SN74LS20DR

{
  "slug": "sn74ls20dr",
  "version": "0.1.0",
  "type": "component",
  "description": "lingxingic Logic Gates, SOP-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic",
    "sn74ls20dr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sn74ls20dr.kicad_sym",
    "sn74ls20dr.kicad_mod",
    "sn74ls20dr.glb",
    "sn74ls20dr.step",
    "sn74ls20dr.lbr",
    "docs/hero.png",
    "docs/sn74ls20dr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sn74ls20dr-hero.glb",
    "sn74ls20dr-hero.overlay.json",
    "sn74ls20dr-etched.glb"
  ],
  "component": {
    "mpn": "SN74LS20DR",
    "manufacturer": "lingxingic",
    "package": "SOP-14",
    "pin_count": 14,
    "category": "Logic",
    "subcategory": "Logic Gates",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603380453646876672",
    "parts": {
      "symbol": "sn74ls20dr.kicad_sym",
      "footprint": "sn74ls20dr.kicad_mod",
      "model_3d": "sn74ls20dr-hero.glb",
      "model_3d_plain": "sn74ls20dr-etched.glb",
      "model_3d_step": "sn74ls20dr-etched.step",
      "model_3d_step_plain": "sn74ls20dr.step",
      "lbr": "sn74ls20dr.lbr"
    },
    "distributor_links": {
      "lcsc": "C22449634",
      "digikey": "296-3669-2-ND",
      "mouser": "595-SN74LS20DR"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T05:26:53Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-3669-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-SN74LS20DR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "1A",
        "type": "input",
        "description": "Data input 1A of NAND gate 1; per the function table on page 7, output 1Y is high whenever any one of 1A, 1B, 1C or 1D is low."
      },
      {
        "number": "2",
        "name": "1B",
        "type": "input",
        "description": "Data input 1B of NAND gate 1; per the function table on page 7, output 1Y is high whenever any one of 1A, 1B, 1C or 1D is low."
      },
      {
        "number": "3",
        "name": "n.c.",
        "type": "unconnected",
        "description": "Not connected (no internal connection)."
      },
      {
        "number": "4",
        "name": "1C",
        "type": "input",
        "description": "Data input 1C of NAND gate 1; per the function table on page 7, output 1Y is high whenever any one of 1A, 1B, 1C or 1D is low."
      },
      {
        "number": "5",
        "name": "1D",
        "type": "input",
        "description": "Data input 1D of NAND gate 1; per the function table on page 7, output 1Y is high whenever any one of 1A, 1B, 1C or 1D is low."
      },
      {
        "number": "6",
        "name": "1Y",
        "type": "output",
        "description": "Data output of NAND gate 1; it is high when any input of gate 1 is low and low only when all four inputs are high."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Ground (0 V) reference for the device."
      },
      {
        "number": "8",
        "name": "2Y",
        "type": "output",
        "description": "Data output of NAND gate 2; it is high when any input of gate 2 is low and low only when all four inputs are high."
      },
      {
        "number": "9",
        "name": "2A",
        "type": "input",
        "description": "Data input 2A of NAND gate 2; per the function table on page 7, output 2Y is high whenever any one of 2A, 2B, 2C or 2D is low."
      },
      {
        "number": "10",
        "name": "2B",
        "type": "input",
        "description": "Data input 2B of NAND gate 2; per the function table on page 7, output 2Y is high whenever any one of 2A, 2B, 2C or 2D is low."
      },
      {
        "number": "11",
        "name": "n.c.",
        "type": "unconnected",
        "description": "Not connected (no internal connection)."
      },
      {
        "number": "12",
        "name": "2C",
        "type": "input",
        "description": "Data input 2C of NAND gate 2; per the function table on page 7, output 2Y is high whenever any one of 2A, 2B, 2C or 2D is low."
      },
      {
        "number": "13",
        "name": "2D",
        "type": "input",
        "description": "Data input 2D of NAND gate 2; per the function table on page 7, output 2Y is high whenever any one of 2A, 2B, 2C or 2D is low."
      },
      {
        "number": "14",
        "name": "VCC",
        "type": "power_in",
        "description": "Power supply; recommended operating range is 2.0 V to 6.0 V (page 7)."
      }
    ],
    "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 SOP14 pinout is taken from the pin-arrangement table (section 2.3, page 6), which applies to DIP"
        ],
        "pages_sent": 18,
        "cost_usd": 0.0604,
        "at": "2026-10-19T05:24:48"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603380453646876672",
        "pages": 18,
        "sha256": "21bef0f218dc526e",
        "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": "sn74ls20dr.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": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sn74ls20dr-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": "ef198fd9aa62f6535aa8c0b8fe33f46273334020f7aeb11df86a96d6b8fa5c80",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}