74AHC138T16-13

{
  "slug": "74ahc138t16-13",
  "version": "0.1.0",
  "type": "component",
  "description": "Diodes Incorporated Signal Switches / Encoders & Decoders / Multiplexers, TSSOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic ics",
    "74ahc138t16-13",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "74ahc138t16-13.kicad_sym",
    "74ahc138t16-13.kicad_mod",
    "74ahc138t16-13.glb",
    "74ahc138t16-13.step",
    "74ahc138t16-13.lbr",
    "docs/hero.png",
    "docs/74ahc138t16-13-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "74ahc138t16-13-hero.glb",
    "74ahc138t16-13-hero.overlay.json",
    "74ahc138t16-13-etched.glb"
  ],
  "component": {
    "mpn": "74AHC138T16-13",
    "manufacturer": "Diodes Incorporated",
    "package": "TSSOP-16",
    "pin_count": 16,
    "category": "Logic ICs",
    "subcategory": "Signal Switches / Encoders & Decoders / Multiplexers",
    "datasheet": "https://www.diodes.com/assets/Datasheets/74AHC138T16-13.pdf",
    "parts": {
      "symbol": "74ahc138t16-13.kicad_sym",
      "footprint": "74ahc138t16-13.kicad_mod",
      "model_3d": "74ahc138t16-13-hero.glb",
      "model_3d_plain": "74ahc138t16-13-etched.glb",
      "model_3d_step": "74ahc138t16-13-etched.step",
      "model_3d_step_plain": "74ahc138t16-13.step",
      "lbr": "74ahc138t16-13.lbr"
    },
    "distributor_links": {
      "lcsc": "C842285",
      "mouser": "621-74AHC138T16-13"
    },
    "distributor_check": {
      "checked_at": "2026-10-27T18:34:40Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": "621-74AHC138T16-13",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "A0",
        "type": "input",
        "description": "Address input A0 is one bit of the three-bit binary weighted address and has Schmitt trigger action and accepts up to 5.5 V."
      },
      {
        "number": "2",
        "name": "A1",
        "type": "input",
        "description": "Address input A1 is one bit of the three-bit binary weighted address and has Schmitt trigger action and accepts up to 5.5 V."
      },
      {
        "number": "3",
        "name": "A2",
        "type": "input",
        "description": "Address input A2 is one bit of the three-bit binary weighted address and has Schmitt trigger action and accepts up to 5.5 V."
      },
      {
        "number": "4",
        "name": "E1",
        "type": "input",
        "description": "Active LOW enable input 1; the enable state requires E1 and E2 asserted low together with E3 asserted high."
      },
      {
        "number": "5",
        "name": "E2",
        "type": "input",
        "description": "Active LOW enable input 2; the enable state requires E1 and E2 asserted low together with E3 asserted high."
      },
      {
        "number": "6",
        "name": "E3",
        "type": "input",
        "description": "Active HIGH enable input 3; the enable state requires E3 asserted high together with E1 and E2 asserted low."
      },
      {
        "number": "7",
        "name": "Y7",
        "type": "output",
        "description": "Active LOW output 7; all outputs are high when the device is disabled."
      },
      {
        "number": "8",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin for the device."
      },
      {
        "number": "9",
        "name": "Y6",
        "type": "output",
        "description": "Active LOW output 6; all outputs are high when the device is disabled."
      },
      {
        "number": "10",
        "name": "Y5",
        "type": "output",
        "description": "Active LOW output 5; all outputs are high when the device is disabled."
      },
      {
        "number": "11",
        "name": "Y4",
        "type": "output",
        "description": "Active LOW output 4; all outputs are high when the device is disabled."
      },
      {
        "number": "12",
        "name": "Y3",
        "type": "output",
        "description": "Active LOW output 3; all outputs are high when the device is disabled."
      },
      {
        "number": "13",
        "name": "Y2",
        "type": "output",
        "description": "Active LOW output 2; all outputs are high when the device is disabled."
      },
      {
        "number": "14",
        "name": "Y1",
        "type": "output",
        "description": "Active LOW output 1; all outputs are high when the device is disabled."
      },
      {
        "number": "15",
        "name": "Y0",
        "type": "output",
        "description": "Active LOW output 0; all outputs are high when the device is disabled."
      },
      {
        "number": "16",
        "name": "Vcc",
        "type": "power_in",
        "description": "Supply voltage pin; the recommended supply range is 2.0 V to 5.5 V."
      }
    ],
    "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 prints pin 15 as 'Output o (active LOW)'. It is read as Output 0 (Y0) because the pin "
        ],
        "pages_sent": 10,
        "cost_usd": 0.0287,
        "at": "2026-10-27T18:34:15"
      },
      "datasheet": {
        "url": "https://www.diodes.com/assets/Datasheets/74AHC138T16-13.pdf",
        "pages": 10,
        "sha256": "c4fa6989a7fd5b47",
        "source_tier": "mfr"
      },
      "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"
    },
    "models_3d": [
      {
        "file": "74ahc138t16-13.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          5.0,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "6ad5e98224d02a427d9a6b929a28dbc158b9925fba5adec12db05079f1016948",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "74ahc138t16-13-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          5.0,
          1.1
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        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "60b5fad49cd1b4edaca278a93c26cea61171cf7fef8984c85c195a8e74713ec7",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}