AIP74HC244TA20.TR

{
  "slug": "aip74hc244ta20-tr",
  "version": "0.1.0",
  "type": "component",
  "description": "Wuxi I-core Elec Buffer/Driver/Transceiver, TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic ics",
    "aip74hc244ta20.tr",
    "factory-2.0.0",
    "extractor-text"
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  "dependencies": {},
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    "aip74hc244ta20-tr.step",
    "aip74hc244ta20-tr.lbr",
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  "component": {
    "mpn": "AIP74HC244TA20.TR",
    "manufacturer": "Wuxi I-core Elec",
    "package": "TSSOP-20",
    "pin_count": 20,
    "category": "Logic ICs",
    "subcategory": "Buffer/Driver/Transceiver",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/5a90cc217eb72181407a401679ec513e.pdf",
    "parts": {
      "symbol": "aip74hc244ta20-tr.kicad_sym",
      "footprint": "aip74hc244ta20-tr.kicad_mod",
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      "model_3d_step": "aip74hc244ta20-tr-etched.step",
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      "lbr": "aip74hc244ta20-tr.lbr"
    },
    "distributor_links": {
      "lcsc": "C5196954"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T21:06:49Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "1OE",
        "type": "input",
        "description": "Active-low output enable for the 1Yn three-state outputs; a high level on this pin forces those outputs into the high-impedance state."
      },
      {
        "number": "2",
        "name": "1A0",
        "type": "input",
        "description": "Data input of the first 4-bit buffer; the input has a clamp diode, so it can be driven above VCC through a current-limiting resistor."
      },
      {
        "number": "3",
        "name": "2Y0",
        "type": "tri_state",
        "description": "Non-inverting three-state bus output of the second 4-bit buffer, high-impedance when its output enable is high."
      },
      {
        "number": "4",
        "name": "1A1",
        "type": "input",
        "description": "Data input of the first 4-bit buffer; the input has a clamp diode, so it can be driven above VCC through a current-limiting resistor."
      },
      {
        "number": "5",
        "name": "2Y1",
        "type": "tri_state",
        "description": "Non-inverting three-state bus output of the second 4-bit buffer, high-impedance when its output enable is high."
      },
      {
        "number": "6",
        "name": "1A2",
        "type": "input",
        "description": "Data input of the first 4-bit buffer; the input has a clamp diode, so it can be driven above VCC through a current-limiting resistor."
      },
      {
        "number": "7",
        "name": "2Y2",
        "type": "tri_state",
        "description": "Non-inverting three-state bus output of the second 4-bit buffer, high-impedance when its output enable is high."
      },
      {
        "number": "8",
        "name": "1A3",
        "type": "input",
        "description": "Data input of the first 4-bit buffer; the input has a clamp diode, so it can be driven above VCC through a current-limiting resistor."
      },
      {
        "number": "9",
        "name": "2Y3",
        "type": "tri_state",
        "description": "Non-inverting three-state bus output of the second 4-bit buffer, high-impedance when its output enable is high."
      },
      {
        "number": "10",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference, 0 V."
      },
      {
        "number": "11",
        "name": "2A3",
        "type": "input",
        "description": "Data input of the second 4-bit buffer; the input has a clamp diode, so it can be driven above VCC through a current-limiting resistor."
      },
      {
        "number": "12",
        "name": "1Y3",
        "type": "tri_state",
        "description": "Non-inverting three-state bus output of the first 4-bit buffer, high-impedance when its output enable is high."
      },
      {
        "number": "13",
        "name": "2A2",
        "type": "input",
        "description": "Data input of the second 4-bit buffer; the input has a clamp diode, so it can be driven above VCC through a current-limiting resistor."
      },
      {
        "number": "14",
        "name": "1Y2",
        "type": "tri_state",
        "description": "Non-inverting three-state bus output of the first 4-bit buffer, high-impedance when its output enable is high."
      },
      {
        "number": "15",
        "name": "2A1",
        "type": "input",
        "description": "Data input of the second 4-bit buffer; the input has a clamp diode, so it can be driven above VCC through a current-limiting resistor."
      },
      {
        "number": "16",
        "name": "1Y1",
        "type": "tri_state",
        "description": "Non-inverting three-state bus output of the first 4-bit buffer, high-impedance when its output enable is high."
      },
      {
        "number": "17",
        "name": "2A0",
        "type": "input",
        "description": "Data input of the second 4-bit buffer; the input has a clamp diode, so it can be driven above VCC through a current-limiting resistor."
      },
      {
        "number": "18",
        "name": "1Y0",
        "type": "tri_state",
        "description": "Non-inverting three-state bus output of the first 4-bit buffer, high-impedance when its output enable is high."
      },
      {
        "number": "19",
        "name": "2OE",
        "type": "input",
        "description": "Active-low output enable for the 2Yn three-state outputs; a high level on this pin forces those outputs into the high-impedance state."
      },
      {
        "number": "20",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage; the AiP74HC244 is rated 2.0 V to 6.0 V and the AiP74HCT244 4.5 V to 5.5 V, with an absolute maximum of 7.0 V."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "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": [
          "extractor flagged: The datasheet says each OE input controls four of the three-state outputs but does not explicitly ma; The datasheet gives one pin table (page 5) that applies to DIP20, SOP20 and TSSOP20 alike; no TSSOP-"
        ],
        "pages_sent": 18,
        "cost_usd": 0.0722,
        "at": "2026-10-22T21:06:27"
      },
      "datasheet": {
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        "pages": 18,
        "sha256": "8a752d8af77d4618",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 20,
        "described": 20,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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}