74HC245TS

{
  "slug": "74hc245ts",
  "version": "0.1.1",
  "type": "component",
  "description": "GR Buffer/Driver/Transceiver, TSSOP-20. Pinout settled in review by an AI reviewer against the manufacturer's datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic ics",
    "74hc245ts",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "74hc245ts.kicad_sym",
    "74hc245ts.kicad_mod",
    "74hc245ts.glb",
    "74hc245ts.step",
    "74hc245ts.lbr",
    "docs/hero.png",
    "docs/74hc245ts-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "74hc245ts-hero.glb",
    "74hc245ts-hero.overlay.json",
    "74hc245ts-etched.glb"
  ],
  "component": {
    "mpn": "74HC245TS",
    "manufacturer": "GR",
    "package": "TSSOP-20",
    "pin_count": 20,
    "category": "Logic ICs",
    "subcategory": "Buffer/Driver/Transceiver",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/b89608b1c938f7e79153c66b2cc8ff8a.pdf",
    "parts": {
      "symbol": "74hc245ts.kicad_sym",
      "footprint": "74hc245ts.kicad_mod",
      "model_3d": "74hc245ts-hero.glb",
      "model_3d_plain": "74hc245ts-etched.glb",
      "model_3d_step": "74hc245ts-etched.step",
      "model_3d_step_plain": "74hc245ts.step",
      "lbr": "74hc245ts.lbr"
    },
    "distributor_links": {
      "lcsc": "C19818861"
    },
    "distributor_check": {
      "checked_at": "2026-11-05T23:57:42Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "DIR",
        "type": "input",
        "description": "Direction control for the 8-bit bus transceiver: per the truth table, DIR high transfers data from A to B and DIR low transfers data from B to A, with OE# enabling the outputs."
      },
      {
        "number": "2",
        "name": "A0",
        "type": "bidirectional",
        "description": "Parallel data input/output A0 of the 8-bit bidirectional bus; direction is set by DIR and the pin goes high-impedance when OE# is high, with a single-pin output current limit of \u00b135 mA."
      },
      {
        "number": "3",
        "name": "A1",
        "type": "bidirectional",
        "description": "Parallel data input/output A1 of the 8-bit bidirectional bus; direction is set by DIR and the pin goes high-impedance when OE# is high, with a single-pin output current limit of \u00b135 mA."
      },
      {
        "number": "4",
        "name": "A2",
        "type": "bidirectional",
        "description": "Parallel data input/output A2 of the 8-bit bidirectional bus; direction is set by DIR and the pin goes high-impedance when OE# is high, with a single-pin output current limit of \u00b135 mA."
      },
      {
        "number": "5",
        "name": "A3",
        "type": "bidirectional",
        "description": "Parallel data input/output A3 of the 8-bit bidirectional bus; direction is set by DIR and the pin goes high-impedance when OE# is high, with a single-pin output current limit of \u00b135 mA."
      },
      {
        "number": "6",
        "name": "A4",
        "type": "bidirectional",
        "description": "Parallel data input/output A4 of the 8-bit bidirectional bus; direction is set by DIR and the pin goes high-impedance when OE# is high, with a single-pin output current limit of \u00b135 mA."
      },
      {
        "number": "7",
        "name": "A5",
        "type": "bidirectional",
        "description": "Parallel data input/output A5 of the 8-bit bidirectional bus; direction is set by DIR and the pin goes high-impedance when OE# is high, with a single-pin output current limit of \u00b135 mA."
      },
      {
        "number": "8",
        "name": "A6",
        "type": "bidirectional",
        "description": "Parallel data input/output A6 of the 8-bit bidirectional bus; direction is set by DIR and the pin goes high-impedance when OE# is high, with a single-pin output current limit of \u00b135 mA."
      },
      {
        "number": "9",
        "name": "A7",
        "type": "bidirectional",
        "description": "Parallel data input/output A7 of the 8-bit bidirectional bus; direction is set by DIR and the pin goes high-impedance when OE# is high, with a single-pin output current limit of \u00b135 mA."
      },
      {
        "number": "10",
        "name": "GND",
        "type": "power_in",
        "description": "Power ground reference for the device."
      },
      {
        "number": "11",
        "name": "B7",
        "type": "bidirectional",
        "description": "Parallel data input/output B7 of the 8-bit bidirectional bus; direction is set by DIR and the pin goes high-impedance when OE# is high, with a single-pin output current limit of \u00b135 mA."
      },
      {
        "number": "12",
        "name": "B6",
        "type": "bidirectional",
        "description": "Parallel data input/output B6 of the 8-bit bidirectional bus; direction is set by DIR and the pin goes high-impedance when OE# is high, with a single-pin output current limit of \u00b135 mA."
      },
      {
        "number": "13",
        "name": "B5",
        "type": "bidirectional",
        "description": "Parallel data input/output B5 of the 8-bit bidirectional bus; direction is set by DIR and the pin goes high-impedance when OE# is high, with a single-pin output current limit of \u00b135 mA."
      },
      {
        "number": "14",
        "name": "B4",
        "type": "bidirectional",
        "description": "Parallel data input/output B4 of the 8-bit bidirectional bus; direction is set by DIR and the pin goes high-impedance when OE# is high, with a single-pin output current limit of \u00b135 mA."
      },
      {
        "number": "15",
        "name": "B3",
        "type": "bidirectional",
        "description": "Parallel data input/output B3 of the 8-bit bidirectional bus; direction is set by DIR and the pin goes high-impedance when OE# is high, with a single-pin output current limit of \u00b135 mA."
      },
      {
        "number": "16",
        "name": "B2",
        "type": "bidirectional",
        "description": "Parallel data input/output B2 of the 8-bit bidirectional bus; direction is set by DIR and the pin goes high-impedance when OE# is high, with a single-pin output current limit of \u00b135 mA."
      },
      {
        "number": "17",
        "name": "B1",
        "type": "bidirectional",
        "description": "Parallel data input/output B1 of the 8-bit bidirectional bus; direction is set by DIR and the pin goes high-impedance when OE# is high, with a single-pin output current limit of \u00b135 mA."
      },
      {
        "number": "18",
        "name": "B0",
        "type": "bidirectional",
        "description": "Parallel data input/output B0 of the 8-bit bidirectional bus; direction is set by DIR and the pin goes high-impedance when OE# is high, with a single-pin output current limit of \u00b135 mA."
      },
      {
        "number": "19",
        "name": "OE#",
        "type": "input",
        "description": "Output enable control, active low: when low the A and B outputs are enabled per DIR, and when high both ports are set to high-impedance (Z)."
      },
      {
        "number": "20",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply pin; the operating supply range is 2 V to 6 V and the absolute maximum is -0.5 V to 6.5 V."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/b89608b1c938f7e79153c66b2cc8ff8a.pdf",
        "pages": 9,
        "sha256": "6afae021f7cb64e5",
        "source_tier": "lcsc"
      },
      "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"
    },
    "models_3d": [
      {
        "file": "74hc245ts.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": "2026-11-05",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "74hc245ts-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": "4b19ea11849365e710eadf68a85cf835488082d5776e4c52913a9f930c94901e",
        "checked": "2026-11-05",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}