main
Ray Set visibility: public 43080cb 5d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "sn74f38dr",
  "title": "SN74F38DR",
  "brief": "Texas Instruments Logic Gates, SOIC-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": [
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    "logic",
    "sn74f38dr",
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    "extractor-text"
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  "component": {
    "mpn": "SN74F38DR",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-14",
    "pin_count": 14,
    "category": "Logic",
    "subcategory": "Logic Gates",
    "datasheet": "https://www.ti.com/lit/ds/symlink/sn74f38.pdf",
    "parts": {
      "symbol": "sn74f38dr.kicad_sym",
      "footprint": "sn74f38dr.kicad_mod",
      "model_3d": "sn74f38dr-hero.glb",
      "model_3d_plain": "sn74f38dr-etched.glb",
      "model_3d_step": "sn74f38dr-etched.step",
      "model_3d_step_plain": "sn74f38dr.step",
      "lbr": "sn74f38dr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2878705",
      "mouser": "595-SN74F38DR"
    },
    "distributor_check": {
      "checked_at": "2026-10-17T17:46:29Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": "595-SN74F38DR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "1A",
        "type": "input",
        "description": "Data input A of NAND buffer gate 1; the gate performs Y = A • B (positive logic) and the input current range is −30 mA to 5 mA."
      },
      {
        "number": "2",
        "name": "1B",
        "type": "input",
        "description": "Data input B of NAND buffer gate 1; the gate performs Y = A • B (positive logic) and the input current range is −30 mA to 5 mA."
      },
      {
        "number": "3",
        "name": "1Y",
        "type": "output",
        "description": "Open-collector output of gate 1 that requires an external pullup resistor to operate correctly and may be wired-OR connected with other open-collector outputs."
      },
      {
        "number": "4",
        "name": "2A",
        "type": "input",
        "description": "Data input A of NAND buffer gate 2; the gate performs Y = A • B (positive logic) and the input current range is −30 mA to 5 mA."
      },
      {
        "number": "5",
        "name": "2B",
        "type": "input",
        "description": "Data input B of NAND buffer gate 2; the gate performs Y = A • B (positive logic) and the input current range is −30 mA to 5 mA."
      },
      {
        "number": "6",
        "name": "2Y",
        "type": "output",
        "description": "Open-collector output of gate 2 that requires an external pullup resistor to operate correctly and may be wired-OR connected with other open-collector outputs."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device."
      },
      {
        "number": "8",
        "name": "3Y",
        "type": "output",
        "description": "Open-collector output of gate 3 that requires an external pullup resistor to operate correctly and may be wired-OR connected with other open-collector outputs."
      },
      {
        "number": "9",
        "name": "3A",
        "type": "input",
        "description": "Data input A of NAND buffer gate 3; the gate performs Y = A • B (positive logic) and the input current range is −30 mA to 5 mA."
      },
      {
        "number": "10",
        "name": "3B",
        "type": "input",
        "description": "Data input B of NAND buffer gate 3; the gate performs Y = A • B (positive logic) and the input current range is −30 mA to 5 mA."
      },
      {
        "number": "11",
        "name": "4Y",
        "type": "output",
        "description": "Open-collector output of gate 4 that requires an external pullup resistor to operate correctly and may be wired-OR connected with other open-collector outputs."
      },
      {
        "number": "12",
        "name": "4A",
        "type": "input",
        "description": "Data input A of NAND buffer gate 4; the gate performs Y = A • B (positive logic) and the input current range is −30 mA to 5 mA."
      },
      {
        "number": "13",
        "name": "4B",
        "type": "input",
        "description": "Data input B of NAND buffer gate 4; the gate performs Y = A • B (positive logic) and the input current range is −30 mA to 5 mA."
      },
      {
        "number": "14",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage, recommended 4.5 V to 5.5 V (nominal 5 V) with an absolute maximum of 7 V."
      }
    ],
    "provenance": {
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        "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 datasheet pin table is given for the D, J and N packages together. Pin numbers were taken from t; The IOL row on page 2 lists '48 64 mA' with only two values, so the SN54F38/SN74F38 column assignmen; KiCad has no open-collector pin class in this schema, so the open-collector outputs (pins 3, 6, 8, 1"
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        "cost_usd": 0.0488,
        "at": "2026-10-17T17:43:50"
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      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/sn74f38.pdf",
        "pages": 15,
        "sha256": "75f94a914cc8872e",
        "source_tier": "mfr"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 14,
        "described": 14,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
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        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "3b9a775da256c8afcc28dcddfbc2eb3f266107fe61ce8446d96f2c52b6f44a70",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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      {
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        "zmin_mm": 0,
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        "footprint_binding": "identity",
        "sha256": "bb395d13450726ed82fe38f436986a112deada75e9f655b93f09933ed8703595",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SOIC-14",
      "Category": "Logic",
      "Pins": "14"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "75f94a914cc8872e1d9f93af5139c65190972cd9670d68d74c105db2007381df",
      "rows": [
        {
          "name": "Supply voltage",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Input voltage",
          "symbol": "VI",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 7,
          "conditions": "See Note 1: may be exceeded provided input current ratings are observed",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Input current range",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -30,
          "typ": null,
          "max": 5,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Voltage range applied to any output in the high state",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": null,
          "conditions": "Maximum printed as VCC; numeric value not given",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Current into any output in the low state",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 128,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating free-air temperature range (SN74F38)",
          "symbol": "TA",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": 0,
          "typ": null,
          "max": 70,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature range",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage",
          "symbol": "VCC",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 4.5,
          "typ": 5,
          "max": 5.5,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "High-level input voltage",
          "symbol": "VIH",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Low-level input voltage",
          "symbol": "VIL",
          "kind": "recommended_operating",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.8,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Input clamp current",
          "symbol": "IIK",
          "kind": "recommended_operating",
          "unit": "mA",
          "min": -18,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "High-level output voltage",
          "symbol": "VOH",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 4.5,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Low-level output current",
          "symbol": "IOL",
          "kind": "recommended_operating",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 64,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating free-air temperature (SN74F38)",
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          "kind": "recommended_operating",
          "unit": "°C",
          "min": 0,
          "typ": null,
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          "source_page": 2,
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        },
        {
          "name": "Input clamp voltage",
          "symbol": "VIK",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": -1.2,
          "conditions": "VCC = 4.5 V, II = −18 mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Low-level output voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.3,
          "max": 0.5,
          "conditions": "VCC = 4.5 V, IOL = 48 mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Input current at maximum input voltage",
          "symbol": "II",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 0.1,
          "conditions": "VCC = 5.5 V, VI = 7 V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "High-level input current",
          "symbol": "IIH",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 20,
          "conditions": "VCC = 5.5 V, VI = 2.7 V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Low-level input current",
          "symbol": "IIL",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": -0.6,
          "conditions": "VCC = 5.5 V, VI = 0.5 V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "High-level output current",
          "symbol": "IOH",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 250,
          "conditions": "VCC = 4.5 V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Supply current, outputs high",
          "symbol": "ICCH",
          "kind": "electrical",
          "unit": "mA",
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          "typ": 4,
          "max": 7,
          "conditions": "VCC = 5.5 V, VI = 0",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Supply current, outputs low",
          "symbol": "ICCL",
          "kind": "electrical",
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          "min": null,
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          "max": 30,
          "conditions": "VCC = 5.5 V, VI = 4.5 V",
          "source_page": 2,
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        },
        {
          "name": "Propagation delay time, low-to-high level output (A or B to Y)",
          "symbol": "tPLH",
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          "min": 6.7,
          "typ": null,
          "max": 13,
          "conditions": "VCC = 4.5 V to 5.5 V, CL = 50 pF, RL = 500 Ω, TA = MIN to MAX",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Propagation delay time, low-to-high level output (A or B to Y)",
          "symbol": "tPLH",
          "kind": "timing",
          "unit": "ns",
          "min": 6.7,
          "typ": 9.6,
          "max": 12.5,
          "conditions": "VCC = 5 V, CL = 50 pF, RL = 500 Ω, TA = 25°C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Propagation delay time, high-to-low level output (A or B to Y)",
          "symbol": "tPHL",
          "kind": "timing",
          "unit": "ns",
          "min": 1,
          "typ": null,
          "max": 5.5,
          "conditions": "VCC = 4.5 V to 5.5 V, CL = 50 pF, RL = 500 Ω, TA = MIN to MAX",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Propagation delay time, high-to-low level output (A or B to Y)",
          "symbol": "tPHL",
          "kind": "timing",
          "unit": "ns",
          "min": 1,
          "typ": 2.6,
          "max": 5,
          "conditions": "VCC = 5 V, CL = 50 pF, RL = 500 Ω, TA = 25°C",
          "source_page": 3,
          "source": "datasheet"
        }
      ]
    }
  },
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  "discovery_pitch": "SN74F38DR (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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