74ACT244SCX

{
  "slug": "74act244scx",
  "version": "0.1.0",
  "type": "component",
  "description": "ON Semiconductor Logic-Buffers, Drivers, Receivers, Transceivers, SOIC-20-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic ics",
    "74act244scx",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
    "74act244scx.kicad_sym",
    "74act244scx.kicad_mod",
    "74act244scx.glb",
    "74act244scx.step",
    "74act244scx.lbr",
    "docs/hero.png",
    "docs/74act244scx-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "74act244scx-hero.glb",
    "74act244scx-hero.overlay.json",
    "74act244scx-etched.glb"
  ],
  "component": {
    "mpn": "74ACT244SCX",
    "manufacturer": "ON Semiconductor",
    "package": "SOIC-20-300mil",
    "pin_count": 20,
    "category": "Logic ICs",
    "subcategory": "Logic-Buffers, Drivers, Receivers, Transceivers",
    "datasheet": "https://www.onsemi.com/pdf/datasheet/74act244scx-d.pdf",
    "parts": {
      "symbol": "74act244scx.kicad_sym",
      "footprint": "74act244scx.kicad_mod",
      "model_3d": "74act244scx-hero.glb",
      "model_3d_plain": "74act244scx-etched.glb",
      "model_3d_step": "74act244scx-etched.step",
      "model_3d_step_plain": "74act244scx.step",
      "lbr": "74act244scx.lbr"
    },
    "distributor_links": {
      "lcsc": "C98875",
      "digikey": "74ACT244SCXTR-ND",
      "mouser": "512-74ACT244SCX"
    },
    "distributor_check": {
      "checked_at": "2026-10-29T17:39:47Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "74ACT244SCXTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "512-74ACT244SCX",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "OE1",
        "type": "input",
        "description": "Active-low 3-STATE output enable input for outputs O0-O3 (pins 18, 16, 14, 12), which are high impedance when OE1 is HIGH."
      },
      {
        "number": "2",
        "name": "I0",
        "type": "input",
        "description": "Data input that drives output O0 (pin 18) when OE1 is LOW; ACT244 inputs are TTL-compatible."
      },
      {
        "number": "3",
        "name": "O4",
        "type": "tri_state",
        "description": "3-STATE output following input I4 when OE2 is LOW and high impedance when OE2 is HIGH, sourcing/sinking 24mA."
      },
      {
        "number": "4",
        "name": "I1",
        "type": "input",
        "description": "Data input that drives output O1 (pin 16) when OE1 is LOW; ACT244 inputs are TTL-compatible."
      },
      {
        "number": "5",
        "name": "O5",
        "type": "tri_state",
        "description": "3-STATE output following input I5 when OE2 is LOW and high impedance when OE2 is HIGH, sourcing/sinking 24mA."
      },
      {
        "number": "6",
        "name": "I2",
        "type": "input",
        "description": "Data input that drives output O2 (pin 14) when OE1 is LOW; ACT244 inputs are TTL-compatible."
      },
      {
        "number": "7",
        "name": "O6",
        "type": "tri_state",
        "description": "3-STATE output following input I6 when OE2 is LOW and high impedance when OE2 is HIGH, sourcing/sinking 24mA."
      },
      {
        "number": "8",
        "name": "I3",
        "type": "input",
        "description": "Data input that drives output O3 (pin 12) when OE1 is LOW; ACT244 inputs are TTL-compatible."
      },
      {
        "number": "9",
        "name": "O7",
        "type": "tri_state",
        "description": "3-STATE output following input I7 when OE2 is LOW and high impedance when OE2 is HIGH, sourcing/sinking 24mA."
      },
      {
        "number": "10",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin."
      },
      {
        "number": "11",
        "name": "I7",
        "type": "input",
        "description": "Data input that drives output O7 (pin 9) when OE2 is LOW; ACT244 inputs are TTL-compatible."
      },
      {
        "number": "12",
        "name": "O3",
        "type": "tri_state",
        "description": "3-STATE output following input I3 when OE1 is LOW and high impedance when OE1 is HIGH, sourcing/sinking 24mA."
      },
      {
        "number": "13",
        "name": "I6",
        "type": "input",
        "description": "Data input that drives output O6 (pin 7) when OE2 is LOW; ACT244 inputs are TTL-compatible."
      },
      {
        "number": "14",
        "name": "O2",
        "type": "tri_state",
        "description": "3-STATE output following input I2 when OE1 is LOW and high impedance when OE1 is HIGH, sourcing/sinking 24mA."
      },
      {
        "number": "15",
        "name": "I5",
        "type": "input",
        "description": "Data input that drives output O5 (pin 5) when OE2 is LOW; ACT244 inputs are TTL-compatible."
      },
      {
        "number": "16",
        "name": "O1",
        "type": "tri_state",
        "description": "3-STATE output following input I1 when OE1 is LOW and high impedance when OE1 is HIGH, sourcing/sinking 24mA."
      },
      {
        "number": "17",
        "name": "I4",
        "type": "input",
        "description": "Data input that drives output O4 (pin 3) when OE2 is LOW; ACT244 inputs are TTL-compatible."
      },
      {
        "number": "18",
        "name": "O0",
        "type": "tri_state",
        "description": "3-STATE output following input I0 when OE1 is LOW and high impedance when OE1 is HIGH, sourcing/sinking 24mA."
      },
      {
        "number": "19",
        "name": "OE2",
        "type": "input",
        "description": "Active-low 3-STATE output enable input for outputs O4-O7 (pins 3, 5, 7, 9), which are high impedance when OE2 is HIGH."
      },
      {
        "number": "20",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply pin; the ACT device is recommended for 4.5V to 5.5V operation."
      }
    ],
    "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": "text+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": 14,
        "cost_usd": 0.1117,
        "at": "2026-10-29T17:39:38"
      },
      "datasheet": {
        "url": "https://www.onsemi.com/pdf/datasheet/74act244scx-d.pdf",
        "pages": 14,
        "sha256": "5cd9e6c2a435a73f",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 20,
        "described": 20,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
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        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
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        "sha256": "59a10b341e6972b31d81802a048060326da627d8b92dcf4263064f4f62ec808e",
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  }
}