SN74AHCT126DBR

{
  "schema_version": 1,
  "type": "component",
  "slug": "sn74ahct126dbr",
  "title": "SN74AHCT126DBR",
  "brief": "Texas Instruments Buffers, Drivers, Receivers, Transceivers, SSOP-14-208mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "logic",
    "sn74ahct126dbr",
    "factory-2.0.0",
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  "component": {
    "mpn": "SN74AHCT126DBR",
    "manufacturer": "Texas Instruments",
    "package": "SSOP-14-208mil",
    "pin_count": 14,
    "category": "Logic",
    "subcategory": "Buffers, Drivers, Receivers, Transceivers",
    "datasheet": "https://www.ti.com/cn/lit/gpn/sn74ahct126",
    "parts": {
      "symbol": "sn74ahct126dbr.kicad_sym",
      "footprint": "sn74ahct126dbr.kicad_mod",
      "model_3d": "sn74ahct126dbr-etched.glb",
      "model_3d_plain": "sn74ahct126dbr.glb",
      "model_3d_step": "sn74ahct126dbr-etched.step",
      "model_3d_step_plain": "sn74ahct126dbr.step",
      "lbr": "sn74ahct126dbr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2865492"
    },
    "pins": [
      {
        "number": "1",
        "name": "1OE",
        "type": "input",
        "description": "Output Enable 1 input, active high; when high, output 1Y is enabled; when low, 1Y is high-impedance"
      },
      {
        "number": "2",
        "name": "1A",
        "type": "input",
        "description": "Data input for buffer 1; passed to 1Y when 1OE is high"
      },
      {
        "number": "3",
        "name": "1Y",
        "type": "tri_state",
        "description": "Tri-state output of buffer 1; buffers data from 1A when 1OE is high, high-impedance when 1OE is low"
      },
      {
        "number": "4",
        "name": "2OE",
        "type": "input",
        "description": "Output Enable 2 input, active high; when high, output 2Y is enabled; when low, 2Y is high-impedance"
      },
      {
        "number": "5",
        "name": "2A",
        "type": "input",
        "description": "Data input for buffer 2; passed to 2Y when 2OE is high"
      },
      {
        "number": "6",
        "name": "2Y",
        "type": "tri_state",
        "description": "Tri-state output of buffer 2; buffers data from 2A when 2OE is high, high-impedance when 2OE is low"
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin"
      },
      {
        "number": "8",
        "name": "3Y",
        "type": "tri_state",
        "description": "Tri-state output of buffer 3; buffers data from 3A when 3OE is high, high-impedance when 3OE is low"
      },
      {
        "number": "9",
        "name": "3A",
        "type": "input",
        "description": "Data input for buffer 3; passed to 3Y when 3OE is high"
      },
      {
        "number": "10",
        "name": "3OE",
        "type": "input",
        "description": "Output Enable 3 input, active high; when high, output 3Y is enabled; when low, 3Y is high-impedance"
      },
      {
        "number": "11",
        "name": "4Y",
        "type": "tri_state",
        "description": "Tri-state output of buffer 4; buffers data from 4A when 4OE is high, high-impedance when 4OE is low"
      },
      {
        "number": "12",
        "name": "4A",
        "type": "input",
        "description": "Data input for buffer 4; passed to 4Y when 4OE is high"
      },
      {
        "number": "13",
        "name": "4OE",
        "type": "input",
        "description": "Output Enable 4 input, active high; when high, output 4Y is enabled; when low, 4Y is high-impedance"
      },
      {
        "number": "14",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage pin, 4.5 V to 5.5 V nominal"
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.2",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.2",
        "primary_model": "claude-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [],
        "pages_sent": 36,
        "cost_usd": 0.2429,
        "at": "2026-09-24T01:35:14"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/sn74ahct126",
        "pages": 36,
        "sha256": "530e7e17dc890bb7",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 14,
        "described": 14,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SSOP-14-208mil",
      "Category": "Logic",
      "Pins": "14"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "sn74ahct126dbr"
  ],
  "discovery_pitch": "SN74AHCT126DBR (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "sn74ahct126dbr.glb",
    "sn74ahct126dbr.step",
    "sn74ahct126dbr.lbr",
    "docs/hero.png",
    "docs/sn74ahct126dbr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
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  "visibility": {
    "public": true
  }
}