74LVXC3245MTCX

{
  "schema_version": 1,
  "type": "component",
  "slug": "74lvxc3245mtcx",
  "title": "74LVXC3245MTCX",
  "brief": "onsemi Buffer/Driver/Transceiver, TSSOP-24. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "logic",
    "74lvxc3245mtcx"
  ],
  "component": {
    "mpn": "74LVXC3245MTCX",
    "manufacturer": "onsemi",
    "package": "TSSOP-24",
    "pin_count": 24,
    "category": "Logic",
    "subcategory": "Buffer/Driver/Transceiver",
    "datasheet": "https://www.onsemi.com/pdf/datasheet/74lvxc3245mtcx-d.pdf",
    "parts": {
      "symbol": "74lvxc3245mtcx.kicad_sym",
      "footprint": "74lvxc3245mtcx.kicad_mod",
      "model_3d": "74lvxc3245mtcx-etched.glb",
      "model_3d_plain": "74lvxc3245mtcx.glb",
      "model_3d_step": "74lvxc3245mtcx-etched.step",
      "model_3d_step_plain": "74lvxc3245mtcx.step",
      "lbr": "74lvxc3245mtcx.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "VCCA",
        "type": "power_in",
        "description": "A-side supply. Dedicated 3 V rail (2.7 V to 3.6 V recommended) that powers the A-port I/O buffers."
      },
      {
        "number": "2",
        "name": "T/R",
        "type": "input",
        "description": "Transmit/Receive direction control. HIGH transmits data from bus A to bus B; LOW receives data from bus B to bus A. TTL-compatible input."
      },
      {
        "number": "3",
        "name": "A0",
        "type": "bidirectional",
        "description": "Side A bit 0. Bidirectional 3 V I/O; acts as input when T/R=LOW and OE=LOW, or as 3-STATE output when T/R=HIGH and OE=LOW."
      },
      {
        "number": "4",
        "name": "A1",
        "type": "bidirectional",
        "description": "Side A bit 1. Bidirectional 3 V I/O port pin."
      },
      {
        "number": "5",
        "name": "A2",
        "type": "bidirectional",
        "description": "Side A bit 2. Bidirectional 3 V I/O port pin."
      },
      {
        "number": "6",
        "name": "A3",
        "type": "bidirectional",
        "description": "Side A bit 3. Bidirectional 3 V I/O port pin."
      },
      {
        "number": "7",
        "name": "A4",
        "type": "bidirectional",
        "description": "Side A bit 4. Bidirectional 3 V I/O port pin."
      },
      {
        "number": "8",
        "name": "A5",
        "type": "bidirectional",
        "description": "Side A bit 5. Bidirectional 3 V I/O port pin."
      },
      {
        "number": "9",
        "name": "A6",
        "type": "bidirectional",
        "description": "Side A bit 6. Bidirectional 3 V I/O port pin."
      },
      {
        "number": "10",
        "name": "A7",
        "type": "bidirectional",
        "description": "Side A bit 7. Bidirectional 3 V I/O port pin."
      },
      {
        "number": "11",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference (0 V). Tie all GND pins to the board ground plane."
      },
      {
        "number": "12",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference (0 V). Tie all GND pins to the board ground plane."
      },
      {
        "number": "13",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference (0 V). Tie all GND pins to the board ground plane."
      },
      {
        "number": "14",
        "name": "B7",
        "type": "bidirectional",
        "description": "Side B bit 7. Bidirectional VCCB-level I/O (3 V to 5 V) that tracks VCCB."
      },
      {
        "number": "15",
        "name": "B6",
        "type": "bidirectional",
        "description": "Side B bit 6. Bidirectional VCCB-level I/O (3 V to 5 V)."
      },
      {
        "number": "16",
        "name": "B5",
        "type": "bidirectional",
        "description": "Side B bit 5. Bidirectional VCCB-level I/O (3 V to 5 V)."
      },
      {
        "number": "17",
        "name": "B4",
        "type": "bidirectional",
        "description": "Side B bit 4. Bidirectional VCCB-level I/O (3 V to 5 V)."
      },
      {
        "number": "18",
        "name": "B3",
        "type": "bidirectional",
        "description": "Side B bit 3. Bidirectional VCCB-level I/O (3 V to 5 V)."
      },
      {
        "number": "19",
        "name": "B2",
        "type": "bidirectional",
        "description": "Side B bit 2. Bidirectional VCCB-level I/O (3 V to 5 V)."
      },
      {
        "number": "20",
        "name": "B1",
        "type": "bidirectional",
        "description": "Side B bit 1. Bidirectional VCCB-level I/O (3 V to 5 V)."
      },
      {
        "number": "21",
        "name": "B0",
        "type": "bidirectional",
        "description": "Side B bit 0. Bidirectional VCCB-level I/O (3 V to 5 V)."
      },
      {
        "number": "22",
        "name": "OE",
        "type": "input",
        "description": "Active-LOW output enable. When LOW, the transceiver is enabled in the direction set by T/R. When HIGH, both A and B ports go to 3-STATE (HIGH-Z) and VCCB is allowed to float - required for PCMCIA card insertion/removal."
      },
      {
        "number": "23",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection. Leave unconnected or tie as convenient."
      },
      {
        "number": "24",
        "name": "VCCB",
        "type": "power_in",
        "description": "B-side supply. Accepts 3 V to 5.5 V (recommended 3.0 V to 5.5 V); sets the B-port logic level. May float when OE is HIGH (PCMCIA hot-swap support)."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.onsemi.com/pdf/datasheet/74lvxc3245mtcx-d.pdf",
        "pages": 11,
        "sha256": "a8f33038b93e3f2a",
        "source_tier": "mfr"
      },
      "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"
    },
    "logic": {
      "family_id": "74LVXC3245",
      "logic_family": "74LVXC",
      "function_code": "3245",
      "function_class": "Transceiver",
      "function_name": "Octal Bus Transceiver, 3.3 V to 5 V Translating",
      "manufacturer": null,
      "is_specialty": false
    },
    "models_3d": [
      {
        "file": "74lvxc3245mtcx.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          7.8,
          0.97
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "706322f42d9793ebf28d5b80100a68bfa8769998a00b78acadf7af937fc1454f",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "74lvxc3245mtcx-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          7.8,
          0.97
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "6f7503358ba50ae25d2d55f48b4fd677fc8cdbca86c731c1de1b4a74f2fe63f8",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "onsemi",
      "Package": "TSSOP-24",
      "Category": "Logic",
      "Pins": "24"
    }
  },
  "variants": [
    {
      "mpn": "74LVXC3245MTCX",
      "kind": "packaging"
    },
    {
      "mpn": "74LVXC3245MTCXWM",
      "kind": "packaging"
    },
    {
      "mpn": "74LVXC3245MTCXQSC",
      "kind": "packaging"
    }
  ],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "74lvxc3245mtcx"
  ],
  "discovery_pitch": "74LVXC3245MTCX (onsemi) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "74lvxc3245mtcx.kicad_sym",
    "74lvxc3245mtcx.kicad_mod",
    "74lvxc3245mtcx.glb",
    "74lvxc3245mtcx.step",
    "74lvxc3245mtcx.lbr",
    "docs/hero.png",
    "docs/74lvxc3245mtcx-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-24T15:17:46.275Z"
}