CD74HC243M96

{
  "schema_version": 1,
  "type": "component",
  "slug": "cd74hc243m96",
  "title": "CD74HC243M96",
  "brief": "Texas Instruments Buffers, Drivers, Receivers, Transceivers, SOIC-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "logic",
    "cd74hc243m96",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "CD74HC243M96",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-14",
    "pin_count": 14,
    "category": "Logic",
    "subcategory": "Buffers, Drivers, Receivers, Transceivers",
    "datasheet": "https://www.ti.com/cn/lit/gpn/cd74hct243",
    "parts": {
      "symbol": "cd74hc243m96.kicad_sym",
      "footprint": "cd74hc243m96.kicad_mod",
      "model_3d": "cd74hc243m96-etched.glb",
      "model_3d_plain": "cd74hc243m96.glb",
      "model_3d_step": "cd74hc243m96-etched.step",
      "model_3d_step_plain": "cd74hc243m96.step",
      "lbr": "cd74hc243m96.lbr"
    },
    "distributor_links": {
      "lcsc": "C2863560"
    },
    "pins": [
      {
        "number": "1",
        "name": "OEB",
        "type": "input",
        "description": "Output-enable input for the B-port side; together with OEA it selects the data-flow direction (A to B or B to A) or places the I/O terminals in the high-impedance state per the truth table."
      },
      {
        "number": "2",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection."
      },
      {
        "number": "3",
        "name": "A0",
        "type": "bidirectional",
        "description": "Data I/O terminal for bus-transceiver channel 0 on the A side; acts as input or output (or high-Z) depending on the OEA/OEB control state."
      },
      {
        "number": "4",
        "name": "A1",
        "type": "bidirectional",
        "description": "Data I/O terminal for bus-transceiver channel 1 on the A side; acts as input or output (or high-Z) depending on the OEA/OEB control state."
      },
      {
        "number": "5",
        "name": "A2",
        "type": "bidirectional",
        "description": "Data I/O terminal for bus-transceiver channel 2 on the A side; acts as input or output (or high-Z) depending on the OEA/OEB control state."
      },
      {
        "number": "6",
        "name": "A3",
        "type": "bidirectional",
        "description": "Data I/O terminal for bus-transceiver channel 3 on the A side; acts as input or output (or high-Z) depending on the OEA/OEB control state."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Ground/supply return terminal."
      },
      {
        "number": "8",
        "name": "B3",
        "type": "bidirectional",
        "description": "Data I/O terminal for bus-transceiver channel 3 on the B side; acts as input or output (or high-Z) depending on the OEA/OEB control state."
      },
      {
        "number": "9",
        "name": "B2",
        "type": "bidirectional",
        "description": "Data I/O terminal for bus-transceiver channel 2 on the B side; acts as input or output (or high-Z) depending on the OEA/OEB control state."
      },
      {
        "number": "10",
        "name": "B1",
        "type": "bidirectional",
        "description": "Data I/O terminal for bus-transceiver channel 1 on the B side; acts as input or output (or high-Z) depending on the OEA/OEB control state."
      },
      {
        "number": "11",
        "name": "B0",
        "type": "bidirectional",
        "description": "Data I/O terminal for bus-transceiver channel 0 on the B side; acts as input or output (or high-Z) depending on the OEA/OEB control state."
      },
      {
        "number": "12",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection."
      },
      {
        "number": "13",
        "name": "OEA",
        "type": "input",
        "description": "Output-enable input for the A-port side; together with OEB it selects the data-flow direction (A to B or B to A) or places the I/O terminals in the high-impedance state per the truth table."
      },
      {
        "number": "14",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply voltage terminal, specified over 2V to 6V for HC types."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.2",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.2",
        "primary_model": "claude-sonnet-5",
        "primary_mode": "text+vision",
        "consensus_model": "claude-opus-4-8",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 24,
        "cost_usd": 0.7247,
        "at": "2026-09-22T21:00:25"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/cd74hct243",
        "pages": 24,
        "sha256": "40fb03b77b5d31c8",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 14,
        "described": 14,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "cd74hc243m96.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          8.7,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "3b9a775da256c8afcc28dcddfbc2eb3f266107fe61ce8446d96f2c52b6f44a70",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cd74hc243m96-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          8.7,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "8dc95aa4d773e1871568c8944e6f2bb5c98e3c56eedfd6c1456a83d29da6b054",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SOIC-14",
      "Category": "Logic",
      "Pins": "14"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "cd74hc243m96"
  ],
  "discovery_pitch": "CD74HC243M96 (Texas Instruments) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "cd74hc243m96.kicad_sym",
    "cd74hc243m96.kicad_mod",
    "cd74hc243m96.glb",
    "cd74hc243m96.step",
    "cd74hc243m96.lbr",
    "docs/hero.png",
    "docs/cd74hc243m96-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-24T18:53:50.589Z"
}