SN74LVC138AQDRQ1

{
  "slug": "sn74lvc138aqdrq1",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Signal Switches, Multiplexers, Decoders, SOIC-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic",
    "sn74lvc138aqdrq1",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sn74lvc138aqdrq1.kicad_sym",
    "sn74lvc138aqdrq1.kicad_mod",
    "sn74lvc138aqdrq1.glb",
    "sn74lvc138aqdrq1.step",
    "sn74lvc138aqdrq1.lbr",
    "docs/hero.png",
    "docs/sn74lvc138aqdrq1-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
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  "component": {
    "mpn": "SN74LVC138AQDRQ1",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-16",
    "pin_count": 16,
    "category": "Logic",
    "subcategory": "Signal Switches, Multiplexers, Decoders",
    "datasheet": "https://www.ti.com/cn/lit/gpn/sn74lvc138a-q1",
    "parts": {
      "symbol": "sn74lvc138aqdrq1.kicad_sym",
      "footprint": "sn74lvc138aqdrq1.kicad_mod",
      "model_3d": "sn74lvc138aqdrq1-etched.glb",
      "model_3d_plain": "sn74lvc138aqdrq1.glb",
      "model_3d_step": "sn74lvc138aqdrq1-etched.step",
      "model_3d_step_plain": "sn74lvc138aqdrq1.step",
      "lbr": "sn74lvc138aqdrq1.lbr"
    },
    "distributor_links": {
      "lcsc": "C1880243",
      "digikey": "296-SN74LVC138AQDRQ1TR-ND",
      "mouser": "595-SN74LVC138AQDRQ1"
    },
    "distributor_check": {
      "checked_at": "2026-09-27T05:47:17Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-SN74LVC138AQDRQ1TR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-SN74LVC138AQDRQ1",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "A",
        "type": "input",
        "description": "Binary select input A (LSB); accepts input voltages from 0 V to 5.5 V with VCC operating from 2 V to 3.6 V; selects one of eight active-low outputs in combination with B and C."
      },
      {
        "number": "2",
        "name": "B",
        "type": "input",
        "description": "Binary select input B; accepts input voltages from 0 V to 5.5 V with VCC operating from 2 V to 3.6 V; selects one of eight active-low outputs in combination with A and C."
      },
      {
        "number": "3",
        "name": "C",
        "type": "input",
        "description": "Binary select input C (MSB); accepts input voltages from 0 V to 5.5 V with VCC operating from 2 V to 3.6 V; selects one of eight active-low outputs in combination with A and B."
      },
      {
        "number": "4",
        "name": "G2A",
        "type": "input",
        "description": "Active-low enable input; when HIGH, forces all outputs HIGH regardless of select inputs or G1 and G2B; VIH = 2 V min, VIL = 0.8 V max at VCC = 2.7 V to 3.6 V."
      },
      {
        "number": "5",
        "name": "G2B",
        "type": "input",
        "description": "Active-low enable input; when HIGH, forces all outputs HIGH regardless of select inputs or G1 and G2A; VIH = 2 V min, VIL = 0.8 V max at VCC = 2.7 V to 3.6 V."
      },
      {
        "number": "6",
        "name": "G1",
        "type": "input",
        "description": "Active-high enable input; when LOW, forces all outputs HIGH regardless of select inputs or G2A and G2B; VIH = 2 V min, VIL = 0.8 V max at VCC = 2.7 V to 3.6 V."
      },
      {
        "number": "7",
        "name": "Y7",
        "type": "output",
        "description": "Active-low decoded output Y7; driven LOW when G1=H, G2A=L, G2B=L, C=H, B=H, A=H; IOL max 24 mA, IOH max \u221224 mA at VCC = 3 V; max tpd 5.8 ns at 3.3 V."
      },
      {
        "number": "8",
        "name": "GND",
        "type": "power_in",
        "description": "Ground supply reference; continuous current through GND pin rated \u00b1100 mA."
      },
      {
        "number": "9",
        "name": "Y6",
        "type": "output",
        "description": "Active-low decoded output Y6; driven LOW when G1=H, G2A=L, G2B=L, C=H, B=H, A=L; IOL max 24 mA, IOH max \u221224 mA at VCC = 3 V; max tpd 5.8 ns at 3.3 V."
      },
      {
        "number": "10",
        "name": "Y5",
        "type": "output",
        "description": "Active-low decoded output Y5; driven LOW when G1=H, G2A=L, G2B=L, C=H, B=L, A=H; IOL max 24 mA, IOH max \u221224 mA at VCC = 3 V; max tpd 5.8 ns at 3.3 V."
      },
      {
        "number": "11",
        "name": "Y4",
        "type": "output",
        "description": "Active-low decoded output Y4; driven LOW when G1=H, G2A=L, G2B=L, C=H, B=L, A=L; IOL max 24 mA, IOH max \u221224 mA at VCC = 3 V; max tpd 5.8 ns at 3.3 V."
      },
      {
        "number": "12",
        "name": "Y3",
        "type": "output",
        "description": "Active-low decoded output Y3; driven LOW when G1=H, G2A=L, G2B=L, C=L, B=H, A=H; IOL max 24 mA, IOH max \u221224 mA at VCC = 3 V; max tpd 5.8 ns at 3.3 V."
      },
      {
        "number": "13",
        "name": "Y2",
        "type": "output",
        "description": "Active-low decoded output Y2; driven LOW when G1=H, G2A=L, G2B=L, C=L, B=H, A=L; IOL max 24 mA, IOH max \u221224 mA at VCC = 3 V; max tpd 5.8 ns at 3.3 V."
      },
      {
        "number": "14",
        "name": "Y1",
        "type": "output",
        "description": "Active-low decoded output Y1; driven LOW when G1=H, G2A=L, G2B=L, C=L, B=L, A=H; IOL max 24 mA, IOH max \u221224 mA at VCC = 3 V; max tpd 5.8 ns at 3.3 V."
      },
      {
        "number": "15",
        "name": "Y0",
        "type": "output",
        "description": "Active-low decoded output Y0; driven LOW when G1=H, G2A=L, G2B=L, C=L, B=L, A=L; IOL max 24 mA, IOH max \u221224 mA at VCC = 3 V; max tpd 5.8 ns at 3.3 V."
      },
      {
        "number": "16",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply voltage; recommended operating range 2 V to 3.6 V (data retention only at 1.5 V), absolute maximum 6.5 V; continuous current rating \u00b1100 mA."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.2",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.2",
        "primary_model": "claude-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-4-6",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [],
        "pages_sent": 14,
        "cost_usd": 0.3334,
        "at": "2026-09-27T05:46:58"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/sn74lvc138a-q1",
        "pages": 14,
        "sha256": "475d05357e72f862",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    }
  }
}