CD74HCT157EX

Overview

The CD74HCT157EX is a quad 2-input multiplexer manufactured by Harris Corporation, belonging to the 74HCT series. It operates within a supply voltage range of 4.5V to 5.5V and is housed in a 16-PDIP package. The device features four independent multiplexers, each selecting one of two data inputs based on control signals. It is designed for high-speed CMOS logic applications with low power consumption and high noise immunity.

Feature Summary

• Quad 2-input multiplexer architecture providing four independent selection channels
• High-speed CMOS technology ensuring fast switching performance
• Low power consumption characteristics suitable for energy-efficient designs
• High noise immunity for reliable operation in electrically noisy environments

Applications

• Data routing in digital systems
• Signal selection in microprocessor interfaces
• Address decoding circuits
• Parallel-to-serial conversion modules

Procurement Notes

Verify component authenticity through official Harris Corporation channels or authorized distributors. Check for RoHS non-compliance status as indicated in public records. Confirm package integrity and pin alignment upon receipt. Ensure storage conditions meet specified humidity sensitivity levels to prevent damage before soldering.

Selection Notes

Select this component when a quad 2-input multiplexer is required in HCT logic families. Consider the 16-PDIP package for through-hole mounting requirements. Verify compatibility with 4.5V to 5.5V supply voltages. Evaluate noise immunity needs against standard CMOS alternatives if operating in high-interference environments.

Part Context

This part belongs to the Harris Corporation 74HCT series of high-speed CMOS logic devices. The 74HCT family is compatible with TTL inputs while offering CMOS output characteristics. The CD74HCT157EX specifically implements the multiplexer function within this standardized logic family, ensuring interoperability with other 74HCT components in system designs.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Users should consult official Harris Corporation replacement guides or equivalent manufacturer datasheets for cross-referencing compatible components.