SN74HC266N

{
  "slug": "sn74hc266n",
  "version": "0.1.0",
  "type": "component",
  "description": "lingxingic Buffers, Drivers, Receivers, Transceivers, DIP-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic",
    "sn74hc266n",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sn74hc266n.kicad_sym",
    "sn74hc266n.kicad_mod",
    "sn74hc266n.glb",
    "sn74hc266n.step",
    "sn74hc266n.lbr",
    "docs/hero.png",
    "docs/sn74hc266n-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sn74hc266n-hero.glb",
    "sn74hc266n-hero.overlay.json",
    "sn74hc266n-etched.glb"
  ],
  "component": {
    "mpn": "SN74HC266N",
    "manufacturer": "lingxingic",
    "package": "DIP-14",
    "pin_count": 14,
    "category": "Logic",
    "subcategory": "Buffers, Drivers, Receivers, Transceivers",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603388813373304832",
    "parts": {
      "symbol": "sn74hc266n.kicad_sym",
      "footprint": "sn74hc266n.kicad_mod",
      "model_3d": "sn74hc266n-hero.glb",
      "model_3d_plain": "sn74hc266n-etched.glb",
      "model_3d_step": "sn74hc266n-etched.step",
      "model_3d_step_plain": "sn74hc266n.step",
      "lbr": "sn74hc266n.lbr"
    },
    "distributor_links": {
      "lcsc": "C32710654",
      "digikey": "2156-SN74HC266N-ND",
      "mouser": "595-SN74HC266N"
    },
    "distributor_check": {
      "checked_at": "2026-10-16T11:48:17Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "2156-SN74HC266N-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-SN74HC266N",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "1A",
        "type": "input",
        "description": "Data input A of gate 1; the recommended input voltage range is 0 V to VCC."
      },
      {
        "number": "2",
        "name": "1B",
        "type": "input",
        "description": "Data input B of gate 1; the recommended input voltage range is 0 V to VCC."
      },
      {
        "number": "3",
        "name": "1Y",
        "type": "output",
        "description": "Open-drain output of gate 1 (XNOR of 1A and 1B); the absolute maximum output current is ±25 mA with -0.5 V < VO < VCC+0.5 V."
      },
      {
        "number": "4",
        "name": "2Y",
        "type": "output",
        "description": "Open-drain output of gate 2 (XNOR of 2A and 2B); the absolute maximum output current is ±25 mA with -0.5 V < VO < VCC+0.5 V."
      },
      {
        "number": "5",
        "name": "2A",
        "type": "input",
        "description": "Data input A of gate 2; the recommended input voltage range is 0 V to VCC."
      },
      {
        "number": "6",
        "name": "2B",
        "type": "input",
        "description": "Data input B of gate 2; the recommended input voltage range is 0 V to VCC."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Ground (0 V); all voltages are referenced to this pin."
      },
      {
        "number": "8",
        "name": "3A",
        "type": "input",
        "description": "Data input A of gate 3; the recommended input voltage range is 0 V to VCC."
      },
      {
        "number": "9",
        "name": "3B",
        "type": "input",
        "description": "Data input B of gate 3; the recommended input voltage range is 0 V to VCC."
      },
      {
        "number": "10",
        "name": "3Y",
        "type": "output",
        "description": "Open-drain output of gate 3 (XNOR of 3A and 3B); the absolute maximum output current is ±25 mA with -0.5 V < VO < VCC+0.5 V."
      },
      {
        "number": "11",
        "name": "4Y",
        "type": "output",
        "description": "Open-drain output of gate 4 (XNOR of 4A and 4B); the absolute maximum output current is ±25 mA with -0.5 V < VO < VCC+0.5 V."
      },
      {
        "number": "12",
        "name": "4A",
        "type": "input",
        "description": "Data input A of gate 4; the recommended input voltage range is 0 V to VCC."
      },
      {
        "number": "13",
        "name": "4B",
        "type": "input",
        "description": "Data input B of gate 4; the recommended input voltage range is 0 V to VCC."
      },
      {
        "number": "14",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage; recommended range is 2.0 V to 6.0 V for SN74HC266 and 4.5 V to 5.5 V for SN74HCT266, with 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: The Section 2.3 pin description table is internally inconsistent: it lists pin 9 as 4B and pin 12 as; The datasheet describes the outputs as open-drain (Function table shows Z states) but does not give ; The DIP14 package-variant pin mapping is the same for SN74HC266N and SN74HCT266N, and the datasheet "
        ],
        "pages_sent": 15,
        "cost_usd": 0.056,
        "at": "2026-10-16T11:47:58"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603388813373304832",
        "pages": 15,
        "sha256": "4b4cc1b98ee48ac0",
        "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": "sn74hc266n.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          7.874,
          19.05,
          6.98
        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "3dae072a95c64bee0d1e58be8e75383639f5017ab982de1749d05808a4eed058",
        "checked": "2026-10-16",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sn74hc266n-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          7.874,
          19.05,
          6.98
        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "1c65634e9add14c9cd9a32a50da65235ccecfbb3f2ad27afea2389ff91d8cf5e",
        "checked": "2026-10-16",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}