SN74ABT543ADWR

{
  "slug": "sn74abt543adwr",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Buffers, Drivers, Receivers, Transceivers, SOIC-24. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic",
    "sn74abt543adwr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sn74abt543adwr.kicad_sym",
    "sn74abt543adwr.kicad_mod",
    "sn74abt543adwr.glb",
    "sn74abt543adwr.step",
    "sn74abt543adwr.lbr",
    "docs/hero.png",
    "docs/sn74abt543adwr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sn74abt543adwr-hero.glb",
    "sn74abt543adwr-hero.overlay.json"
  ],
  "component": {
    "mpn": "SN74ABT543ADWR",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-24",
    "pin_count": 24,
    "category": "Logic",
    "subcategory": "Buffers, Drivers, Receivers, Transceivers",
    "datasheet": "https://www.ti.com/cn/lit/gpn/sn74abt543a",
    "parts": {
      "symbol": "sn74abt543adwr.kicad_sym",
      "footprint": "sn74abt543adwr.kicad_mod",
      "model_3d": "sn74abt543adwr-hero.glb",
      "model_3d_plain": "sn74abt543adwr.glb",
      "model_3d_step": "sn74abt543adwr-etched.step",
      "model_3d_step_plain": "sn74abt543adwr.step",
      "lbr": "sn74abt543adwr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2862418",
      "digikey": "296-14669-2-ND",
      "mouser": "595-SN74ABT543ADWR"
    },
    "distributor_check": {
      "checked_at": "2026-10-11T10:56:27Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-14669-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-SN74ABT543ADWR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "LEBA",
        "type": "input",
        "description": "B-to-A latch enable; when LEBA is low with CEBA low the B-to-A latches are transparent, and a low-to-high transition puts them in storage mode."
      },
      {
        "number": "2",
        "name": "OEBA",
        "type": "input",
        "description": "B-to-A output enable; the A outputs are active only when CEBA and OEBA are both low, and OE should be tied to VCC through a pullup resistor to keep the outputs high-impedance during power up or power down."
      },
      {
        "number": "3",
        "name": "A1",
        "type": "bidirectional",
        "description": "A-side 3-state data port, bit 1, which feeds the A-to-B latches and is driven by the B-to-A path when enabled."
      },
      {
        "number": "4",
        "name": "A2",
        "type": "bidirectional",
        "description": "A-side 3-state data port, bit 2, which feeds the A-to-B latches and is driven by the B-to-A path when enabled."
      },
      {
        "number": "5",
        "name": "A3",
        "type": "bidirectional",
        "description": "A-side 3-state data port, bit 3, which feeds the A-to-B latches and is driven by the B-to-A path when enabled."
      },
      {
        "number": "6",
        "name": "A4",
        "type": "bidirectional",
        "description": "A-side 3-state data port, bit 4, which feeds the A-to-B latches and is driven by the B-to-A path when enabled."
      },
      {
        "number": "7",
        "name": "A5",
        "type": "bidirectional",
        "description": "A-side 3-state data port, bit 5, which feeds the A-to-B latches and is driven by the B-to-A path when enabled."
      },
      {
        "number": "8",
        "name": "A6",
        "type": "bidirectional",
        "description": "A-side 3-state data port, bit 6, which feeds the A-to-B latches and is driven by the B-to-A path when enabled."
      },
      {
        "number": "9",
        "name": "A7",
        "type": "bidirectional",
        "description": "A-side 3-state data port, bit 7, which feeds the A-to-B latches and is driven by the B-to-A path when enabled."
      },
      {
        "number": "10",
        "name": "A8",
        "type": "bidirectional",
        "description": "A-side 3-state data port, bit 8, which feeds the A-to-B latches and is driven by the B-to-A path when enabled."
      },
      {
        "number": "11",
        "name": "CEAB",
        "type": "input",
        "description": "A-to-B enable; must be low to enter data from A or to output data from B."
      },
      {
        "number": "12",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device."
      },
      {
        "number": "13",
        "name": "OEAB",
        "type": "input",
        "description": "A-to-B output enable; with CEAB and OEAB both low, the 3-state B outputs are active, and OE should be tied to VCC through a pullup resistor to keep outputs high-impedance during power up or power down."
      },
      {
        "number": "14",
        "name": "LEAB",
        "type": "input",
        "description": "A-to-B latch enable; when LEAB and CEAB are low the A-to-B latches are transparent, and a low-to-high transition of LEAB puts the A latches in storage mode."
      },
      {
        "number": "15",
        "name": "B8",
        "type": "bidirectional",
        "description": "B-side 3-state data port, bit 8, which drives the B outputs when CEAB and OEAB are both low."
      },
      {
        "number": "16",
        "name": "B7",
        "type": "bidirectional",
        "description": "B-side 3-state data port, bit 7, which drives the B outputs when CEAB and OEAB are both low."
      },
      {
        "number": "17",
        "name": "B6",
        "type": "bidirectional",
        "description": "B-side 3-state data port, bit 6, which drives the B outputs when CEAB and OEAB are both low."
      },
      {
        "number": "18",
        "name": "B5",
        "type": "bidirectional",
        "description": "B-side 3-state data port, bit 5, which drives the B outputs when CEAB and OEAB are both low."
      },
      {
        "number": "19",
        "name": "B4",
        "type": "bidirectional",
        "description": "B-side 3-state data port, bit 4, which drives the B outputs when CEAB and OEAB are both low."
      },
      {
        "number": "20",
        "name": "B3",
        "type": "bidirectional",
        "description": "B-side 3-state data port, bit 3, which drives the B outputs when CEAB and OEAB are both low."
      },
      {
        "number": "21",
        "name": "B2",
        "type": "bidirectional",
        "description": "B-side 3-state data port, bit 2, which drives the B outputs when CEAB and OEAB are both low."
      },
      {
        "number": "22",
        "name": "B1",
        "type": "bidirectional",
        "description": "B-side 3-state data port, bit 1, which drives the B outputs when CEAB and OEAB are both low."
      },
      {
        "number": "23",
        "name": "CEBA",
        "type": "input",
        "description": "B-to-A enable; must be low to enter data from B or to output data from A."
      },
      {
        "number": "24",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage, recommended operating range 4.5 V to 5.5 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 pin-name list in the text extraction for pins 13-24 is in a different order from the printed nam; The datasheet does not explicitly give a direction for the A and B ports; they are typed bidirection"
        ],
        "pages_sent": 20,
        "cost_usd": 0.0858,
        "at": "2026-10-11T10:56:08"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/sn74abt543a",
        "pages": 20,
        "sha256": "cd4defbd194ff8d2",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 24,
        "described": 24,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
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        "file": "sn74abt543adwr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          10.3,
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          2.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "4b0d20f82f5b0124fecfe11c941274a3c865a30f7baee8b8fadd7df55972d4cd",
        "checked": "2026-10-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sn74abt543adwr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "f8661536573da1ded1c0947f32e1d506150cc13b9eccb185c8e9ecd229172661",
        "checked": "2026-10-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}