main
Ray Set visibility: public ba14feb 8d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "sn74ls20n",
  "title": "SN74LS20N",
  "brief": "XBLW Logic Gates, DIP-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "logic",
    "sn74ls20n",
    "factory-2.0.0",
    "extractor-text"
  ],
  "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"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 14,
        "described": 14,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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        "checked": "2026-10-14",
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        "checked": "2026-10-14",
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "XBLW",
      "Package": "DIP-14",
      "Category": "Logic",
      "Pins": "14"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "11074007943c730ea62bfd2b77cc86236c512280b81f202e95c434f159c5ace9",
      "rows": [
        {
          "name": "Supply voltage",
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          "kind": "absolute_maximum",
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          "min": -0.5,
          "typ": null,
          "max": 7,
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        },
        {
          "name": "Input clamping current",
          "symbol": "IIK",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -20,
          "typ": null,
          "max": 20,
          "conditions": "VI<-0.5V or VI>VCC+0.5V",
          "source_page": 5,
          "source": "datasheet"
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        {
          "name": "Output clamping current",
          "symbol": "IOK",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -20,
          "typ": null,
          "max": 20,
          "conditions": "VO<-0.5V or VO>VCC+0.5V",
          "source_page": 5,
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        },
        {
          "name": "Output current",
          "symbol": "IO",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -25,
          "typ": null,
          "max": 25,
          "conditions": "-0.5V<VO<VCC+0.5V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Supply current",
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          "kind": "absolute_maximum",
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          "typ": null,
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          "conditions": "",
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        {
          "name": "Ground current",
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        },
        {
          "name": "Total power dissipation",
          "symbol": "Ptot",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 500,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Soldering temperature",
          "symbol": "TL",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "10s",
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          "source": "datasheet"
        },
        {
          "name": "Supply voltage",
          "symbol": "VCC",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2,
          "typ": 5,
          "max": 6,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Input voltage",
          "symbol": "VI",
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          "unit": "V",
          "min": 0,
          "typ": null,
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          "name": "Output voltage",
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        },
        {
          "name": "Input transition rise and fall rate",
          "symbol": "Δt/ΔV",
          "kind": "recommended_operating",
          "unit": "ns/V",
          "min": null,
          "typ": null,
          "max": 625,
          "conditions": "VCC=2.0V",
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        {
          "name": "Input transition rise and fall rate",
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          "min": null,
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          "conditions": "VCC=4.5V",
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        {
          "name": "Input transition rise and fall rate",
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          "kind": "recommended_operating",
          "unit": "ns/V",
          "min": null,
          "typ": null,
          "max": 83,
          "conditions": "VCC=6.0V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Ambient temperature",
          "symbol": "Tamb",
          "kind": "recommended_operating",
          "unit": "℃",
          "min": -20,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "HIGH-level input voltage",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": 3.15,
          "typ": null,
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          "conditions": "Tamb=25℃, VCC=4.5V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "HIGH-level input voltage",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": 4.2,
          "typ": null,
          "max": null,
          "conditions": "Tamb=25℃, VCC=6.0V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "HIGH-level output voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 1.9,
          "typ": null,
          "max": null,
          "conditions": "Tamb=25℃, VCC=2.0V, IO=-20uA",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "HIGH-level output voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 4.4,
          "typ": null,
          "max": null,
          "conditions": "Tamb=25℃, VCC=4.5V, IO=-20uA",
          "source_page": 6,
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        {
          "name": "HIGH-level output voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 3.98,
          "typ": null,
          "max": null,
          "conditions": "Tamb=25℃, VCC=4.5V, IO=-4.0mA",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "HIGH-level output voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 5.48,
          "typ": null,
          "max": null,
          "conditions": "Tamb=25℃, VCC=6.0V, IO=-5.2mA",
          "source_page": 6,
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        },
        {
          "name": "LOW-level output voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.1,
          "conditions": "Tamb=25℃, VCC=2.0V, IO=20uA",
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        {
          "name": "LOW-level output voltage",
          "symbol": "VOL",
          "kind": "electrical",
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          "min": null,
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          "max": 0.26,
          "conditions": "Tamb=25℃, VCC=4.5V, IO=4.0mA",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input leakage current",
          "symbol": "II",
          "kind": "electrical",
          "unit": "uA",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "Tamb=25℃, VI=VCC or GND, VCC=6.0V",
          "source_page": 6,
          "source": "datasheet"
        },
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          "name": "Supply current",
          "symbol": "ICC",
          "kind": "electrical",
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          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "Tamb=25℃, VI=VCC or GND, IO=0A, VCC=6.0V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input capacitance",
          "symbol": "CI",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": null,
          "max": 3.5,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "HIGH-level output voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 3.84,
          "typ": null,
          "max": null,
          "conditions": "Tamb=-20℃ to +85℃, VCC=4.5V, IO=-4.0mA",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "HIGH-level output voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 5.34,
          "typ": null,
          "max": null,
          "conditions": "Tamb=-20℃ to +85℃, VCC=6.0V, IO=-5.2mA",
          "source_page": 6,
          "source": "datasheet"
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        {
          "name": "LOW-level output voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.33,
          "conditions": "Tamb=-20℃ to +85℃, VCC=4.5V, IO=4.0mA",
          "source_page": 6,
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          "name": "Supply current",
          "symbol": "ICC",
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          "min": null,
          "typ": null,
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          "conditions": "Tamb=-20℃ to +85℃, VI=VCC or GND, IO=0A, VCC=6.0V",
          "source_page": 6,
          "source": "datasheet"
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      ]
    }
  },
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  "discovery_pitch": "SN74LS20N (XBLW) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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