CY74FCT245ATQCT

{
  "slug": "cy74fct245atqct",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Buffers, Drivers, Receivers, Transceivers, SSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic",
    "cy74fct245atqct",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "cy74fct245atqct.kicad_sym",
    "cy74fct245atqct.kicad_mod",
    "cy74fct245atqct.glb",
    "cy74fct245atqct.step",
    "cy74fct245atqct.lbr",
    "docs/hero.png",
    "docs/cy74fct245atqct-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "cy74fct245atqct-hero.glb",
    "cy74fct245atqct-hero.overlay.json",
    "cy74fct245atqct-etched.glb"
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  "component": {
    "mpn": "CY74FCT245ATQCT",
    "manufacturer": "Texas Instruments",
    "package": "SSOP-20",
    "pin_count": 20,
    "category": "Logic",
    "subcategory": "Buffers, Drivers, Receivers, Transceivers",
    "datasheet": "https://www.ti.com/lit/ds/symlink/cy74fct245t.pdf",
    "parts": {
      "symbol": "cy74fct245atqct.kicad_sym",
      "footprint": "cy74fct245atqct.kicad_mod",
      "model_3d": "cy74fct245atqct-hero.glb",
      "model_3d_plain": "cy74fct245atqct-etched.glb",
      "model_3d_step": "cy74fct245atqct-etched.step",
      "model_3d_step_plain": "cy74fct245atqct.step",
      "lbr": "cy74fct245atqct.lbr"
    },
    "distributor_links": {
      "lcsc": "C202136",
      "digikey": "296-14575-2-ND",
      "mouser": "595-CY74FCT245ATQCT"
    },
    "distributor_check": {
      "checked_at": "2026-10-29T17:04:46Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-14575-2-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-CY74FCT245ATQCT",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "T/R",
        "type": "input",
        "description": "Transmit/receive input sets the data direction: high enables data flow from A ports to B ports, low enables B to A."
      },
      {
        "number": "2",
        "name": "A0",
        "type": "bidirectional",
        "description": "A-port bus I/O bit 0, a 3-state output that is placed in high impedance when OE is high and is protected from backflow when powered down via Ioff."
      },
      {
        "number": "3",
        "name": "A1",
        "type": "bidirectional",
        "description": "A-port bus I/O bit 1, a 3-state output that is placed in high impedance when OE is high and is protected from backflow when powered down via Ioff."
      },
      {
        "number": "4",
        "name": "A2",
        "type": "bidirectional",
        "description": "A-port bus I/O bit 2, a 3-state output that is placed in high impedance when OE is high and is protected from backflow when powered down via Ioff."
      },
      {
        "number": "5",
        "name": "A3",
        "type": "bidirectional",
        "description": "A-port bus I/O bit 3, a 3-state output that is placed in high impedance when OE is high and is protected from backflow when powered down via Ioff."
      },
      {
        "number": "6",
        "name": "A4",
        "type": "bidirectional",
        "description": "A-port bus I/O bit 4, a 3-state output that is placed in high impedance when OE is high and is protected from backflow when powered down via Ioff."
      },
      {
        "number": "7",
        "name": "A5",
        "type": "bidirectional",
        "description": "A-port bus I/O bit 5, a 3-state output that is placed in high impedance when OE is high and is protected from backflow when powered down via Ioff."
      },
      {
        "number": "8",
        "name": "A6",
        "type": "bidirectional",
        "description": "A-port bus I/O bit 6, a 3-state output that is placed in high impedance when OE is high and is protected from backflow when powered down via Ioff."
      },
      {
        "number": "9",
        "name": "A7",
        "type": "bidirectional",
        "description": "A-port bus I/O bit 7, a 3-state output that is placed in high impedance when OE is high and is protected from backflow when powered down via Ioff."
      },
      {
        "number": "10",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device."
      },
      {
        "number": "11",
        "name": "B7",
        "type": "bidirectional",
        "description": "B-port bus I/O bit 7, a 3-state output that is placed in high impedance when OE is high and is protected from backflow when powered down via Ioff."
      },
      {
        "number": "12",
        "name": "B6",
        "type": "bidirectional",
        "description": "B-port bus I/O bit 6, a 3-state output that is placed in high impedance when OE is high and is protected from backflow when powered down via Ioff."
      },
      {
        "number": "13",
        "name": "B5",
        "type": "bidirectional",
        "description": "B-port bus I/O bit 5, a 3-state output that is placed in high impedance when OE is high and is protected from backflow when powered down via Ioff."
      },
      {
        "number": "14",
        "name": "B4",
        "type": "bidirectional",
        "description": "B-port bus I/O bit 4, a 3-state output that is placed in high impedance when OE is high and is protected from backflow when powered down via Ioff."
      },
      {
        "number": "15",
        "name": "B3",
        "type": "bidirectional",
        "description": "B-port bus I/O bit 3, a 3-state output that is placed in high impedance when OE is high and is protected from backflow when powered down via Ioff."
      },
      {
        "number": "16",
        "name": "B2",
        "type": "bidirectional",
        "description": "B-port bus I/O bit 2, a 3-state output that is placed in high impedance when OE is high and is protected from backflow when powered down via Ioff."
      },
      {
        "number": "17",
        "name": "B1",
        "type": "bidirectional",
        "description": "B-port bus I/O bit 1, a 3-state output that is placed in high impedance when OE is high and is protected from backflow when powered down via Ioff."
      },
      {
        "number": "18",
        "name": "B0",
        "type": "bidirectional",
        "description": "B-port bus I/O bit 0, a 3-state output that is placed in high impedance when OE is high and is protected from backflow when powered down via Ioff."
      },
      {
        "number": "19",
        "name": "OE",
        "type": "input",
        "description": "Output enable: when high, disables both the A and B ports by putting them in the high-impedance state."
      },
      {
        "number": "20",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage; recommended range is 4.75 V to 5.25 V for the CY74FCT245AT, with all unused inputs held at VCC or GND."
      }
    ],
    "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 datasheet's SSOP/SOIC pin diagram text is extracted out of order, so pin-number-to-name assignme; The datasheet does not give a separate pinout for the DBQ outline; the 'P, Q, or SO package' top-vie; The pin 20 VCC description cites the supply range from the recommended operating conditions on page "
        ],
        "pages_sent": 21,
        "cost_usd": 0.0882,
        "at": "2026-10-29T17:04:31"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/cy74fct245t.pdf",
        "pages": 21,
        "sha256": "bb7c5082a5845ca6",
        "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"
    },
    "models_3d": [
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.2,
          8.7,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "f13262fece140c790280c9485c12f75a61c8e197e678764713ee7191b95d1eec",
        "checked": "2026-10-29",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cy74fct245atqct-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "5cdf465b1d67199c50c30c1bbadc7aac1122f101a23e4e0172cf4df70889225e",
        "checked": "2026-10-29",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ],
    "package_dims": {
      "package_code": "DBQ",
      "E1": {
        "nom_mm": 3.9,
        "range_mm": null
      },
      "E": {
        "nom_mm": 6.0,
        "range_mm": null
      },
      "e": {
        "nom_mm": 0.635,
        "range_mm": null
      },
      "source": "TI package designator DBQ (no drawing in the datasheet)",
      "model_check": {
        "file": "cy74fct245atqct.step",
        "verdict": "SKIP",
        "reasons": [
          "the datasheet dimensions give no height or body size to compare"
        ],
        "by": "factory/package_fit.py"
      }
    }
  }
}