CD74HC688M

Comparators Overview

The CD74HC688M is an 8-bit magnitude comparator manufactured by Harris Corporation, belonging to the 74HC CMOS logic series. It features inverted outputs indicating equality between two 8-bit binary words. The device operates on a single supply voltage ranging from 2V to 6V and supports data rates up to 38MHz. Designed for surface-mount applications, it utilizes a 20-SOIC package with a width of 7.50mm. The component functions within an industrial temperature range of -55°C to 125°C.

Comparators Feature Summary

• Performs parallel comparison of two 8-bit binary numbers
• Provides active-low output signal when input values are identical
• Utilizes high-speed CMOS technology for efficient power consumption

Comparators Applications

• Digital identity verification circuits
• Address decoding systems
• Data validation logic in microprocessor interfaces

Comparators Procurement Notes

Verify RoHS compliance status as documentation indicates non-compliance. Confirm package dimensions match 20-SOIC specifications. Check manufacturer availability as original production may be discontinued. Ensure operating voltage ranges align with system requirements before integration.

Comparators Selection Notes

Select this component for applications requiring precise equality checking of 8-bit digital signals. Consider the inverted output polarity when designing downstream logic gates. Verify thermal management capabilities for operation within the specified wide temperature range.

Comparators Part Context

This part belongs to the standard 74HC family of high-speed CMOS logic devices. It serves as a fundamental building block for digital comparison tasks. The manufacturer Harris Corporation produced this specific variant before potential discontinuation or acquisition by other semiconductor entities.

Comparators Replacement Considerations

Compatible substitutes include Texas Instruments SN74HC688N or equivalent 8-bit magnitude comparators from other manufacturers. Ensure pinout compatibility and electrical characteristics match the original design specifications.