AiP74LVC244TA20.TR

{
  "slug": "aip74lvc244ta20-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": [
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  "component": {
    "mpn": "AiP74LVC244TA20.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/12ecbafde3f3c38447a1edd40bb26d0d.pdf",
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    "distributor_links": {
      "lcsc": "C5139322"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T19:09:32Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
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      "mouser": {
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    "pins": [
      {
        "number": "1",
        "name": "1OE",
        "type": "input",
        "description": "Output enable input for the first buffer section, active low; a high level puts outputs 1Y0 to 1Y3 in high impedance."
      },
      {
        "number": "2",
        "name": "1A0",
        "type": "input",
        "description": "Data input of the first buffer section, which the datasheet states can be driven by 3.3 V or 5.0 V devices and accepts input voltages up to 5.5 V."
      },
      {
        "number": "3",
        "name": "2Y0",
        "type": "tri_state",
        "description": "Bus output of the second buffer section with three-state capability, where the output voltage in the three-state mode may be up to 5.5 V."
      },
      {
        "number": "4",
        "name": "1A1",
        "type": "input",
        "description": "Data input of the first buffer section, which the datasheet states can be driven by 3.3 V or 5.0 V devices and accepts input voltages up to 5.5 V."
      },
      {
        "number": "5",
        "name": "2Y1",
        "type": "tri_state",
        "description": "Bus output of the second buffer section with three-state capability, where the output voltage in the three-state mode may be up to 5.5 V."
      },
      {
        "number": "6",
        "name": "1A2",
        "type": "input",
        "description": "Data input of the first buffer section, which the datasheet states can be driven by 3.3 V or 5.0 V devices and accepts input voltages up to 5.5 V."
      },
      {
        "number": "7",
        "name": "2Y2",
        "type": "tri_state",
        "description": "Bus output of the second buffer section with three-state capability, where the output voltage in the three-state mode may be up to 5.5 V."
      },
      {
        "number": "8",
        "name": "1A3",
        "type": "input",
        "description": "Data input of the first buffer section, which the datasheet states can be driven by 3.3 V or 5.0 V devices and accepts input voltages up to 5.5 V."
      },
      {
        "number": "9",
        "name": "2Y3",
        "type": "tri_state",
        "description": "Bus output of the second buffer section with three-state capability, where the output voltage in the three-state mode may be up to 5.5 V."
      },
      {
        "number": "10",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference, 0 V."
      },
      {
        "number": "11",
        "name": "2A3",
        "type": "input",
        "description": "Data input of the second buffer section, which the datasheet states can be driven by 3.3 V or 5.0 V devices and accepts input voltages up to 5.5 V."
      },
      {
        "number": "12",
        "name": "1Y3",
        "type": "tri_state",
        "description": "Bus output of the first buffer section with three-state capability, where the output voltage in the three-state mode may be up to 5.5 V."
      },
      {
        "number": "13",
        "name": "2A2",
        "type": "input",
        "description": "Data input of the second buffer section, which the datasheet states can be driven by 3.3 V or 5.0 V devices and accepts input voltages up to 5.5 V."
      },
      {
        "number": "14",
        "name": "1Y2",
        "type": "tri_state",
        "description": "Bus output of the first buffer section with three-state capability, where the output voltage in the three-state mode may be up to 5.5 V."
      },
      {
        "number": "15",
        "name": "2A1",
        "type": "input",
        "description": "Data input of the second buffer section, which the datasheet states can be driven by 3.3 V or 5.0 V devices and accepts input voltages up to 5.5 V."
      },
      {
        "number": "16",
        "name": "1Y1",
        "type": "tri_state",
        "description": "Bus output of the first buffer section with three-state capability, where the output voltage in the three-state mode may be up to 5.5 V."
      },
      {
        "number": "17",
        "name": "2A0",
        "type": "input",
        "description": "Data input of the second buffer section, which the datasheet states can be driven by 3.3 V or 5.0 V devices and accepts input voltages up to 5.5 V."
      },
      {
        "number": "18",
        "name": "1Y0",
        "type": "tri_state",
        "description": "Bus output of the first buffer section with three-state capability, where the output voltage in the three-state mode may be up to 5.5 V."
      },
      {
        "number": "19",
        "name": "2OE",
        "type": "input",
        "description": "Output enable input for the second buffer section, active low; a high level puts outputs 2Y0 to 2Y3 in high impedance."
      },
      {
        "number": "20",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage; the recommended range is 1.65 V to 3.6 V with functional operation specified from 1.2 V to 3.6 V, and the absolute maximum rating is 6.5 V."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
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        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
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        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The TSSOP20 pinout is taken from the section 2.3 pin table (page 6), which the datasheet applies to ; The datasheet's pin table labels the bus outputs as 'bus output' without an explicit type. They are ; The datasheet's pin table does not state a per-pin voltage limit beyond the device-wide recommended "
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        "pages_sent": 16,
        "cost_usd": 0.0615,
        "at": "2026-10-22T19:09:14"
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        "pages": 16,
        "sha256": "f780f1e269ebb87e",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 20,
        "described": 20,
        "cites_pages": true,
        "refuses_to_fabricate": true
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