CD74HC4049NSR

{
  "slug": "cd74hc4049nsr",
  "version": "0.1.1",
  "type": "component",
  "description": "Texas Instruments Buffers, Drivers, Receivers, Transceivers, SO-16. Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic",
    "cd74hc4049nsr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "cd74hc4049nsr.kicad_sym",
    "cd74hc4049nsr.kicad_mod",
    "cd74hc4049nsr.glb",
    "cd74hc4049nsr.step",
    "cd74hc4049nsr.lbr",
    "docs/hero.png",
    "docs/cd74hc4049nsr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "cd74hc4049nsr-hero.glb",
    "cd74hc4049nsr-hero.overlay.json",
    "cd74hc4049nsr-etched.glb"
  ],
  "component": {
    "mpn": "CD74HC4049NSR",
    "manufacturer": "Texas Instruments",
    "package": "SO-16",
    "pin_count": 16,
    "category": "Logic",
    "subcategory": "Buffers, Drivers, Receivers, Transceivers",
    "datasheet": "https://www.ti.com/cn/lit/gpn/cd74hc4050",
    "parts": {
      "symbol": "cd74hc4049nsr.kicad_sym",
      "footprint": "cd74hc4049nsr.kicad_mod",
      "model_3d": "cd74hc4049nsr-hero.glb",
      "model_3d_plain": "cd74hc4049nsr-etched.glb",
      "model_3d_step": "cd74hc4049nsr-etched.step",
      "model_3d_step_plain": "cd74hc4049nsr.step",
      "lbr": "cd74hc4049nsr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2870567",
      "digikey": "296-29273-2-ND",
      "mouser": "595-CD74HC4049NSR"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T09:51:30Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-29273-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-CD74HC4049NSR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "NC",
        "type": "unconnected",
        "description": "No Connect"
      },
      {
        "number": "2",
        "name": "6A",
        "type": "input",
        "description": "Inverting input for stage 6; accepts 0V to 16V input levels"
      },
      {
        "number": "3",
        "name": "NC",
        "type": "unconnected",
        "description": "No Connect"
      },
      {
        "number": "4",
        "name": "5Y",
        "type": "output",
        "description": "Inverting output for stage 5; provides 0V to VCC logic level output"
      },
      {
        "number": "5",
        "name": "5A",
        "type": "input",
        "description": "Inverting input for stage 5; accepts 0V to 16V input levels"
      },
      {
        "number": "6",
        "name": "4Y",
        "type": "output",
        "description": "Inverting output for stage 4; provides 0V to VCC logic level output"
      },
      {
        "number": "7",
        "name": "4A",
        "type": "input",
        "description": "Inverting input for stage 4; accepts 0V to 16V input levels"
      },
      {
        "number": "8",
        "name": "6Y",
        "type": "output",
        "description": "Inverting output for stage 6; provides 0V to VCC logic level output"
      },
      {
        "number": "9",
        "name": "3A",
        "type": "input",
        "description": "Inverting input for stage 3; accepts 0V to 16V input levels"
      },
      {
        "number": "10",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for device"
      },
      {
        "number": "11",
        "name": "3Y",
        "type": "output",
        "description": "Inverting output for stage 3; provides 0V to VCC logic level output"
      },
      {
        "number": "12",
        "name": "2A",
        "type": "input",
        "description": "Inverting input for stage 2; accepts 0V to 16V input levels"
      },
      {
        "number": "13",
        "name": "2Y",
        "type": "output",
        "description": "Inverting output for stage 2; provides 0V to VCC logic level output"
      },
      {
        "number": "14",
        "name": "1A",
        "type": "input",
        "description": "Inverting input for stage 1; accepts 0V to 16V input levels"
      },
      {
        "number": "15",
        "name": "1Y",
        "type": "output",
        "description": "Inverting output for stage 1; provides 0V to VCC logic level output"
      },
      {
        "number": "16",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive power supply; 2V to 6V for HC types"
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/cd74hc4050",
        "pages": 11,
        "sha256": "2d5643ffe4911f23",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "cd74hc4049nsr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          9.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "d5eeddb4c0b304dc61950919b126fc61d7586abd5f16ab71a2a79759ec6498bf",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cd74hc4049nsr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          9.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "362e9e188c3cf789cebace126c0d22abf629b45368764927ec598fcea1a6c488",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}