SN74CBT3257PW

Overview

The SN74CBT3257PW is a 4-bit 1-of-2 FET multiplexer/demultiplexer from the CBT logic family. It operates on a single supply voltage ranging from 4 V to 5.5 V and supports TTL-compatible input levels. The device features four independent channels with output-enable (OE) and select-control (S) inputs to manage data routing between A-input ports and B1/B2 outputs. Packaged in a 16-pin TSSOP, it functions within an operating temperature range of -40°C to +85°C.

Feature Summary

• High-speed switching capability enabled by low on-state resistance
• TTL-compatible input levels for direct interface with standard logic
• Independent control of four channels via OE and S inputs

Applications

• Data routing in digital systems
• Signal path selection in communication equipment
• Multiplexing applications requiring TTL compatibility

Procurement Notes

Verify the specific ordering suffix 'PW' corresponds to the tube packaging format rather than tape-and-reel variants like 'PWR'. Confirm that the application environment strictly adheres to the 4 V to 5.5 V supply voltage limits. Ensure all unused control inputs are tied to VCC or GND to maintain proper operation and prevent undefined states.

Selection Notes

Select this component when a 4-channel multiplexer with TTL-compatible inputs is required at 5 V logic levels. It is suitable for designs needing low propagation delay and minimal signal distortion. Consider alternative packages if surface-mount density requirements differ from the TSSOP form factor.

Part Context

This part belongs to the SN74CBT3257 series, which includes various package options such as SOIC, SSOP, and QFN. The PW suffix specifically denotes the TSSOP package configuration. Other variants share identical electrical characteristics but differ in physical footprint and shipping quantities.

Replacement Considerations

SN74CBT3257PWR