CD74HC85M

Comparators Overview

The CD74HC85M is a 4-bit magnitude comparator from the Texas Instruments HC logic family. It operates on a supply voltage range of 2V to 6V and features high-level and low-level output currents of -5.2mA and 5.2mA respectively. The device exhibits a maximum propagation delay of 33ns at 6V with a 50pF load. It functions within an operating temperature range of -55°C to 125°C and is housed in a 16-pin SOIC package.

Comparators Feature Summary

• Provides three distinct outputs indicating A less than B, A equal to B, and A greater than B relationships.
• Supports cascading functionality for expanding comparison capabilities beyond four bits.

Comparators Applications

• Digital data processing systems requiring magnitude comparison
• Arithmetic logic units (ALUs)
• Control circuits for digital sorting operations

Comparators Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for specific tape-and-reel or tube packaging requirements based on assembly needs. Ensure the supplier provides valid traceability documentation for quality assurance purposes.

Comparators Selection Notes

Select this component when a 4-bit magnitude comparison function is required within the HC logic family constraints. Consider the 16-SOIC package dimensions for PCB layout compatibility. Evaluate the -55°C to 125°C temperature range against environmental conditions. Verify power supply stability within the 2V to 6V operational window.

Comparators Part Context

This part belongs to the Texas Instruments 74HC series of high-speed CMOS logic devices. It serves as a fundamental building block for digital arithmetic and control applications. The CD74HC85M specifically implements magnitude comparison logic using standard CMOS technology compatible with various digital system interfaces.

Comparators Replacement Considerations

CD74HC85D,653 by Nexperia USA Inc. is listed as an available alternative. Verify pinout compatibility and electrical specifications before substitution.