CD74HCT137M96

{
  "schema_version": 1,
  "type": "component",
  "slug": "cd74hct137m96",
  "title": "CD74HCT137M96",
  "brief": "Texas Instruments Signal Switches, Multiplexers, Decoders, SOIC-16. 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",
    "cd74hct137m96",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "CD74HCT137M96",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-16",
    "pin_count": 16,
    "category": "Logic",
    "subcategory": "Signal Switches, Multiplexers, Decoders",
    "datasheet": "https://www.ti.com/cn/lit/gpn/cd74hct237",
    "parts": {
      "symbol": "cd74hct137m96.kicad_sym",
      "footprint": "cd74hct137m96.kicad_mod",
      "model_3d": "cd74hct137m96-etched.glb",
      "model_3d_plain": "cd74hct137m96.glb",
      "model_3d_step": "cd74hct137m96-etched.step",
      "model_3d_step_plain": "cd74hct137m96.step",
      "lbr": "cd74hct137m96.lbr"
    },
    "distributor_links": {
      "lcsc": "C2674710"
    },
    "pins": [
      {
        "number": "1",
        "name": "A0",
        "type": "input",
        "description": "Binary address select input 0; combined with A1 and A2 selects one of eight outputs; all inputs accept LSTTL-compatible levels (VIH ≥ 2 V, VIL ≤ 0.8 V at VCC = 4.5-5.5 V)."
      },
      {
        "number": "2",
        "name": "A1",
        "type": "input",
        "description": "Binary address select input 1; combined with A0 and A2 selects one of eight outputs; can be latched by LE."
      },
      {
        "number": "3",
        "name": "A2",
        "type": "input",
        "description": "Binary address select input 2; combined with A0 and A1 selects one of eight outputs; can be latched by LE."
      },
      {
        "number": "4",
        "name": "LE",
        "type": "input",
        "description": "Latch Enable input; active HIGH latches address inputs A0-A2 isolating outputs from subsequent address changes; LOW makes outputs transparent to address inputs."
      },
      {
        "number": "5",
        "name": "OE1",
        "type": "input",
        "description": "Output Enable 1 input (active LOW); HIGH forces all Y outputs inactive (HIGH); must be LOW together with OE0 HIGH to enable decoding."
      },
      {
        "number": "6",
        "name": "OE0",
        "type": "input",
        "description": "Output Enable 0 input (active HIGH); LOW forces all Y outputs inactive (HIGH); must be HIGH together with OE1 LOW to enable decoding."
      },
      {
        "number": "7",
        "name": "Y7",
        "type": "output",
        "description": "Active-LOW decoded output 7; LOW when A2=H, A1=H, A0=H, LE=L, OE0=H, OE1=L; max output sink/source current ±25 mA, VOL ≤ 0.4 V at IOL = 4 mA."
      },
      {
        "number": "8",
        "name": "GND",
        "type": "power_in",
        "description": "Ground supply reference, 0 V; maximum DC VCC or ground current ±50 mA."
      },
      {
        "number": "9",
        "name": "Y6",
        "type": "output",
        "description": "Active-LOW decoded output 6; LOW when A2=H, A1=H, A0=L, LE=L, OE0=H, OE1=L; max output sink/source current ±25 mA."
      },
      {
        "number": "10",
        "name": "Y5",
        "type": "output",
        "description": "Active-LOW decoded output 5; LOW when A2=H, A1=L, A0=H, LE=L, OE0=H, OE1=L; max output sink/source current ±25 mA."
      },
      {
        "number": "11",
        "name": "Y4",
        "type": "output",
        "description": "Active-LOW decoded output 4; LOW when A2=H, A1=L, A0=L, LE=L, OE0=H, OE1=L; max output sink/source current ±25 mA."
      },
      {
        "number": "12",
        "name": "Y3",
        "type": "output",
        "description": "Active-LOW decoded output 3; LOW when A2=L, A1=H, A0=H, LE=L, OE0=H, OE1=L; max output sink/source current ±25 mA."
      },
      {
        "number": "13",
        "name": "Y2",
        "type": "output",
        "description": "Active-LOW decoded output 2; LOW when A2=L, A1=H, A0=L, LE=L, OE0=H, OE1=L; max output sink/source current ±25 mA."
      },
      {
        "number": "14",
        "name": "Y1",
        "type": "output",
        "description": "Active-LOW decoded output 1; LOW when A2=L, A1=L, A0=H, LE=L, OE0=H, OE1=L; max output sink/source current ±25 mA."
      },
      {
        "number": "15",
        "name": "Y0",
        "type": "output",
        "description": "Active-LOW decoded output 0; LOW when A2=L, A1=L, A0=L, LE=L, OE0=H, OE1=L; propagation delay tPLH/tPHL ≤ 38 ns at VCC = 4.5 V, CL = 50 pF, 25 °C."
      },
      {
        "number": "16",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply voltage; 4.5 V to 5.5 V operating range for HCT type; quiescent supply current ICC ≤ 8 µA typical, 80 µA max at 25 °C."
      }
    ],
    "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": [
          "extractor flagged: No explicit pin assignment table found in datasheet. Pinout derived from functional block diagram (P"
        ],
        "pages_sent": 27,
        "cost_usd": 0.5206,
        "at": "2026-09-21T20:16:04"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/cd74hct237",
        "pages": 27,
        "sha256": "ed9eabdb879f73d9",
        "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"
    },
    "models_3d": [
      {
        "file": "cd74hct137m96.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          9.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "d5eeddb4c0b304dc61950919b126fc61d7586abd5f16ab71a2a79759ec6498bf",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cd74hct137m96-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          9.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "8d0a8617a295e3bb5e1fb9c8ecbcc6cef02d448f2fb2ffc27655cebb7a89ff35",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SOIC-16",
      "Category": "Logic",
      "Pins": "16"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "cd74hct137m96"
  ],
  "discovery_pitch": "CD74HCT137M96 (Texas Instruments) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "cd74hct137m96.kicad_sym",
    "cd74hct137m96.kicad_mod",
    "cd74hct137m96.glb",
    "cd74hct137m96.step",
    "cd74hct137m96.lbr",
    "docs/hero.png",
    "docs/cd74hct137m96-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-24T18:57:21.230Z"
}