main
Ray cd74hc154m96: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) d13bcda
{
  "schema_version": 1,
  "type": "component",
  "slug": "cd74hc154m96",
  "title": "CD74HC154M96",
  "brief": "Texas Instruments Signal Switches / Encoders & Decoders / Multiplexers, SOIC-24-300mil. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "logic",
    "cd74hc154m96"
  ],
  "component": {
    "mpn": "CD74HC154M96",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-24-300mil",
    "pin_count": 24,
    "category": "Logic",
    "subcategory": "Signal Switches / Encoders & Decoders / Multiplexers",
    "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2303011100_Texas-Instruments-CD74HC154M96_C2832236.pdf",
    "parts": {
      "symbol": "cd74hc154m96.kicad_sym",
      "footprint": "cd74hc154m96.kicad_mod",
      "model_3d": "cd74hc154m96-etched.glb",
      "model_3d_plain": "cd74hc154m96.glb",
      "model_3d_step": "cd74hc154m96-etched.step",
      "model_3d_step_plain": "cd74hc154m96.step",
      "lbr": "cd74hc154m96.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "Y0",
        "type": "output",
        "description": "Decoded active-LOW output 0. Asserts LOW when address inputs A3:A0 = 0000 and both enables are LOW; HIGH otherwise."
      },
      {
        "number": "2",
        "name": "Y1",
        "type": "output",
        "description": "Decoded active-LOW output 1. Asserts LOW when A3:A0 = 0001 and both enables are LOW."
      },
      {
        "number": "3",
        "name": "Y2",
        "type": "output",
        "description": "Decoded active-LOW output 2. Asserts LOW when A3:A0 = 0010 and both enables are LOW."
      },
      {
        "number": "4",
        "name": "Y3",
        "type": "output",
        "description": "Decoded active-LOW output 3. Asserts LOW when A3:A0 = 0011 and both enables are LOW."
      },
      {
        "number": "5",
        "name": "Y4",
        "type": "output",
        "description": "Decoded active-LOW output 4. Asserts LOW when A3:A0 = 0100 and both enables are LOW."
      },
      {
        "number": "6",
        "name": "Y5",
        "type": "output",
        "description": "Decoded active-LOW output 5. Asserts LOW when A3:A0 = 0101 and both enables are LOW."
      },
      {
        "number": "7",
        "name": "Y6",
        "type": "output",
        "description": "Decoded active-LOW output 6. Asserts LOW when A3:A0 = 0110 and both enables are LOW."
      },
      {
        "number": "8",
        "name": "Y7",
        "type": "output",
        "description": "Decoded active-LOW output 7. Asserts LOW when A3:A0 = 0111 and both enables are LOW."
      },
      {
        "number": "9",
        "name": "Y8",
        "type": "output",
        "description": "Decoded active-LOW output 8. Asserts LOW when A3:A0 = 1000 and both enables are LOW."
      },
      {
        "number": "10",
        "name": "Y9",
        "type": "output",
        "description": "Decoded active-LOW output 9. Asserts LOW when A3:A0 = 1001 and both enables are LOW."
      },
      {
        "number": "11",
        "name": "Y10",
        "type": "output",
        "description": "Decoded active-LOW output 10. Asserts LOW when A3:A0 = 1010 and both enables are LOW."
      },
      {
        "number": "12",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference (0 V). Supply return for all internal logic."
      },
      {
        "number": "13",
        "name": "Y11",
        "type": "output",
        "description": "Decoded active-LOW output 11. Asserts LOW when A3:A0 = 1011 and both enables are LOW."
      },
      {
        "number": "14",
        "name": "Y12",
        "type": "output",
        "description": "Decoded active-LOW output 12. Asserts LOW when A3:A0 = 1100 and both enables are LOW."
      },
      {
        "number": "15",
        "name": "Y13",
        "type": "output",
        "description": "Decoded active-LOW output 13. Asserts LOW when A3:A0 = 1101 and both enables are LOW."
      },
      {
        "number": "16",
        "name": "Y14",
        "type": "output",
        "description": "Decoded active-LOW output 14. Asserts LOW when A3:A0 = 1110 and both enables are LOW."
      },
      {
        "number": "17",
        "name": "Y15",
        "type": "output",
        "description": "Decoded active-LOW output 15. Asserts LOW when A3:A0 = 1111 and both enables are LOW."
      },
      {
        "number": "18",
        "name": "E2",
        "type": "input",
        "description": "Active-LOW enable input 2. Both E1 and E2 must be LOW to enable the decoder; otherwise all Y outputs are forced HIGH."
      },
      {
        "number": "19",
        "name": "E1",
        "type": "input",
        "description": "Active-LOW enable input 1. Both E1 and E2 must be LOW to enable the decoder; otherwise all Y outputs are forced HIGH."
      },
      {
        "number": "20",
        "name": "A3",
        "type": "input",
        "description": "Binary address input bit 3 (MSB). CMOS-level logic input selecting one of the sixteen Y outputs when the device is enabled."
      },
      {
        "number": "21",
        "name": "A2",
        "type": "input",
        "description": "Binary address input bit 2. CMOS-level logic input selecting one of the sixteen Y outputs when the device is enabled."
      },
      {
        "number": "22",
        "name": "A1",
        "type": "input",
        "description": "Binary address input bit 1. CMOS-level logic input selecting one of the sixteen Y outputs when the device is enabled."
      },
      {
        "number": "23",
        "name": "A0",
        "type": "input",
        "description": "Binary address input bit 0 (LSB). CMOS-level logic input selecting one of the sixteen Y outputs when the device is enabled."
      },
      {
        "number": "24",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply voltage input, 2 V to 6 V operating range. Bypass locally with a 0.1 uF ceramic capacitor to GND."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2303011100_Texas-Instruments-CD74HC154M96_C2832236.pdf",
        "pages": 15,
        "sha256": "e9dd64aa8bcfe428",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 24,
        "described": 24,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
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    "logic": {
      "family_id": "74HC154",
      "logic_family": "74HC",
      "function_code": "154",
      "function_class": "Decoder",
      "function_name": "4-to-16 Line Decoder/Demultiplexer",
      "manufacturer": "Texas Instruments",
      "is_specialty": false
    },
    "models_3d": [
      {
        "file": "cd74hc154m96.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          10.3,
          15.4,
          2.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "4b0d20f82f5b0124fecfe11c941274a3c865a30f7baee8b8fadd7df55972d4cd",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cd74hc154m96-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
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        "sha256": "2d1d453489c2df185600d6581f2743fa39af0574b85f96d8a70bf6cdc83d1bdf",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SOIC-24-300mil",
      "Category": "Logic",
      "Pins": "24"
    }
  },
  "sections": [
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    "viewers",
    "readme",
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    "info"
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  "discovery_triggers": [
    "cd74hc154m96"
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  "discovery_pitch": "CD74HC154M96 (Texas Instruments) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
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    "path": "docs/hero.png"
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  "files": [
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  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "CD74HC154M96",
      "kind": "packaging"
    },
    {
      "mpn": "CD74HC154M96M",
      "kind": "packaging"
    },
    {
      "mpn": "CD74HC154M96MT",
      "kind": "packaging"
    },
    {
      "mpn": "CD74HC154M96E",
      "kind": "packaging"
    },
    {
      "mpn": "CD74HC154M96EN",
      "kind": "packaging"
    },
    {
      "mpn": "CD74HC154M96NSR",
      "kind": "packaging"
    },
    {
      "mpn": "CD74HC154M96PW",
      "kind": "packaging"
    },
    {
      "mpn": "CD74HC154M96PWR",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-24T18:53:34.234Z"
}