74VHC245PW

{
  "schema_version": 1,
  "type": "component",
  "slug": "74vhc245pw",
  "title": "74VHC245PW",
  "brief": "Nexperia Buffer/Driver/Transceiver, TSSOP-20. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "logic",
    "74vhc245pw"
  ],
  "component": {
    "mpn": "74VHC245PW",
    "manufacturer": "Nexperia",
    "package": "TSSOP-20",
    "pin_count": 20,
    "category": "Logic",
    "subcategory": "Buffer/Driver/Transceiver",
    "datasheet": "https://assets.nexperia.com/documents/data-sheet/74VHC245PW.pdf",
    "parts": {
      "symbol": "74vhc245pw.kicad_sym",
      "footprint": "74vhc245pw.kicad_mod",
      "model_3d": "74vhc245pw-etched.glb",
      "model_3d_plain": "74vhc245pw.glb",
      "model_3d_step": "74vhc245pw-etched.step",
      "model_3d_step_plain": "74vhc245pw.step",
      "lbr": "74vhc245pw.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "DIR",
        "type": "input",
        "description": "Direction control input. When DIR=LOW, data flows from Bn to An; when DIR=HIGH, data flows from An to Bn (with OE=LOW). Schmitt-trigger input; accepts voltages higher than VCC."
      },
      {
        "number": "2",
        "name": "A0",
        "type": "bidirectional",
        "description": "Data input/output, bus A bit 0. Direction is controlled by DIR; outputs 3-state when OE is HIGH."
      },
      {
        "number": "3",
        "name": "A1",
        "type": "bidirectional",
        "description": "Data input/output, bus A bit 1. Direction is controlled by DIR; outputs 3-state when OE is HIGH."
      },
      {
        "number": "4",
        "name": "A2",
        "type": "bidirectional",
        "description": "Data input/output, bus A bit 2. Direction is controlled by DIR; outputs 3-state when OE is HIGH."
      },
      {
        "number": "5",
        "name": "A3",
        "type": "bidirectional",
        "description": "Data input/output, bus A bit 3. Direction is controlled by DIR; outputs 3-state when OE is HIGH."
      },
      {
        "number": "6",
        "name": "A4",
        "type": "bidirectional",
        "description": "Data input/output, bus A bit 4. Direction is controlled by DIR; outputs 3-state when OE is HIGH."
      },
      {
        "number": "7",
        "name": "A5",
        "type": "bidirectional",
        "description": "Data input/output, bus A bit 5. Direction is controlled by DIR; outputs 3-state when OE is HIGH."
      },
      {
        "number": "8",
        "name": "A6",
        "type": "bidirectional",
        "description": "Data input/output, bus A bit 6. Direction is controlled by DIR; outputs 3-state when OE is HIGH."
      },
      {
        "number": "9",
        "name": "A7",
        "type": "bidirectional",
        "description": "Data input/output, bus A bit 7. Direction is controlled by DIR; outputs 3-state when OE is HIGH."
      },
      {
        "number": "10",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference, 0 V."
      },
      {
        "number": "11",
        "name": "B7",
        "type": "bidirectional",
        "description": "Data input/output, bus B bit 7. Direction is controlled by DIR; outputs 3-state when OE is HIGH."
      },
      {
        "number": "12",
        "name": "B6",
        "type": "bidirectional",
        "description": "Data input/output, bus B bit 6. Direction is controlled by DIR; outputs 3-state when OE is HIGH."
      },
      {
        "number": "13",
        "name": "B5",
        "type": "bidirectional",
        "description": "Data input/output, bus B bit 5. Direction is controlled by DIR; outputs 3-state when OE is HIGH."
      },
      {
        "number": "14",
        "name": "B4",
        "type": "bidirectional",
        "description": "Data input/output, bus B bit 4. Direction is controlled by DIR; outputs 3-state when OE is HIGH."
      },
      {
        "number": "15",
        "name": "B3",
        "type": "bidirectional",
        "description": "Data input/output, bus B bit 3. Direction is controlled by DIR; outputs 3-state when OE is HIGH."
      },
      {
        "number": "16",
        "name": "B2",
        "type": "bidirectional",
        "description": "Data input/output, bus B bit 2. Direction is controlled by DIR; outputs 3-state when OE is HIGH."
      },
      {
        "number": "17",
        "name": "B1",
        "type": "bidirectional",
        "description": "Data input/output, bus B bit 1. Direction is controlled by DIR; outputs 3-state when OE is HIGH."
      },
      {
        "number": "18",
        "name": "B0",
        "type": "bidirectional",
        "description": "Data input/output, bus B bit 0. Direction is controlled by DIR; outputs 3-state when OE is HIGH."
      },
      {
        "number": "19",
        "name": "OE",
        "type": "input",
        "description": "Output enable input, active LOW. When HIGH, both A and B outputs are placed in high-impedance (3-state) OFF-state, effectively isolating the buses."
      },
      {
        "number": "20",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage. Operating range 2.0 V to 5.5 V for 74VHC245; absolute max +7.0 V."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://assets.nexperia.com/documents/data-sheet/74VHC245PW.pdf",
        "pages": 16,
        "sha256": "cffe9d1b2f02d399",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 20,
        "described": 20,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "logic": {
      "family_id": "74VHC245",
      "logic_family": "74VHC",
      "function_code": "245",
      "function_class": "Transceiver",
      "function_name": "Octal Bus Transceiver, 3-State",
      "manufacturer": null,
      "is_specialty": false
    },
    "models_3d": [
      {
        "file": "74vhc245pw.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          6.5,
          1.2
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "97339947f3a7196470ec2f1d9f9b92bb2fc2ab66ad53be0cf105192585ef3c9a",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "74vhc245pw-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          6.5,
          1.2
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "3f6b18f6a1ef672c58a419e76c007e376bdb67977477d9bc5c2707415e22ea1a",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Nexperia",
      "Package": "TSSOP-20",
      "Category": "Logic",
      "Pins": "20"
    }
  },
  "variants": [
    {
      "mpn": "74VHC245PW",
      "kind": "packaging"
    },
    {
      "mpn": "74VHC245PWD",
      "kind": "packaging"
    },
    {
      "mpn": "74VHC245PWBQ",
      "kind": "packaging"
    }
  ],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "74vhc245pw"
  ],
  "discovery_pitch": "74VHC245PW (Nexperia) 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",
    "74vhc245pw.kicad_sym",
    "74vhc245pw.kicad_mod",
    "74vhc245pw.glb",
    "74vhc245pw.step",
    "74vhc245pw.lbr",
    "docs/hero.png",
    "docs/74vhc245pw-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-24T15:18:26.415Z"
}