SN74HC244DTR

{
  "schema_version": 1,
  "type": "component",
  "slug": "sn74hc244dtr",
  "title": "SN74HC244DTR",
  "brief": "XBLW Buffers, Drivers, Receivers, Transceivers, SOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "logic",
    "sn74hc244dtr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "SN74HC244DTR",
    "manufacturer": "XBLW",
    "package": "SOP-20",
    "pin_count": 20,
    "category": "Logic",
    "subcategory": "Buffers, Drivers, Receivers, Transceivers",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590906027041255424",
    "parts": {
      "symbol": "sn74hc244dtr.kicad_sym",
      "footprint": "sn74hc244dtr.kicad_mod",
      "model_3d": "sn74hc244dtr-hero.glb",
      "model_3d_plain": "sn74hc244dtr.glb",
      "model_3d_step": "sn74hc244dtr-etched.step",
      "model_3d_step_plain": "sn74hc244dtr.step",
      "lbr": "sn74hc244dtr.lbr"
    },
    "distributor_links": {
      "lcsc": "C18723515"
    },
    "distributor_check": {
      "checked_at": "2026-10-09T11:47:14Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "1OE",
        "type": "input",
        "description": "Output enable input for the 1Y outputs, active LOW; a HIGH puts them in high-impedance OFF-state."
      },
      {
        "number": "2",
        "name": "1A0",
        "type": "input",
        "description": "Data input 1A0, buffered to 1Y0 (pin 18)."
      },
      {
        "number": "3",
        "name": "2Y0",
        "type": "output",
        "description": "Bus output 2Y0, 3-state, follows 2A0 (pin 17)."
      },
      {
        "number": "4",
        "name": "1A1",
        "type": "input",
        "description": "Data input 1A1, buffered to 1Y1 (pin 16)."
      },
      {
        "number": "5",
        "name": "2Y1",
        "type": "output",
        "description": "Bus output 2Y1, 3-state, follows 2A1 (pin 15)."
      },
      {
        "number": "6",
        "name": "1A2",
        "type": "input",
        "description": "Data input 1A2, buffered to 1Y2 (pin 14)."
      },
      {
        "number": "7",
        "name": "2Y2",
        "type": "output",
        "description": "Bus output 2Y2, 3-state, follows 2A2 (pin 13)."
      },
      {
        "number": "8",
        "name": "1A3",
        "type": "input",
        "description": "Data input 1A3, buffered to 1Y3 (pin 12)."
      },
      {
        "number": "9",
        "name": "2Y3",
        "type": "output",
        "description": "Bus output 2Y3, 3-state, follows 2A3 (pin 11)."
      },
      {
        "number": "10",
        "name": "GND",
        "type": "power_in",
        "description": "Ground (0 V)."
      },
      {
        "number": "11",
        "name": "2A3",
        "type": "input",
        "description": "Data input 2A3, buffered to 2Y3 (pin 9)."
      },
      {
        "number": "12",
        "name": "1Y3",
        "type": "output",
        "description": "Bus output 1Y3, 3-state, follows 1A3 (pin 8)."
      },
      {
        "number": "13",
        "name": "2A2",
        "type": "input",
        "description": "Data input 2A2, buffered to 2Y2 (pin 7)."
      },
      {
        "number": "14",
        "name": "1Y2",
        "type": "output",
        "description": "Bus output 1Y2, 3-state, follows 1A2 (pin 6)."
      },
      {
        "number": "15",
        "name": "2A1",
        "type": "input",
        "description": "Data input 2A1, buffered to 2Y1 (pin 5)."
      },
      {
        "number": "16",
        "name": "1Y1",
        "type": "output",
        "description": "Bus output 1Y1, 3-state, follows 1A1 (pin 4)."
      },
      {
        "number": "17",
        "name": "2A0",
        "type": "input",
        "description": "Data input 2A0, buffered to 2Y0 (pin 3)."
      },
      {
        "number": "18",
        "name": "1Y0",
        "type": "output",
        "description": "Bus output 1Y0, 3-state, follows 1A0 (pin 2)."
      },
      {
        "number": "19",
        "name": "2OE",
        "type": "input",
        "description": "Output enable input for the 2Y outputs, active LOW; a HIGH puts them in high-impedance OFF-state."
      },
      {
        "number": "20",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage, recommended 2.0 V to 6.0 V (absolute maximum 7.0 V)."
      }
    ],
    "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": 0.3365,
        "at": "2026-10-09T11:41:16"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590906027041255424",
        "pages": 17,
        "sha256": "00448a2ff21f3d25",
        "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": "sn74hc244dtr.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,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "a2ae45768d99bf1c7f6d4aed144b8bb5961ead16a150bbf8c0d4567b42977bc9",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sn74hc244dtr-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": "ce6ac79861214ac82397d8efa1b5afc6ad78ff1183822a5211d154b2d944a6cb",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "XBLW",
      "Package": "SOP-20",
      "Category": "Logic",
      "Pins": "20"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "sn74hc244dtr"
  ],
  "discovery_pitch": "SN74HC244DTR (XBLW) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sn74hc244dtr.kicad_sym",
    "sn74hc244dtr.kicad_mod",
    "sn74hc244dtr.glb",
    "sn74hc244dtr.step",
    "sn74hc244dtr.lbr",
    "docs/hero.png",
    "docs/sn74hc244dtr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sn74hc244dtr-hero.glb",
    "sn74hc244dtr-hero.overlay.json"
  ],
  "visibility": {
    "public": true
  }
}