74HC85DB,118

Comparators Overview

The 74HC85DB,118 is a 4-bit magnitude comparator from the Nexperia 74HC series. It compares two 4-bit binary words to determine if A is less than, equal to, or greater than B. The device features active high outputs for these conditions and includes cascading inputs for multi-bit expansion. It operates within a supply voltage range of 2 V to 6 V and supports an operating temperature range of -40°C to +125°C. Packaged in a 16-pin SSOP housing, it is designed for surface-mount applications.

Comparators Feature Summary

• Performs 4-bit magnitude comparison with distinct outputs for A<B, A=B, and A>B conditions
• Supports cascading via dedicated inputs to expand comparison width beyond four bits
• Operates across extended industrial temperature ranges up to 125°C

Comparators Applications

• Digital arithmetic logic units requiring magnitude evaluation
• Address decoding systems comparing address bus values
• Control logic determining relative sensor data magnitudes

Comparators Procurement Notes

Verify component status as this part may be obsolete or discontinued by the manufacturer. Confirm availability through authorized distributors only. Check datasheet revisions for any functional updates. Ensure compatibility with existing PCB footprints and signal levels before integration into new designs.

Comparators Selection Notes

Select this component when 4-bit magnitude comparison is required in HC CMOS technology. Consider the SSOP-16 package constraints for board space. Verify that the 2V to 6V supply range meets system power requirements. Evaluate thermal performance given the wide operating temperature specification.

Comparators Part Context

This integrated circuit belongs to the standard 74HC family of high-speed CMOS logic devices. It serves as a fundamental building block for digital comparison tasks. The DB suffix indicates the SSOP-16 surface-mount package type. The 118 code typically denotes specific tape-and-reel packaging configurations.

Comparators FAQ

What are the output states for the comparison results?

The device provides active high outputs indicating whether input A is less than, equal to, or greater than input B.

How can the comparison range be expanded beyond 4 bits?

Expansion is achieved using the cascading inputs (I_A<B, I_A=B, I_A>B) to connect multiple comparators in series.