CY74FCT157CTSOC

Overview

The CY74FCT157CTSOC is a quad 2-input multiplexer with 3-state outputs manufactured by Texas Instruments under the FCT logic series. It operates within a supply voltage range of 4.75 V to 5.25 V and features a propagation delay of 4.3 ns at 5 V. The device contains four independent circuits and is housed in a 16-pin SOIC-Narrow package. It supports surface mount installation and functions reliably across an operating temperature range from -40°C to +85°C.

Feature Summary

• Integrates four independent 2-to-1 data selectors within a single integrated circuit
• Provides high-impedance 3-state outputs for effective bus line driving capabilities
• Delivers fast switching performance with low propagation delay characteristics

Applications

• High-speed data routing in digital communication systems
• Signal selection in microprocessor-based control architectures
• Address decoding and data path configuration in embedded controllers

Procurement Notes

Verify the manufacturer designation carefully, as this component is produced by Texas Instruments despite the requested brand. Confirm the specific suffix indicates the SOIC-16 tube packaging variant. Ensure compatibility with standard 5V logic levels and check for moisture sensitivity handling requirements during assembly processes.

Selection Notes

Select this component when requiring multiple independent signal paths in a compact footprint. It is suitable for designs needing precise timing control with sub-5ns delays. Consider the 3-state output feature if bidirectional bus sharing is required. Verify that the narrow SOIC package fits the available PCB real estate constraints.

Part Context

This part belongs to the CY74FCT157T series of high-speed CMOS logic devices. It serves as a direct replacement for legacy 74FCT157 equivalents while offering improved speed and lower power consumption. The FCT technology ensures compatibility with standard TTL and CMOS logic families commonly found in industrial and commercial electronic equipment.

Replacement Considerations

Direct substitutes include the CY74FCT157CTD (SOIC-16 tube) and CY74FCT157CTQCT (SSOP-16 reel). Verify pinout compatibility and electrical specifications before swapping packages.