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SN74CBT3383CPWR

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Texas Instruments Signal Switches / Encoders & Decoders / Multiplexers, TSSOP-24. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SN74CBT3383CPWR

Texas Instruments · Signal Switches / Encoders & Decoders / Multiplexers · TSSOP-24

SN74CBT3383CPWR from Texas Instruments, in a TSSOP-24. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 BE input Active-low input enable pin; when BE is low the A and B ports are connected, and when BE is high the A and B ports are disconnected (high-impedance).
2 1B1 bidirectional I/O pin, can be input or output; data I/O voltage range is 0 to 5.5 V.
3 1A1 bidirectional I/O pin, can be input or output; data I/O voltage range is 0 to 5.5 V.
4 1A2 bidirectional I/O pin, can be input or output; data I/O voltage range is 0 to 5.5 V.
5 1B2 bidirectional I/O pin, can be input or output; data I/O voltage range is 0 to 5.5 V.
6 2B1 bidirectional I/O pin, can be input or output; data I/O voltage range is 0 to 5.5 V.
7 2A1 bidirectional I/O pin, can be input or output; data I/O voltage range is 0 to 5.5 V.
8 2A2 bidirectional I/O pin, can be input or output; data I/O voltage range is 0 to 5.5 V.
9 2B2 bidirectional I/O pin, can be input or output; data I/O voltage range is 0 to 5.5 V.
10 3B1 bidirectional I/O pin, can be input or output; data I/O voltage range is 0 to 5.5 V.
11 3A1 bidirectional I/O pin, can be input or output; data I/O voltage range is 0 to 5.5 V.
12 GND power_in Ground pin.
13 BX input Select pin that controls the bus-exchange data path; when BX is low xA1 is connected to xB1 and xA2 to xB2, and when BX is high xA1 is connected to xB2 and xA2 to xB1.
14 3A2 bidirectional I/O pin, can be input or output; data I/O voltage range is 0 to 5.5 V.
15 3B2 bidirectional I/O pin, can be input or output; data I/O voltage range is 0 to 5.5 V.
16 4B1 bidirectional I/O pin, can be input or output; data I/O voltage range is 0 to 5.5 V.
17 4A1 bidirectional I/O pin, can be input or output; data I/O voltage range is 0 to 5.5 V.
18 4A2 bidirectional I/O pin, can be input or output; data I/O voltage range is 0 to 5.5 V.
19 4B2 bidirectional I/O pin, can be input or output; data I/O voltage range is 0 to 5.5 V.
20 5B1 bidirectional I/O pin, can be input or output; data I/O voltage range is 0 to 5.5 V.
21 5A1 bidirectional I/O pin, can be input or output; data I/O voltage range is 0 to 5.5 V.
22 5A2 bidirectional I/O pin, can be input or output; data I/O voltage range is 0 to 5.5 V.
23 5B2 bidirectional I/O pin, can be input or output; data I/O voltage range is 0 to 5.5 V.
24 VCC power_in Power supply pin; operating range is 4 V to 5.5 V.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package TSSOP-24
Category Logic ICs
Pins 24

CAD (KiCad official)

  • Symbol: SN74CBT3383CPWR
  • Footprint: Package_SO:TSSOP-24_4.4x7.8mm_P0.65mm
  • 3D model: TSSOP-24 (KiCad packages3D, STEP)
  • 3D model files: sn74cbt3383cpwr-etched.step / sn74cbt3383cpwr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74cbt3383cpwr.step / sn74cbt3383cpwr.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (25 pp, sha256 7b02186114b4d4e0, retrieved 2026-10-08, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF