SN74LVTH543PWR

{
  "slug": "sn74lvth543pwr",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Buffers, Drivers, Receivers, Transceivers, TSSOP-24. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic",
    "sn74lvth543pwr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
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    "sn74lvth543pwr.step",
    "sn74lvth543pwr.lbr",
    "docs/hero.png",
    "docs/sn74lvth543pwr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
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  "component": {
    "mpn": "SN74LVTH543PWR",
    "manufacturer": "Texas Instruments",
    "package": "TSSOP-24",
    "pin_count": 24,
    "category": "Logic",
    "subcategory": "Buffers, Drivers, Receivers, Transceivers",
    "datasheet": "https://www.ti.com/lit/ds/symlink/sn74lvth543.pdf",
    "parts": {
      "symbol": "sn74lvth543pwr.kicad_sym",
      "footprint": "sn74lvth543pwr.kicad_mod",
      "model_3d": "sn74lvth543pwr-hero.glb",
      "model_3d_plain": "sn74lvth543pwr.glb",
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      "lbr": "sn74lvth543pwr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2676171",
      "digikey": "296-8732-2-ND",
      "mouser": "595-SN74LVTH543PWR"
    },
    "distributor_check": {
      "checked_at": "2026-10-07T22:31:31Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-8732-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-SN74LVTH543PWR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "LEBA",
        "type": "input",
        "description": "B-to-A latch enable: with CEBA low and LEBA low the B-to-A latches are transparent, and a low-to-high transition of LEBA stores the data (datasheet, page 2)."
      },
      {
        "number": "2",
        "name": "OEBA",
        "type": "input",
        "description": "B-to-A output enable: with CEBA and OEBA both low the A outputs are active, and OE should be tied to VCC through a pullup resistor to keep outputs high-impedance above 1.5 V during power-up/power-down."
      },
      {
        "number": "3",
        "name": "A1",
        "type": "bidirectional",
        "description": "A-port data bit 1 of the octal transceiver; 3-state output that is driven when OEBA and CEBA are low, with bus-hold on the input and 5-V tolerant inputs with VCC at 3.3 V."
      },
      {
        "number": "4",
        "name": "A2",
        "type": "bidirectional",
        "description": "A-port data bit 2 of the octal transceiver; 3-state output that is driven when OEBA and CEBA are low, with bus-hold on the input and 5-V tolerant inputs with VCC at 3.3 V."
      },
      {
        "number": "5",
        "name": "A3",
        "type": "bidirectional",
        "description": "A-port data bit 3 of the octal transceiver; 3-state output that is driven when OEBA and CEBA are low, with bus-hold on the input and 5-V tolerant inputs with VCC at 3.3 V."
      },
      {
        "number": "6",
        "name": "A4",
        "type": "bidirectional",
        "description": "A-port data bit 4 of the octal transceiver; 3-state output that is driven when OEBA and CEBA are low, with bus-hold on the input and 5-V tolerant inputs with VCC at 3.3 V."
      },
      {
        "number": "7",
        "name": "A5",
        "type": "bidirectional",
        "description": "A-port data bit 5 of the octal transceiver; 3-state output that is driven when OEBA and CEBA are low, with bus-hold on the input and 5-V tolerant inputs with VCC at 3.3 V."
      },
      {
        "number": "8",
        "name": "A6",
        "type": "bidirectional",
        "description": "A-port data bit 6 of the octal transceiver; 3-state output that is driven when OEBA and CEBA are low, with bus-hold on the input and 5-V tolerant inputs with VCC at 3.3 V."
      },
      {
        "number": "9",
        "name": "A7",
        "type": "bidirectional",
        "description": "A-port data bit 7 of the octal transceiver; 3-state output that is driven when OEBA and CEBA are low, with bus-hold on the input and 5-V tolerant inputs with VCC at 3.3 V."
      },
      {
        "number": "10",
        "name": "A8",
        "type": "bidirectional",
        "description": "A-port data bit 8 of the octal transceiver; 3-state output that is driven when OEBA and CEBA are low, with bus-hold on the input and 5-V tolerant inputs with VCC at 3.3 V."
      },
      {
        "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 reflect the A latch data."
      },
      {
        "number": "14",
        "name": "LEAB",
        "type": "input",
        "description": "A-to-B latch enable: with CEAB and LEAB low the A-to-B latches are transparent, and a low-to-high transition of LEAB stores the data."
      },
      {
        "number": "15",
        "name": "B8",
        "type": "bidirectional",
        "description": "B-port data bit 8 of the octal transceiver; 3-state output that is driven when OEAB and CEAB are low, with bus-hold on the input and 5-V tolerant inputs with VCC at 3.3 V."
      },
      {
        "number": "16",
        "name": "B7",
        "type": "bidirectional",
        "description": "B-port data bit 7 of the octal transceiver; 3-state output that is driven when OEAB and CEAB are low, with bus-hold on the input and 5-V tolerant inputs with VCC at 3.3 V."
      },
      {
        "number": "17",
        "name": "B6",
        "type": "bidirectional",
        "description": "B-port data bit 6 of the octal transceiver; 3-state output that is driven when OEAB and CEAB are low, with bus-hold on the input and 5-V tolerant inputs with VCC at 3.3 V."
      },
      {
        "number": "18",
        "name": "B5",
        "type": "bidirectional",
        "description": "B-port data bit 5 of the octal transceiver; 3-state output that is driven when OEAB and CEAB are low, with bus-hold on the input and 5-V tolerant inputs with VCC at 3.3 V."
      },
      {
        "number": "19",
        "name": "B4",
        "type": "bidirectional",
        "description": "B-port data bit 4 of the octal transceiver; 3-state output that is driven when OEAB and CEAB are low, with bus-hold on the input and 5-V tolerant inputs with VCC at 3.3 V."
      },
      {
        "number": "20",
        "name": "B3",
        "type": "bidirectional",
        "description": "B-port data bit 3 of the octal transceiver; 3-state output that is driven when OEAB and CEAB are low, with bus-hold on the input and 5-V tolerant inputs with VCC at 3.3 V."
      },
      {
        "number": "21",
        "name": "B2",
        "type": "bidirectional",
        "description": "B-port data bit 2 of the octal transceiver; 3-state output that is driven when OEAB and CEAB are low, with bus-hold on the input and 5-V tolerant inputs with VCC at 3.3 V."
      },
      {
        "number": "22",
        "name": "B1",
        "type": "bidirectional",
        "description": "B-port data bit 1 of the octal transceiver; 3-state output that is driven when OEAB and CEAB are low, with bus-hold on the input and 5-V tolerant inputs with VCC at 3.3 V."
      },
      {
        "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 is 2.7 V to 3.6 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 TOP VIEW text extraction is garbled for the right-hand column. Pin numbers for OEAB (13), LEAB (; Per-bit A and B descriptions are generic because the datasheet gives the same 3-state/bus-hold behav; The datasheet gives a shared pinout for the DB, DGV, DW, NS, and PW packages. Only the PW (TSSOP-24)"
        ],
        "pages_sent": 19,
        "cost_usd": 0.0928,
        "at": "2026-10-07T22:31:10"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/sn74lvth543.pdf",
        "pages": 19,
        "sha256": "16482118de43e719",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 24,
        "described": 24,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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      "footprint": "viewers/footprint.html"
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        "units": "mm",
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        "seat": "z = 0",
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        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "706322f42d9793ebf28d5b80100a68bfa8769998a00b78acadf7af937fc1454f",
        "checked": "2026-10-07",
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        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  }
}