SN74ABT244AMDBREP

{
  "slug": "sn74abt244amdbrep",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Buffers, Drivers, Receivers, Transceivers, SSOP-20-208mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic",
    "sn74abt244amdbrep",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
    "sn74abt244amdbrep.kicad_sym",
    "sn74abt244amdbrep.kicad_mod",
    "sn74abt244amdbrep.glb",
    "sn74abt244amdbrep.step",
    "sn74abt244amdbrep.lbr",
    "docs/hero.png",
    "docs/sn74abt244amdbrep-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sn74abt244amdbrep-hero.glb",
    "sn74abt244amdbrep-hero.overlay.json"
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  "component": {
    "mpn": "SN74ABT244AMDBREP",
    "manufacturer": "Texas Instruments",
    "package": "SSOP-20-208mil",
    "pin_count": 20,
    "category": "Logic",
    "subcategory": "Buffers, Drivers, Receivers, Transceivers",
    "datasheet": "https://www.ti.com/cn/lit/gpn/sn74abt244a-ep",
    "parts": {
      "symbol": "sn74abt244amdbrep.kicad_sym",
      "footprint": "sn74abt244amdbrep.kicad_mod",
      "model_3d": "sn74abt244amdbrep-hero.glb",
      "model_3d_plain": "sn74abt244amdbrep.glb",
      "model_3d_step": "sn74abt244amdbrep-etched.step",
      "model_3d_step_plain": "sn74abt244amdbrep.step",
      "lbr": "sn74abt244amdbrep.lbr"
    },
    "distributor_links": {
      "lcsc": "C2676205",
      "digikey": "296-22245-2-ND",
      "mouser": "595-S74ABT244AMDBREP"
    },
    "distributor_check": {
      "checked_at": "2026-10-09T05:52:10Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-22245-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-S74ABT244AMDBREP",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "1OE",
        "type": "input",
        "description": "Active-low output enable for the first 4-bit buffer; when low the 1Y outputs follow the 1A inputs, and when high they go to the high-impedance state, so it should be tied to VCC through a pullup resistor to keep the outputs high-impedance during power up or power down."
      },
      {
        "number": "2",
        "name": "1A1",
        "type": "input",
        "description": "Data input 1A1 of the first buffer; VIH minimum 2 V and VIL maximum 0.8 V, and unused inputs must be held high or low."
      },
      {
        "number": "3",
        "name": "2Y4",
        "type": "tri_state",
        "description": "Output 2Y4 of the second buffer, rated for high drive at IOH -24 mA and IOL 48 mA, and in the high-impedance state when 2OE is high."
      },
      {
        "number": "4",
        "name": "1A2",
        "type": "input",
        "description": "Data input 1A2 of the first buffer; VIH minimum 2 V and VIL maximum 0.8 V, and unused inputs must be held high or low."
      },
      {
        "number": "5",
        "name": "2Y3",
        "type": "tri_state",
        "description": "Output 2Y3 of the second buffer, rated for high drive at IOH -24 mA and IOL 48 mA, and in the high-impedance state when 2OE is high."
      },
      {
        "number": "6",
        "name": "1A3",
        "type": "input",
        "description": "Data input 1A3 of the first buffer; VIH minimum 2 V and VIL maximum 0.8 V, and unused inputs must be held high or low."
      },
      {
        "number": "7",
        "name": "2Y2",
        "type": "tri_state",
        "description": "Output 2Y2 of the second buffer, rated for high drive at IOH -24 mA and IOL 48 mA, and in the high-impedance state when 2OE is high."
      },
      {
        "number": "8",
        "name": "1A4",
        "type": "input",
        "description": "Data input 1A4 of the first buffer; VIH minimum 2 V and VIL maximum 0.8 V, and unused inputs must be held high or low."
      },
      {
        "number": "9",
        "name": "2Y1",
        "type": "tri_state",
        "description": "Output 2Y1 of the second buffer, rated for high drive at IOH -24 mA and IOL 48 mA, and in the high-impedance state when 2OE is high."
      },
      {
        "number": "10",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground reference; the datasheet gives no separate ground pin limit."
      },
      {
        "number": "11",
        "name": "2A1",
        "type": "input",
        "description": "Data input 2A1 of the second buffer; VIH minimum 2 V and VIL maximum 0.8 V, and unused inputs must be held high or low."
      },
      {
        "number": "12",
        "name": "1Y4",
        "type": "tri_state",
        "description": "Output 1Y4 of the first buffer, rated for high drive at IOH -24 mA and IOL 48 mA, and in the high-impedance state when 1OE is high."
      },
      {
        "number": "13",
        "name": "2A2",
        "type": "input",
        "description": "Data input 2A2 of the second buffer; VIH minimum 2 V and VIL maximum 0.8 V, and unused inputs must be held high or low."
      },
      {
        "number": "14",
        "name": "1Y3",
        "type": "tri_state",
        "description": "Output 1Y3 of the first buffer, rated for high drive at IOH -24 mA and IOL 48 mA, and in the high-impedance state when 1OE is high."
      },
      {
        "number": "15",
        "name": "2A3",
        "type": "input",
        "description": "Data input 2A3 of the second buffer; VIH minimum 2 V and VIL maximum 0.8 V, and unused inputs must be held high or low."
      },
      {
        "number": "16",
        "name": "1Y2",
        "type": "tri_state",
        "description": "Output 1Y2 of the first buffer, rated for high drive at IOH -24 mA and IOL 48 mA, and in the high-impedance state when 1OE is high."
      },
      {
        "number": "17",
        "name": "2A4",
        "type": "input",
        "description": "Data input 2A4 of the second buffer; VIH minimum 2 V and VIL maximum 0.8 V, and unused inputs must be held high or low."
      },
      {
        "number": "18",
        "name": "1Y1",
        "type": "tri_state",
        "description": "Output 1Y1 of the first buffer, rated for high drive at IOH -24 mA and IOL 48 mA, and in the high-impedance state when 1OE is high."
      },
      {
        "number": "19",
        "name": "2OE",
        "type": "input",
        "description": "Active-low output enable for the second 4-bit buffer; when low the 2Y outputs follow the 2A inputs, and when high they go to the high-impedance state, so it should be tied to VCC through a pullup resistor to keep the outputs high-impedance during power up or power down."
      },
      {
        "number": "20",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage, recommended operating range 4.5 V to 5.5 V with an absolute maximum of 7 V."
      }
    ],
    "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 datasheet does not state '208 mil' anywhere. The only package designation given is DB (SSOP, DB0; The page 1 pin-name listing is extracted from a top-view drawing in an unusual order. The pin number"
        ],
        "pages_sent": 13,
        "cost_usd": 0.0648,
        "at": "2026-10-09T05:51:54"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/sn74abt244a-ep",
        "pages": 13,
        "sha256": "c2ce702588c9d2d1",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 20,
        "described": 20,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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      "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": [
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        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "c9a01a276d0b4d9561efd58f2fcee56f52c1b6ab464ea7a0380cab4e87a924e6",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sn74abt244amdbrep-etched.step",
        "role": "eda",
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        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0.0,
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        "footprint_binding": "identity",
        "sha256": "2bbe198af7f92e90a9306848cc2ce62efbd280fe92dbfc4b33046547035343d9",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  }
}