SN74HC245DTR

{
  "slug": "sn74hc245dtr",
  "version": "0.1.0",
  "type": "component",
  "description": "XBLW Buffers, Drivers, Receivers, Transceivers, SOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic",
    "sn74hc245dtr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sn74hc245dtr.kicad_sym",
    "sn74hc245dtr.kicad_mod",
    "sn74hc245dtr.glb",
    "sn74hc245dtr.step",
    "sn74hc245dtr.lbr",
    "docs/hero.png",
    "docs/sn74hc245dtr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sn74hc245dtr-hero.glb",
    "sn74hc245dtr-hero.overlay.json"
  ],
  "component": {
    "mpn": "SN74HC245DTR",
    "manufacturer": "XBLW",
    "package": "SOP-20",
    "pin_count": 20,
    "category": "Logic",
    "subcategory": "Buffers, Drivers, Receivers, Transceivers",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590906026915291136",
    "parts": {
      "symbol": "sn74hc245dtr.kicad_sym",
      "footprint": "sn74hc245dtr.kicad_mod",
      "model_3d": "sn74hc245dtr-hero.glb",
      "model_3d_plain": "sn74hc245dtr.glb",
      "model_3d_step": "sn74hc245dtr-etched.step",
      "model_3d_step_plain": "sn74hc245dtr.step",
      "lbr": "sn74hc245dtr.lbr"
    },
    "distributor_links": {
      "lcsc": "C18723517"
    },
    "distributor_check": {
      "checked_at": "2026-10-09T06:17:52Z",
      "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 input that sets the transfer direction between the A and B buses."
      },
      {
        "number": "2",
        "name": "A0",
        "type": "bidirectional",
        "description": "Data input/output A0."
      },
      {
        "number": "3",
        "name": "A1",
        "type": "bidirectional",
        "description": "Data input/output A1."
      },
      {
        "number": "4",
        "name": "A2",
        "type": "bidirectional",
        "description": "Data input/output A2."
      },
      {
        "number": "5",
        "name": "A3",
        "type": "bidirectional",
        "description": "Data input/output A3."
      },
      {
        "number": "6",
        "name": "A4",
        "type": "bidirectional",
        "description": "Data input/output A4."
      },
      {
        "number": "7",
        "name": "A5",
        "type": "bidirectional",
        "description": "Data input/output A5."
      },
      {
        "number": "8",
        "name": "A6",
        "type": "bidirectional",
        "description": "Data input/output A6."
      },
      {
        "number": "9",
        "name": "A7",
        "type": "bidirectional",
        "description": "Data input/output A7."
      },
      {
        "number": "10",
        "name": "GND",
        "type": "power_in",
        "description": "Ground (0 V)."
      },
      {
        "number": "11",
        "name": "B7",
        "type": "bidirectional",
        "description": "Data input/output B7."
      },
      {
        "number": "12",
        "name": "B6",
        "type": "bidirectional",
        "description": "Data input/output B6."
      },
      {
        "number": "13",
        "name": "B5",
        "type": "bidirectional",
        "description": "Data input/output B5."
      },
      {
        "number": "14",
        "name": "B4",
        "type": "bidirectional",
        "description": "Data input/output B4."
      },
      {
        "number": "15",
        "name": "B3",
        "type": "bidirectional",
        "description": "Data input/output B3."
      },
      {
        "number": "16",
        "name": "B2",
        "type": "bidirectional",
        "description": "Data input/output B2."
      },
      {
        "number": "17",
        "name": "B1",
        "type": "bidirectional",
        "description": "Data input/output B1."
      },
      {
        "number": "18",
        "name": "B0",
        "type": "bidirectional",
        "description": "Data input/output B0."
      },
      {
        "number": "19",
        "name": "OE",
        "type": "input",
        "description": "Output enable input, active LOW; a HIGH puts the outputs in the high-impedance OFF-state."
      },
      {
        "number": "20",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "vision",
        "consensus_model": "claude-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 12,
        "cost_usd": 0.1982,
        "at": "2026-10-09T06:13:33"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590906026915291136",
        "pages": 16,
        "sha256": "4cb6b08ab9ecf30c",
        "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": "sn74hc245dtr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          10.26,
          12.8,
          2.65
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "a435d7fb8a49db6605a45d7e87d3a09c5edd37f034a38d099a85727451cde50e",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sn74hc245dtr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          10.26,
          12.8,
          2.65
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "63eb02c86c28344eb11a20dbf63badbb3c323dcb27aa3bea0498cd564c3bf1d3",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}