SN74AHCT125QPWRQ1

{
  "slug": "sn74ahct125qpwrq1",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Buffers, Drivers, Receivers, Transceivers, TSSOP-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic",
    "sn74ahct125qpwrq1",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sn74ahct125qpwrq1.kicad_sym",
    "sn74ahct125qpwrq1.kicad_mod",
    "sn74ahct125qpwrq1.glb",
    "sn74ahct125qpwrq1.step",
    "sn74ahct125qpwrq1.lbr",
    "docs/hero.png",
    "docs/sn74ahct125qpwrq1-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sn74ahct125qpwrq1-hero.glb",
    "sn74ahct125qpwrq1-hero.overlay.json",
    "sn74ahct125qpwrq1-etched.glb"
  ],
  "component": {
    "mpn": "SN74AHCT125QPWRQ1",
    "manufacturer": "Texas Instruments",
    "package": "TSSOP-14",
    "pin_count": 14,
    "category": "Logic",
    "subcategory": "Buffers, Drivers, Receivers, Transceivers",
    "datasheet": "https://www.ti.com/lit/ds/symlink/sn74ahct125qpwrq1.pdf",
    "parts": {
      "symbol": "sn74ahct125qpwrq1.kicad_sym",
      "footprint": "sn74ahct125qpwrq1.kicad_mod",
      "model_3d": "sn74ahct125qpwrq1-hero.glb",
      "model_3d_plain": "sn74ahct125qpwrq1-etched.glb",
      "model_3d_step": "sn74ahct125qpwrq1-etched.step",
      "model_3d_step_plain": "sn74ahct125qpwrq1.step",
      "lbr": "sn74ahct125qpwrq1.lbr"
    },
    "distributor_links": {
      "lcsc": "C507215",
      "mouser": "595-SN74AHCT125QPWRQ"
    },
    "distributor_check": {
      "checked_at": "2026-10-27T18:34:46Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": "595-SN74AHCT125QPWRQ",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "1OE",
        "type": "input",
        "description": "Output enable for gate 1; when high the 1Y output is disabled to high impedance, and when low the gate passes data from 1A to 1Y."
      },
      {
        "number": "2",
        "name": "1A",
        "type": "input",
        "description": "Data input of buffer 1, TTL-voltage compatible, passed to output 1Y when 1OE is low."
      },
      {
        "number": "3",
        "name": "1Y",
        "type": "tri_state",
        "description": "3-state output of buffer 1, high impedance whenever 1OE is high."
      },
      {
        "number": "4",
        "name": "2OE",
        "type": "input",
        "description": "Output enable for gate 2; when high the 2Y output is disabled to high impedance, and when low the gate passes data from 2A to 2Y."
      },
      {
        "number": "5",
        "name": "2A",
        "type": "input",
        "description": "Data input of buffer 2, TTL-voltage compatible, passed to output 2Y when 2OE is low."
      },
      {
        "number": "6",
        "name": "2Y",
        "type": "tri_state",
        "description": "3-state output of buffer 2, high impedance whenever 2OE is high."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device; unused inputs must be held at VCC or GND for proper operation."
      },
      {
        "number": "8",
        "name": "3Y",
        "type": "tri_state",
        "description": "3-state output of buffer 3, high impedance whenever 3OE is high."
      },
      {
        "number": "9",
        "name": "3A",
        "type": "input",
        "description": "Data input of buffer 3, TTL-voltage compatible, passed to output 3Y when 3OE is low."
      },
      {
        "number": "10",
        "name": "3OE",
        "type": "input",
        "description": "Output enable for gate 3; when high the 3Y output is disabled to high impedance, and when low the gate passes data from 3A to 3Y."
      },
      {
        "number": "11",
        "name": "4Y",
        "type": "tri_state",
        "description": "3-state output of buffer 4, high impedance whenever 4OE is high."
      },
      {
        "number": "12",
        "name": "4A",
        "type": "input",
        "description": "Data input of buffer 4, TTL-voltage compatible, passed to output 4Y when 4OE is low."
      },
      {
        "number": "13",
        "name": "4OE",
        "type": "input",
        "description": "Output enable for gate 4; when high the 4Y output is disabled to high impedance, and when low the gate passes data from 4A to 4Y."
      },
      {
        "number": "14",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage, recommended range 4.5 V to 5.5 V; OE should be tied to VCC through a pullup resistor to hold the outputs in high impedance during power up or down."
      }
    ],
    "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": null,
        "consensus": "skipped (clean text read)",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [],
        "pages_sent": 14,
        "cost_usd": 0.0016,
        "at": "2026-10-27T18:34:20"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/sn74ahct125qpwrq1.pdf",
        "pages": 14,
        "sha256": "8b326c21fdd36d5a",
        "source_tier": "mfr"
      },
      "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"
    },
    "models_3d": [
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        "file": "sn74ahct125qpwrq1.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          5.0,
          1.0
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "3ee5786aae56190997aa793ba3cfc003fd616782770e29719b4562f012982245",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sn74ahct125qpwrq1-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
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        "sha256": "62a7c88eebc5e89ff122885f1f8356d532e896ad98b6f3f1082a752f0fa446ca",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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    ]
  }
}