SN74LS126DR

{
  "slug": "sn74ls126dr",
  "version": "0.1.0",
  "type": "component",
  "description": "lingxingic Buffers, Drivers, Receivers, Transceivers, SOP-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic",
    "sn74ls126dr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sn74ls126dr.kicad_sym",
    "sn74ls126dr.kicad_mod",
    "sn74ls126dr.glb",
    "sn74ls126dr.step",
    "sn74ls126dr.lbr",
    "docs/hero.png",
    "docs/sn74ls126dr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sn74ls126dr-hero.glb",
    "sn74ls126dr-hero.overlay.json",
    "sn74ls126dr-etched.glb"
  ],
  "component": {
    "mpn": "SN74LS126DR",
    "manufacturer": "lingxingic",
    "package": "SOP-14",
    "pin_count": 14,
    "category": "Logic",
    "subcategory": "Buffers, Drivers, Receivers, Transceivers",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603366976908128256",
    "parts": {
      "symbol": "sn74ls126dr.kicad_sym",
      "footprint": "sn74ls126dr.kicad_mod",
      "model_3d": "sn74ls126dr-hero.glb",
      "model_3d_plain": "sn74ls126dr-etched.glb",
      "model_3d_step": "sn74ls126dr-etched.step",
      "model_3d_step_plain": "sn74ls126dr.step",
      "lbr": "sn74ls126dr.lbr"
    },
    "distributor_links": {
      "lcsc": "C22384765"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T21:54:37Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "1OE",
        "type": "input",
        "description": "Output enable input for buffer 1, active high (H enables, L forces 1Y to high impedance)."
      },
      {
        "number": "2",
        "name": "1A",
        "type": "input",
        "description": "Data input of buffer 1; recommended input voltage range is 0 V to VCC."
      },
      {
        "number": "3",
        "name": "1Y",
        "type": "output",
        "description": "Data output of buffer 1, which goes to high impedance when 1OE is low; output clamp diodes are built in."
      },
      {
        "number": "4",
        "name": "2OE",
        "type": "input",
        "description": "Output enable input for buffer 2, active high (H enables, L forces 2Y to high impedance)."
      },
      {
        "number": "5",
        "name": "2A",
        "type": "input",
        "description": "Data input of buffer 2; recommended input voltage range is 0 V to VCC."
      },
      {
        "number": "6",
        "name": "2Y",
        "type": "output",
        "description": "Data output of buffer 2, which goes to high impedance when 2OE is low; output clamp diodes are built in."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference, 0 V."
      },
      {
        "number": "8",
        "name": "3Y",
        "type": "output",
        "description": "Data output of buffer 3, which goes to high impedance when 3OE is low; output clamp diodes are built in."
      },
      {
        "number": "9",
        "name": "3A",
        "type": "input",
        "description": "Data input of buffer 3; recommended input voltage range is 0 V to VCC."
      },
      {
        "number": "10",
        "name": "3OE",
        "type": "input",
        "description": "Output enable input for buffer 3, active high (H enables, L forces 3Y to high impedance)."
      },
      {
        "number": "11",
        "name": "4Y",
        "type": "output",
        "description": "Data output of buffer 4, which goes to high impedance when 4OE is low; output clamp diodes are built in."
      },
      {
        "number": "12",
        "name": "4A",
        "type": "input",
        "description": "Data input of buffer 4; recommended input voltage range is 0 V to VCC."
      },
      {
        "number": "13",
        "name": "4OE",
        "type": "input",
        "description": "Output enable input for buffer 4, active high (H enables, L forces 4Y to high impedance)."
      },
      {
        "number": "14",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage; recommended range 2.0 V to 6.0 V, absolute maximum 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: Overview (page 3) says the outputs are inverting, but the function table (page 6) shows nY = nA when; The OE pins are named 'nOE' but the pin table calls them active high, and the overview says low forc; Package is SOP14 per the ordering table (SN74LS126DR(LX) listed as SOP14 with 1.27 mm pitch) and the"
        ],
        "pages_sent": 19,
        "cost_usd": 0.0698,
        "at": "2026-10-18T21:52:22"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603366976908128256",
        "pages": 19,
        "sha256": "d9607448f69fda2d",
        "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"
    },
    "models_3d": [
      {
        "file": "sn74ls126dr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          8.7,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "3b9a775da256c8afcc28dcddfbc2eb3f266107fe61ce8446d96f2c52b6f44a70",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sn74ls126dr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          8.7,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "3d7a7971bfba3fe9408e8cc6a70588e25e695f987bb411b152a56b9571de640f",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}