74ACT244SC

{
  "slug": "74act244sc",
  "version": "0.1.0",
  "type": "component",
  "description": "onsemi Buffers / Drivers, SOIC-20-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic ics",
    "74act244sc",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "74act244sc.kicad_sym",
    "74act244sc.kicad_mod",
    "74act244sc.glb",
    "74act244sc.step",
    "74act244sc.lbr",
    "docs/hero.png",
    "docs/74act244sc-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "74act244sc-hero.glb",
    "74act244sc-hero.overlay.json",
    "74act244sc-etched.glb"
  ],
  "component": {
    "mpn": "74ACT244SC",
    "manufacturer": "onsemi",
    "package": "SOIC-20-300mil",
    "pin_count": 20,
    "category": "Logic ICs",
    "subcategory": "Buffers / Drivers",
    "datasheet": "https://www.onsemi.com/pdf/datasheet/74act244sc-d.pdf",
    "parts": {
      "symbol": "74act244sc.kicad_sym",
      "footprint": "74act244sc.kicad_mod",
      "model_3d": "74act244sc-hero.glb",
      "model_3d_plain": "74act244sc-etched.glb",
      "model_3d_step": "74act244sc-etched.step",
      "model_3d_step_plain": "74act244sc.step",
      "lbr": "74act244sc.lbr"
    },
    "distributor_links": {
      "lcsc": "C906682",
      "digikey": "74ACT244SC-ND",
      "mouser": "512-74ACT244SC"
    },
    "distributor_check": {
      "checked_at": "2026-10-31T18:43:23Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "74ACT244SC-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "512-74ACT244SC",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "OE1",
        "type": "input",
        "description": "3-STATE output enable input for outputs O0 to O3; outputs are enabled when OE1 is low and high-impedance when high."
      },
      {
        "number": "2",
        "name": "I0",
        "type": "input",
        "description": "Data input to the octal buffer; ACT244 inputs are TTL-compatible per the datasheet features."
      },
      {
        "number": "3",
        "name": "O4",
        "type": "tri_state",
        "description": "3-STATE buffer output controlled by OE2; sources and sinks 24 mA per the datasheet features."
      },
      {
        "number": "4",
        "name": "I1",
        "type": "input",
        "description": "Data input to the octal buffer; ACT244 inputs are TTL-compatible per the datasheet features."
      },
      {
        "number": "5",
        "name": "O5",
        "type": "tri_state",
        "description": "3-STATE buffer output controlled by OE2; sources and sinks 24 mA per the datasheet features."
      },
      {
        "number": "6",
        "name": "I2",
        "type": "input",
        "description": "Data input to the octal buffer; ACT244 inputs are TTL-compatible per the datasheet features."
      },
      {
        "number": "7",
        "name": "O6",
        "type": "tri_state",
        "description": "3-STATE buffer output controlled by OE2; sources and sinks 24 mA per the datasheet features."
      },
      {
        "number": "8",
        "name": "I3",
        "type": "input",
        "description": "Data input to the octal buffer; ACT244 inputs are TTL-compatible per the datasheet features."
      },
      {
        "number": "9",
        "name": "O7",
        "type": "tri_state",
        "description": "3-STATE buffer output controlled by OE2; sources and sinks 24 mA per the datasheet features."
      },
      {
        "number": "10",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin for the device."
      },
      {
        "number": "11",
        "name": "I7",
        "type": "input",
        "description": "Data input to the octal buffer; ACT244 inputs are TTL-compatible per the datasheet features."
      },
      {
        "number": "12",
        "name": "O3",
        "type": "tri_state",
        "description": "3-STATE buffer output controlled by OE1; sources and sinks 24 mA per the datasheet features."
      },
      {
        "number": "13",
        "name": "I6",
        "type": "input",
        "description": "Data input to the octal buffer; ACT244 inputs are TTL-compatible per the datasheet features."
      },
      {
        "number": "14",
        "name": "O2",
        "type": "tri_state",
        "description": "3-STATE buffer output controlled by OE1; sources and sinks 24 mA per the datasheet features."
      },
      {
        "number": "15",
        "name": "I5",
        "type": "input",
        "description": "Data input to the octal buffer; ACT244 inputs are TTL-compatible per the datasheet features."
      },
      {
        "number": "16",
        "name": "O1",
        "type": "tri_state",
        "description": "3-STATE buffer output controlled by OE1; sources and sinks 24 mA per the datasheet features."
      },
      {
        "number": "17",
        "name": "I4",
        "type": "input",
        "description": "Data input to the octal buffer; ACT244 inputs are TTL-compatible per the datasheet features."
      },
      {
        "number": "18",
        "name": "O0",
        "type": "tri_state",
        "description": "3-STATE buffer output controlled by OE1; sources and sinks 24 mA per the datasheet features."
      },
      {
        "number": "19",
        "name": "OE2",
        "type": "input",
        "description": "3-STATE output enable input for outputs O4 to O7; outputs are enabled when OE2 is low and high-impedance when high."
      },
      {
        "number": "20",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply pin; recommended supply is 4.5 to 5.5 V for ACT devices (2.0 to 6.0 V for AC devices)."
      }
    ],
    "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 hint SOIC-20-300mil matches CASE 751BJ-01, but the ordering table lists 74ACT244SC as SOIC-20W, ",
          "5/20 pins cited to the wrong page (name found elsewhere): ['10:GND@p2', '11:I7@p2', '13:I6@p2', '17:I4@p2']"
        ],
        "pages_sent": 11,
        "cost_usd": 0.0251,
        "at": "2026-10-31T18:43:10"
      },
      "datasheet": {
        "url": "https://www.onsemi.com/pdf/datasheet/74act244sc-d.pdf",
        "pages": 11,
        "sha256": "99ad504f29a09b78",
        "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"
    },
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          10.3,
          12.8,
          2.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "59a10b341e6972b31d81802a048060326da627d8b92dcf4263064f4f62ec808e",
        "checked": "2026-10-31",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "74act244sc-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
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          2.75
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        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "a84a70ed72e355ffcc5bbc435c4ba68d881771e6811d32dc8df725cf6395c04f",
        "checked": "2026-10-31",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}