CY74FCT157ATSOC

Overview

The CY74FCT157ATSOC is a quad 2-input multiplexer from the FCT logic series, manufactured by Texas Instruments. It features four independent data selectors in a single SOIC-16 package. The device operates within a supply voltage range of 4.75 V to 5.25 V and ensures a propagation delay of 4.3 ns at 5 V. It supports surface-mount installation and functions reliably across an industrial temperature range of -40°C to +85°C.

Feature Summary

• Integrates four independent 2-to-1 data selectors within a compact 16-pin narrow SOIC package for space-efficient designs.
• Delivers high-speed signal routing with a specified propagation delay of 4.3 ns at 5 V operation.
• Supports standard CMOS logic levels compatible with TTL inputs, facilitating interface with various digital systems.

Applications

• Data routing in computer systems and instrumentation
• Signal selection in industrial control applications
• High-speed data selector circuits

Procurement Notes

Verify the specific suffix 'A' indicates automotive qualification status as per official documentation. Confirm the 'SOC' designation corresponds to the SOIC-16 narrow package variant. Ensure compliance with RoHS directives and check for any recent product change notices regarding assembly materials or environmental certifications before finalizing procurement.

Selection Notes

Select this component when multiple independent 2-input signal paths are required in a limited footprint. The FCT series offers faster switching speeds compared to standard 74HC devices while maintaining CMOS power efficiency. Verify that the operating voltage remains strictly between 4.75 V and 5.25 V to ensure timing specifications are met.

Part Context

This part belongs to the CY74FCT157T family of multiplexers. It shares functional similarities with other FCT series logic ICs but is distinguished by its quad configuration and specific package type. It serves as a direct replacement for legacy 74FCT157 equivalents in existing circuit designs requiring upgraded performance or availability.

Replacement Considerations

Check for pin-compatible alternatives such as the CY74FCT157CTD or CY74FCT157CTQCT if different packaging (SOIC vs SSOP) or reel quantities are required. Ensure substitute parts maintain the same 4.3 ns propagation delay and 5 V operating voltage constraints.