SN74LV244ADBR

{
  "slug": "sn74lv244adbr",
  "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",
    "sn74lv244adbr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sn74lv244adbr.kicad_sym",
    "sn74lv244adbr.kicad_mod",
    "sn74lv244adbr.glb",
    "sn74lv244adbr.step",
    "sn74lv244adbr.lbr",
    "docs/hero.png",
    "docs/sn74lv244adbr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "component": {
    "mpn": "SN74LV244ADBR",
    "manufacturer": "Texas Instruments",
    "package": "SSOP-20",
    "pin_count": 20,
    "category": "Logic",
    "subcategory": "Buffers, Drivers, Receivers, Transceivers",
    "datasheet": "https://www.ti.com/lit/ds/symlink/sn74lv244adbr.pdf",
    "parts": {
      "symbol": "sn74lv244adbr.kicad_sym",
      "footprint": "sn74lv244adbr.kicad_mod",
      "model_3d": "sn74lv244adbr-etched.glb",
      "model_3d_plain": "sn74lv244adbr.glb",
      "model_3d_step": "sn74lv244adbr-etched.step",
      "model_3d_step_plain": "sn74lv244adbr.step",
      "lbr": "sn74lv244adbr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2676031",
      "digikey": "296-3804-2-ND",
      "mouser": "595-SN74LV244ADBR"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T06:13:40Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-3804-2-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-SN74LV244ADBR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "1OE",
        "type": "input",
        "description": "Output enable for the first four-bit buffer section (1Y1 to 1Y4); the extracted text does not state the enable polarity."
      },
      {
        "number": "2",
        "name": "1A1",
        "type": "input",
        "description": "Data input to buffer 1 of the first section, which drives output 1Y1 when 1OE is enabled; absolute input voltage limits are -0.5 V to 7 V (page 4)."
      },
      {
        "number": "3",
        "name": "2Y4",
        "type": "output",
        "description": "Three-state output of buffer 4 of the second section, driven from 2A4; continuous output current is limited to ±35 mA for VO = 0 to VCC (page 4)."
      },
      {
        "number": "4",
        "name": "1A2",
        "type": "input",
        "description": "Data input to buffer 2 of the first section, which drives output 1Y2; absolute input voltage limits are -0.5 V to 7 V (page 4)."
      },
      {
        "number": "5",
        "name": "2Y3",
        "type": "output",
        "description": "Three-state output of buffer 3 of the second section, driven from 2A3; continuous output current is limited to ±35 mA for VO = 0 to VCC (page 4)."
      },
      {
        "number": "6",
        "name": "1A3",
        "type": "input",
        "description": "Data input to buffer 3 of the first section, which drives output 1Y3; absolute input voltage limits are -0.5 V to 7 V (page 4)."
      },
      {
        "number": "7",
        "name": "2Y2",
        "type": "output",
        "description": "Three-state output of buffer 2 of the second section, driven from 2A2; continuous output current is limited to ±35 mA for VO = 0 to VCC (page 4)."
      },
      {
        "number": "8",
        "name": "1A4",
        "type": "input",
        "description": "Data input to buffer 4 of the first section, which drives output 1Y4; absolute input voltage limits are -0.5 V to 7 V (page 4)."
      },
      {
        "number": "9",
        "name": "2Y1",
        "type": "output",
        "description": "Three-state output of buffer 1 of the second section, driven from 2A1; continuous output current is limited to ±35 mA for VO = 0 to VCC (page 4)."
      },
      {
        "number": "10",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin for the device."
      },
      {
        "number": "11",
        "name": "2A1",
        "type": "input",
        "description": "Data input to buffer 1 of the second section, which drives output 2Y1; absolute input voltage limits are -0.5 V to 7 V (page 4)."
      },
      {
        "number": "12",
        "name": "1Y4",
        "type": "output",
        "description": "Three-state output of buffer 4 of the first section, driven from 1A4; continuous output current is limited to ±35 mA for VO = 0 to VCC (page 4)."
      },
      {
        "number": "13",
        "name": "2A2",
        "type": "input",
        "description": "Data input to buffer 2 of the second section, which drives output 2Y2; absolute input voltage limits are -0.5 V to 7 V (page 4)."
      },
      {
        "number": "14",
        "name": "1Y3",
        "type": "output",
        "description": "Three-state output of buffer 3 of the first section, driven from 1A3; continuous output current is limited to ±35 mA for VO = 0 to VCC (page 4)."
      },
      {
        "number": "15",
        "name": "2A3",
        "type": "input",
        "description": "Data input to buffer 3 of the second section, which drives output 2Y3; absolute input voltage limits are -0.5 V to 7 V (page 4)."
      },
      {
        "number": "16",
        "name": "1Y2",
        "type": "output",
        "description": "Three-state output of buffer 2 of the first section, driven from 1A2; continuous output current is limited to ±35 mA for VO = 0 to VCC (page 4)."
      },
      {
        "number": "17",
        "name": "2A4",
        "type": "input",
        "description": "Data input to buffer 4 of the second section, which drives output 2Y4; absolute input voltage limits are -0.5 V to 7 V (page 4)."
      },
      {
        "number": "18",
        "name": "1Y1",
        "type": "output",
        "description": "Three-state output of buffer 1 of the first section, driven from 1A1; continuous output current is limited to ±35 mA for VO = 0 to VCC (page 4)."
      },
      {
        "number": "19",
        "name": "2OE",
        "type": "input",
        "description": "Output enable for the second four-bit buffer section (2Y1 to 2Y4); the extracted text does not state the enable polarity."
      },
      {
        "number": "20",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply pin; the device operates from 2 V to 5.5 V (page 1), and the absolute maximum supply is -0.5 V to 7 V (page 4)."
      }
    ],
    "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 extracted text gives only the pin names and the generic 'Output enable' label for 1OE and 2OE. I; The pin-to-function mapping (which input drives which output) comes from the logic diagram on page 1; The pin table on page 3 is shared by the DB, DGV, DW, NS, PW and DGS packages. The DB (SSOP-20) assi"
        ],
        "pages_sent": 8,
        "cost_usd": 0.0509,
        "at": "2026-10-18T06:08:38"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/sn74lv244adbr.pdf",
        "pages": 43,
        "sha256": "ee9a8c6b17f23c55",
        "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": [
      {
        "file": "sn74lv244adbr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5.3,
          10.2,
          1.98
        ],
        "zmin_mm": 0.02,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "6dff36ebd77080baba066b7aca3416ba1a817c310d24eec7f7cd42b41d1e0c8d",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sn74lv244adbr-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": 0.02,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "803bd2cabbedbe323b5d42809ae062007ff703c9ccbf414db78733cf749b075b",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}