SN74CBT3306DR

{
  "schema_version": 1,
  "type": "component",
  "slug": "sn74cbt3306dr",
  "title": "SN74CBT3306DR",
  "brief": "Texas Instruments Signal Switches, Multiplexers, Decoders, SOIC-8. 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",
    "sn74cbt3306dr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "SN74CBT3306DR",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Logic",
    "subcategory": "Signal Switches, Multiplexers, Decoders",
    "datasheet": "https://www.ti.com/lit/ds/symlink/sn74cbt3306.pdf",
    "parts": {
      "symbol": "sn74cbt3306dr.kicad_sym",
      "footprint": "sn74cbt3306dr.kicad_mod",
      "model_3d": "sn74cbt3306dr-hero.glb",
      "model_3d_plain": "sn74cbt3306dr.glb",
      "model_3d_step": "sn74cbt3306dr-etched.step",
      "model_3d_step_plain": "sn74cbt3306dr.step",
      "lbr": "sn74cbt3306dr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2674579",
      "digikey": "296-SN74CBT3306DRTR-ND",
      "mouser": "595-SN74CBT3306DR"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T23:03:59Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-SN74CBT3306DRTR-ND",
        "status": "found",
        "lifecycle": "Obsolete"
      },
      "mouser": {
        "pn": "595-SN74CBT3306DR",
        "status": "found",
        "lifecycle": "End of Life"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "1OE",
        "type": "input",
        "description": "Output-enable for bus switch 1; when high the 1A-1B switch is disabled, and when low the A port is connected to the B port (TTL-compatible input). Unused control inputs must be held at VCC or GND."
      },
      {
        "number": "2",
        "name": "1A",
        "type": "passive",
        "description": "A port of bus switch 1, a 5-Ω FET pass switch to 1B when 1OE is low; continuous channel current is limited to 128 mA."
      },
      {
        "number": "3",
        "name": "1B",
        "type": "passive",
        "description": "B port of bus switch 1, a 5-Ω FET pass switch to 1A when 1OE is low; continuous channel current is limited to 128 mA."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference; unused control inputs must be held at VCC or GND for proper operation."
      },
      {
        "number": "5",
        "name": "2A",
        "type": "passive",
        "description": "A port of bus switch 2, a 5-Ω FET pass switch to 2B when 2OE is low; continuous channel current is limited to 128 mA."
      },
      {
        "number": "6",
        "name": "2B",
        "type": "passive",
        "description": "B port of bus switch 2, a 5-Ω FET pass switch to 2A when 2OE is low; continuous channel current is limited to 128 mA."
      },
      {
        "number": "7",
        "name": "2OE",
        "type": "input",
        "description": "Output-enable for bus switch 2; when high the 2A-2B switch is disabled, and when low the A port is connected to the B port (TTL-compatible input). Unused control inputs must be held at VCC or GND."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage, recommended 4 V to 5.5 V; absolute maximum is -0.5 V to 7 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: Pin numbers for pins 5-8 are read from the top-view drawing, where pin numbers and names are listed ; The datasheet does not state a pin type for the A/B switch terminals; 'passive' was chosen because t"
        ],
        "pages_sent": 11,
        "cost_usd": 0.0547,
        "at": "2026-10-08T23:02:55"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/sn74cbt3306.pdf",
        "pages": 11,
        "sha256": "305f77732da91374",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "sn74cbt3306dr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sn74cbt3306dr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "40126b11ece2a92851cf949b9044aded50df5acff5f64f3be5b931de118394fc",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SOIC-8",
      "Category": "Logic",
      "Pins": "8"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "sn74cbt3306dr"
  ],
  "discovery_pitch": "SN74CBT3306DR (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sn74cbt3306dr.kicad_sym",
    "sn74cbt3306dr.kicad_mod",
    "sn74cbt3306dr.glb",
    "sn74cbt3306dr.step",
    "sn74cbt3306dr.lbr",
    "docs/hero.png",
    "docs/sn74cbt3306dr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sn74cbt3306dr-hero.glb",
    "sn74cbt3306dr-hero.overlay.json"
  ],
  "visibility": {
    "public": true
  }
}