CD74HC85M96

Overview

The CD74HC85M96 is a high-speed CMOS 4-bit magnitude comparator manufactured by Texas Instruments. It operates within a supply voltage range of 2 V to 6 V and supports an operating temperature range from -55 °C to +125 °C. The device features a 16-pin SOIC package with a width of 9.9 mm. It provides three active-high outputs for greater than, equal to, and less than comparisons. The component is designed for cascading applications to facilitate multi-bit comparison tasks in digital logic circuits.

Feature Summary

• Provides three distinct active-high outputs indicating magnitude relationships between two 4-bit binary words
• Supports cascading functionality to enable expansion for comparing data widths exceeding four bits
• Operates reliably across an extended industrial temperature range suitable for harsh environments

Applications

• Digital data comparison systems requiring magnitude determination
• Cascaded multi-bit arithmetic logic units
• Industrial control logic interfacing

Procurement Notes

Verify the specific suffix M96 corresponds to the tape-and-reel packaging configuration required for automated assembly processes. Confirm that the RoHS compliance status aligns with current environmental regulations for the target market. Ensure the lead time and availability match project schedules, as these are subject to manufacturer allocation. Cross-reference the datasheet revision date to ensure compatibility with existing design specifications.

Selection Notes

Select this component when a 4-bit magnitude comparison function is required within HC logic families. Consider the 16-pin SOIC package constraints for PCB layout density. Evaluate the 2 V to 6 V supply voltage range against system power rails. Assess the need for cascading inputs if the application involves bit widths larger than four bits. Verify thermal performance requirements against the specified -55 °C to +125 °C operating range.

Part Context

This part belongs to the Texas Instruments CD74HC series of high-speed CMOS logic devices. The series is characterized by low power consumption and compatibility with standard CMOS logic levels. The CD74HC85 specifically addresses magnitude comparison needs, serving as a fundamental building block for arithmetic operations and decision-making logic in digital systems.

Replacement Considerations

Check for direct pin-compatible alternatives within the same HC family or other manufacturers offering equivalent 4-bit comparator specifications. Verify that any substitute maintains the same 16-pin SOIC footprint and electrical characteristics, including voltage ranges and output drive capabilities.