CY74FCT399ATSOC

Overview

The CY74FCT399ATSOC is a quadruple 2-input multiplexer with storage, part of the FCT logic series. It features four independent circuits in a 16-pin SOIC (DW) package. The device operates within a supply voltage range of 4.75 V to 5.25 V and supports a propagation delay of 6.1 ns at 5 V. It functions as a data selector/multiplexer with integrated storage capabilities, suitable for surface-mount installation.

Feature Summary

• Integrates four independent 2-to-1 multiplexing channels with storage functionality
• Provides high-speed signal selection with specified propagation delay characteristics
• Supports standard CMOS logic levels within a narrow 5 V power supply window

Applications

• Data routing in digital communication systems
• Signal selection in microprocessor-based control units
• Address/data bus switching in embedded hardware

Procurement Notes

Verify the specific suffix 'A' against the required datasheet revision, as it may indicate temperature or material variations. Confirm the SOIC-16 package dimensions match the PCB footprint. Ensure the supplier provides traceability documentation for the Texas Instruments manufacturing origin. Check RoHS compliance status directly from the manufacturer's latest product information file before finalizing procurement orders.

Selection Notes

Select this component when four independent 2-input multiplexers with storage are required in a compact surface-mount package. It is appropriate for designs needing fast switching speeds within a strict 5 V operating range. Compare pin compatibility with legacy FCT devices if replacing older components. Ensure the application environment stays within the -40°C to +85°C industrial temperature limits specified for this variant.

Part Context

This part belongs to the CY74FCT399T family of quad multiplexers. It shares functional similarities with the CY74FCT399CTSOC but may differ in packaging or qualification details. The FCT series is designed for high-speed CMOS applications, offering performance comparable to LS-TTL while maintaining lower power consumption typical of CMOS technology.

Replacement Considerations

The CY74FCT399CTSOC is a documented alternative within the same family. Verify pinout compatibility and electrical specifications before substitution. Other FCT-series multiplexers may require circuit redesign due to differing input/output configurations.