "TSSOP-20",
      "Category": "Logic",
      "Pins": "20"
    },
    "characteristics": {
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      "source": "datasheet",
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      "rows": [
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          "name": "Supply Voltage (VCC)",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
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        {
          "name": "DC Input Voltage (VIN)",
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          "name": "DC VCC/GND Current (ICC)",
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          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -75,
          "typ": null,
          "max": 75,
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        {
          "name": "Storage Temperature (TSTG)",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
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        {
          "name": "Lead Temperature (TL)",
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          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "Soldering, 10 seconds",
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          "name": "Supply Voltage (VCC)",
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          "kind": "recommended_operating",
          "unit": "V",
          "min": 2,
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          "conditions": "",
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        {
          "name": "Input Voltage (VIN)",
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          "min": 0,
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          "kind": "recommended_operating",
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          "min": 0,
          "typ": null,
          "max": null,
          "conditions": "Max printed as VCC",
          "source_page": 4,
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        {
          "name": "Operating Temperature (TOPR)",
          "symbol": "TOPR",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
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          "name": "Input Rise and Fall Time",
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          "kind": "recommended_operating",
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          "min": 0,
          "typ": null,
          "max": 100,
          "conditions": "VCC 3.3V ±0.3V",
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          "name": "Input Rise and Fall Time",
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          "kind": "recommended_operating",
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          "typ": null,
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          "name": "HIGH Level Input Voltage",
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          "kind": "electrical",
          "unit": "V",
          "min": 1.5,
          "typ": null,
          "max": null,
          "conditions": "VCC 2.0V; TA 25°C",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "LOW Level Input Voltage",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.5,
          "conditions": "VCC 2.0V; TA 25°C",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "HIGH Level Output Voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 1.9,
          "typ": 2,
          "max": null,
          "conditions": "VCC 2.0V; VIN=VIH or VIL; IOH 50 µA; TA 25°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "HIGH Level Output Voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 1.9,
          "typ": null,
          "max": null,
          "conditions": "VCC 2.0V; VIN=VIH or VIL; IOH 50 µA; TA -40 to 85°C",
          "source_page": 4,
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        },
        {
          "name": "HIGH Level Output Voltage",
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          "kind": "electrical",
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          "min": 2.9,
          "typ": 3,
          "max": null,
          "conditions": "VCC 3.0V; VIN=VIH or VIL; IOH 50 µA; TA 25°C",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "HIGH Level Output Voltage",
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          "min": 2.9,
          "typ": null,
          "max": null,
          "conditions": "VCC 3.0V; VIN=VIH or VIL; IOH 50 µA; TA -40 to 85°C",
          "source_page": 4,
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        },
        {
          "name": "HIGH Level Output Voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 4.4,
          "typ": 4.5,
          "max": null,
          "conditions": "VCC 4.5V; VIN=VIH or VIL; IOH 50 µA; TA 25°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "HIGH Level Output Voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 4.4,
          "typ": null,
          "max": null,
          "conditions": "VCC 4.5V; VIN=VIH or VIL; IOH 50 µA; TA -40 to 85°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "HIGH Level Output Voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 2.58,
          "typ": null,
          "max": null,
          "conditions": "VCC 3.0V; IOH 4 mA; TA 25°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "HIGH Level Output Voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 2.48,
          "typ": null,
          "max": null,
          "conditions": "VCC 3.0V; IOH 4 mA; TA -40 to 85°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "HIGH Level Output Voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 3.94,
          "typ": null,
          "max": null,
          "conditions": "VCC 4.5V; IOH 8 mA; TA 25°C",
          "source_page": 4,
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        },
        {
          "name": "HIGH Level Output Voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 3.8,
          "typ": null,
          "max": null,
          "conditions": "VCC 4.5V; IOH 8 mA; TA -40 to 85°C",
          "source_page": 4,
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        {
          "name": "LOW Level Output Voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0,
          "max": 0.1,
          "conditions": "VCC 2.0V; VIN=VIH or VIL; IOL 50 µA; TA 25°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "LOW Level Output Voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.1,
          "conditions": "VCC 2.0V; VIN=VIH or VIL; IOL 50 µA; TA -40 to 85°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "LOW Level Output Voltage",
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          "kind": "electrical",
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          "min": null,
          "typ": null,
          "max": 0.36,
          "conditions": "VCC 3.0V; IOL 4 mA; TA 25°C",
          "source_page": 4,
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        {
          "name": "LOW Level Output Voltage",
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          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.44,
          "conditions": "VCC 3.0V; IOL 4 mA; TA -40 to 85°C",
          "source_page": 4,
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        },
        {
          "name": "3-STATE Output Off-State Current",
          "symbol": "IOZ",
          "kind": "electrical",
          "unit": "µA",
          "min": -0.25,
          "typ": null,
          "max": 0.25,
          "conditions": "VCC 5.5V; VIN=VIH or VIL; VOUT=VCC or GND; TA 25°C",
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        {
          "name": "3-STATE Output Off-State Current",
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          "typ": null,
          "max": 2.5,
          "conditions": "VCC 5.5V; VIN=VIH or VIL; VOUT=VCC or GND; TA -40 to 85°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input Leakage Current",
          "symbol": "IIN",
          "kind": "electrical",
          "unit": "µA",
          "min": -0.1,
          "typ": null,
          "max": 0.1,
          "conditions": "VCC 0 to 5.5V; VIN=5.5V or GND; TA 25°C",
          "source_page": 4,
          "source": "datasheet"
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          "name": "Input Leakage Current",
          "symbol": "IIN",
          "kind": "electrical",
          "unit": "µA",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "VCC 0 to 5.5V; VIN=5.5V or GND; 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": 4,
          "conditions": "VCC 5.5V; VIN=VCC or GND; TA 25°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Quiescent Supply Current",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 40,
          "conditions": "VCC 5.5V; VIN=VCC or GND; TA -40 to 85°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Quiet Output Maximum Dynamic VOL",
          "symbol": "VOLP",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.6,
          "max": 0.9,
          "conditions": "VCC 5.0V; CL 50 pF; TA 25°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Quiet Output Minimum Dynamic VOL",
          "symbol": "VOLV",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.6,
          "max": 0.9,
          "conditions": "VCC 5.0V; CL 50 pF; TA 25°C",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "Minimum HIGH Level Dynamic Input Voltage",
          "symbol": "VIHD",
          "kind": "electrical",
          "unit": "V",
          "min": 3.5,
          "typ": null,
          "max": null,
          "conditions": "VCC 5.0V; CL 50 pF",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Maximum HIGH Level Dynamic Input Voltage",
          "symbol": "VILD",
          "kind": "electrical",
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          "min": null,
          "typ": null,
          "max": 1.5,
          "conditions": "VCC 5.0V; CL 50 pF",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Propagation Delay Time",
          "symbol": "tPLH, tPHL",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 5.8,
          "max": 8.4,
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