CY74FCT2257ATQCT

Overview

The CY74FCT2257ATQCT is a quad 2-input multiplexer from the FCT logic series, manufactured by Texas Instruments. It features four independent channels, each selecting between two data inputs based on control signals. The device operates within a supply voltage range of 4.75 V to 5.25 V and exhibits a propagation delay of 5 ns at 5 V. It is housed in an SSOP-16 package suitable for surface mount technology. The component supports an operating temperature range from -40°C to +85°C and includes three-state outputs.

Feature Summary

• Provides four independent 2-to-1 multiplexing channels for signal routing
• Features three-state outputs for bus-oriented memory driving
• Compatible with TTL logic levels for direct interface with microprocessors

Applications

• Bus-oriented memory addressing systems
• Signal path selection in digital communication interfaces
• Data routing in industrial control applications

Procurement Notes

Verify the manufacturer designation as Texas Instruments, as Cypress Semiconductor Corp was acquired and its product lines integrated into TI. Confirm the specific suffix 'TQC' corresponds to the SSOP-16 package and tape-and-reel or cut-tape availability. Ensure compliance with RoHS directives and check for moisture sensitivity level requirements during storage and handling procedures.

Selection Notes

Select this component when a compact solution for multiple low-speed data paths is required. The FCT series offers faster switching speeds compared to standard HC logic while maintaining CMOS power efficiency. Consider the SSOP-16 footprint constraints and verify that the 5V supply rail matches the system design. Evaluate thermal dissipation needs given the 600 mW power rating.

Part Context

This part belongs to the CY74FCT2257T family of high-speed CMOS multiplexers. It serves as a functional equivalent to other industry-standard quad multiplexers but utilizes Fast CMOS technology for improved performance. The device is designed for applications requiring reliable data selection with minimal power consumption in 5V logic environments.

Replacement Considerations

Direct substitutes include the CY74FCT157CTQCT for similar multiplexing functions with potentially different timing characteristics. Verify pin compatibility and electrical specifications before swapping components to ensure system integrity.