SN74CBT3383CDBQR

{
  "slug": "sn74cbt3383cdbqr",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Signal Switches, Multiplexers, Decoders, SSOP-24-150mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
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    "logic",
    "sn74cbt3383cdbqr",
    "factory-2.0.0",
    "extractor-text"
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  "component": {
    "mpn": "SN74CBT3383CDBQR",
    "manufacturer": "Texas Instruments",
    "package": "SSOP-24-150mil",
    "pin_count": 24,
    "category": "Logic",
    "subcategory": "Signal Switches, Multiplexers, Decoders",
    "datasheet": "https://www.ti.com/cn/lit/gpn/sn74cbt3383c",
    "parts": {
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      "lbr": "sn74cbt3383cdbqr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2674517",
      "digikey": "296-19222-2-ND",
      "mouser": "595-SN74CBT3383CDBQR"
    },
    "distributor_check": {
      "checked_at": "2026-10-10T05:13:02Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-19222-2-ND",
        "status": "found",
        "lifecycle": "Active"
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      "mouser": {
        "pn": "595-SN74CBT3383CDBQR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "BE",
        "type": "input",
        "description": "Active-low bus enable input; when high, the A and B ports are in a high-impedance (disconnected) state, and the datasheet recommends a pull-up from BE to VCC to hold that state during power-up or power-down."
      },
      {
        "number": "2",
        "name": "1B1",
        "type": "bidirectional",
        "description": "I/O pin, can be input or output, for the B-side port of bus-switch 1; data I/O is specified for 0 to 5.5 V."
      },
      {
        "number": "3",
        "name": "1A1",
        "type": "bidirectional",
        "description": "I/O pin, can be input or output, for the A-side port of bus-switch 1; data I/O is specified for 0 to 5.5 V."
      },
      {
        "number": "4",
        "name": "1A2",
        "type": "bidirectional",
        "description": "I/O pin, can be input or output, for the A-side port of bus-switch 1; data I/O is specified for 0 to 5.5 V."
      },
      {
        "number": "5",
        "name": "1B2",
        "type": "bidirectional",
        "description": "I/O pin, can be input or output, for the B-side port of bus-switch 1; data I/O is specified for 0 to 5.5 V."
      },
      {
        "number": "6",
        "name": "2B1",
        "type": "bidirectional",
        "description": "I/O pin, can be input or output, for the B-side port of bus-switch 2; data I/O is specified for 0 to 5.5 V."
      },
      {
        "number": "7",
        "name": "2A1",
        "type": "bidirectional",
        "description": "I/O pin, can be input or output, for the A-side port of bus-switch 2; data I/O is specified for 0 to 5.5 V."
      },
      {
        "number": "8",
        "name": "2A2",
        "type": "bidirectional",
        "description": "I/O pin, can be input or output, for the A-side port of bus-switch 2; data I/O is specified for 0 to 5.5 V."
      },
      {
        "number": "9",
        "name": "2B2",
        "type": "bidirectional",
        "description": "I/O pin, can be input or output, for the B-side port of bus-switch 2; data I/O is specified for 0 to 5.5 V."
      },
      {
        "number": "10",
        "name": "3B1",
        "type": "bidirectional",
        "description": "I/O pin, can be input or output, for the B-side port of bus-switch 3; data I/O is specified for 0 to 5.5 V."
      },
      {
        "number": "11",
        "name": "3A1",
        "type": "bidirectional",
        "description": "I/O pin, can be input or output, for the A-side port of bus-switch 3; data I/O is specified for 0 to 5.5 V."
      },
      {
        "number": "12",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin; all voltages are referenced to this network ground terminal."
      },
      {
        "number": "13",
        "name": "BX",
        "type": "input",
        "description": "Select input that sets the data path of the bus exchange: when low, xA1 is tied to xB1 and xA2 to xB2; when high, xA1 is tied to xB2 and xA2 to xB1."
      },
      {
        "number": "14",
        "name": "3A2",
        "type": "bidirectional",
        "description": "I/O pin, can be input or output, for the A-side port of bus-switch 3; data I/O is specified for 0 to 5.5 V."
      },
      {
        "number": "15",
        "name": "3B2",
        "type": "bidirectional",
        "description": "I/O pin, can be input or output, for the B-side port of bus-switch 3; data I/O is specified for 0 to 5.5 V."
      },
      {
        "number": "16",
        "name": "4B1",
        "type": "bidirectional",
        "description": "I/O pin, can be input or output, for the B-side port of bus-switch 4; data I/O is specified for 0 to 5.5 V."
      },
      {
        "number": "17",
        "name": "4A1",
        "type": "bidirectional",
        "description": "I/O pin, can be input or output, for the A-side port of bus-switch 4; data I/O is specified for 0 to 5.5 V."
      },
      {
        "number": "18",
        "name": "4A2",
        "type": "bidirectional",
        "description": "I/O pin, can be input or output, for the A-side port of bus-switch 4; data I/O is specified for 0 to 5.5 V."
      },
      {
        "number": "19",
        "name": "4B2",
        "type": "bidirectional",
        "description": "I/O pin, can be input or output, for the B-side port of bus-switch 4; data I/O is specified for 0 to 5.5 V."
      },
      {
        "number": "20",
        "name": "5B1",
        "type": "bidirectional",
        "description": "I/O pin, can be input or output, for the B-side port of bus-switch 5; data I/O is specified for 0 to 5.5 V."
      },
      {
        "number": "21",
        "name": "5A1",
        "type": "bidirectional",
        "description": "I/O pin, can be input or output, for the A-side port of bus-switch 5; data I/O is specified for 0 to 5.5 V."
      },
      {
        "number": "22",
        "name": "5A2",
        "type": "bidirectional",
        "description": "I/O pin, can be input or output, for the A-side port of bus-switch 5; data I/O is specified for 0 to 5.5 V."
      },
      {
        "number": "23",
        "name": "5B2",
        "type": "bidirectional",
        "description": "I/O pin, can be input or output, for the B-side port of bus-switch 5; data I/O is specified for 0 to 5.5 V."
      },
      {
        "number": "24",
        "name": "VCC",
        "type": "power_in",
        "description": "Power supply pin; the recommended supply range is 4 V to 5.5 V and each VCC pin should have a bypass capacitor (0.1 µF for a single-supply device)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
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        "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 datasheet pin table gives only the generic function 'I/O pin, can be input or output' for each d; VCC and GND were mapped to KiCad power_in from the datasheet's 'P' and 'G' designations. The pin tab"
        ],
        "pages_sent": 25,
        "cost_usd": 0.0884,
        "at": "2026-10-10T05:12:44"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/sn74cbt3383c",
        "pages": 25,
        "sha256": "8635eb8c6188328d",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 24,
        "described": 24,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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}