SN74LS20N

{
  "slug": "sn74ls20n",
  "version": "0.1.0",
  "type": "component",
  "description": "XBLW Logic Gates, DIP-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic",
    "sn74ls20n",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sn74ls20n.kicad_sym",
    "sn74ls20n.kicad_mod",
    "sn74ls20n.glb",
    "sn74ls20n.step",
    "sn74ls20n.lbr",
    "docs/hero.png",
    "docs/sn74ls20n-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sn74ls20n-hero.glb",
    "sn74ls20n-hero.overlay.json",
    "sn74ls20n-etched.glb"
  ],
  "component": {
    "mpn": "SN74LS20N",
    "manufacturer": "XBLW",
    "package": "DIP-14",
    "pin_count": 14,
    "category": "Logic",
    "subcategory": "Logic Gates",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/1b794f345839b753b9a510c4515f3a79.pdf",
    "parts": {
      "symbol": "sn74ls20n.kicad_sym",
      "footprint": "sn74ls20n.kicad_mod",
      "model_3d": "sn74ls20n-hero.glb",
      "model_3d_plain": "sn74ls20n-etched.glb",
      "model_3d_step": "sn74ls20n-etched.step",
      "model_3d_step_plain": "sn74ls20n.step",
      "lbr": "sn74ls20n.lbr"
    },
    "distributor_links": {
      "lcsc": "C42395510",
      "digikey": "296-3670-5-ND",
      "mouser": "595-SN74LS20N"
    },
    "distributor_check": {
      "checked_at": "2026-10-14T13:05:07Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-3670-5-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-SN74LS20N",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "1A",
        "type": "input",
        "description": "Data input 1A of gate 1; inputs include clamp diodes so current-limiting resistors can interface them to voltages above VCC, with input clamping current limited to ±20 mA."
      },
      {
        "number": "2",
        "name": "1B",
        "type": "input",
        "description": "Data input 1B of gate 1; inputs include clamp diodes so current-limiting resistors can interface them to voltages above VCC, with input clamping current limited to ±20 mA."
      },
      {
        "number": "3",
        "name": "n.c.",
        "type": "unconnected",
        "description": "Not connected."
      },
      {
        "number": "4",
        "name": "1C",
        "type": "input",
        "description": "Data input 1C of gate 1; inputs include clamp diodes so current-limiting resistors can interface them to voltages above VCC, with input clamping current limited to ±20 mA."
      },
      {
        "number": "5",
        "name": "1D",
        "type": "input",
        "description": "Data input 1D of gate 1; inputs include clamp diodes so current-limiting resistors can interface them to voltages above VCC, with input clamping current limited to ±20 mA."
      },
      {
        "number": "6",
        "name": "1Y",
        "type": "output",
        "description": "Data output 1Y of gate 1, the NAND of inputs 1A to 1D (low when all inputs are high); output current is limited to ±25 mA."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Ground (0 V) reference for all voltages in the datasheet."
      },
      {
        "number": "8",
        "name": "2Y",
        "type": "output",
        "description": "Data output 2Y of gate 2, the NAND of inputs 2A to 2D (low when all inputs are high); output current is limited to ±25 mA."
      },
      {
        "number": "9",
        "name": "2A",
        "type": "input",
        "description": "Data input 2A of gate 2; inputs include clamp diodes so current-limiting resistors can interface them to voltages above VCC, with input clamping current limited to ±20 mA."
      },
      {
        "number": "10",
        "name": "2B",
        "type": "input",
        "description": "Data input 2B of gate 2; inputs include clamp diodes so current-limiting resistors can interface them to voltages above VCC, with input clamping current limited to ±20 mA."
      },
      {
        "number": "11",
        "name": "n.c.",
        "type": "unconnected",
        "description": "Not connected."
      },
      {
        "number": "12",
        "name": "2C",
        "type": "input",
        "description": "Data input 2C of gate 2; inputs include clamp diodes so current-limiting resistors can interface them to voltages above VCC, with input clamping current limited to ±20 mA."
      },
      {
        "number": "13",
        "name": "2D",
        "type": "input",
        "description": "Data input 2D of gate 2; inputs include clamp diodes so current-limiting resistors can interface them to voltages above VCC, with input clamping current limited to ±20 mA."
      },
      {
        "number": "14",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage: recommended 2.0 V to 6.0 V (absolute maximum 7 V with respect to GND)."
      }
    ],
    "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 pin table text in the extraction is garbled (the '1' before 'CC supply voltage' is split); pin 1; The datasheet's pin configuration is given once for the family and is not explicitly stated per pack; Pin 3 and pin 11 are listed as not connected (n.c.) in the datasheet and were typed as unconnected."
        ],
        "pages_sent": 12,
        "cost_usd": 0.0407,
        "at": "2026-10-14T13:04:49"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/1b794f345839b753b9a510c4515f3a79.pdf",
        "pages": 12,
        "sha256": "11074007943c730e",
        "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": "sn74ls20n.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": "2026-10-14",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sn74ls20n-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": [
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        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "1411aee8462f5c647bc775c1b261a528071e58fadc14e6147e35f90501781b48",
        "checked": "2026-10-14",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}