CD74HC85PWE4

Comparators Overview

The CD74HC85PWE4 is a high-speed CMOS logic device manufactured by Texas Instruments, functioning as a 4-bit magnitude comparator. It operates within a supply voltage range of 2 V to 6 V and supports active-high outputs for A < B, A = B, and A > B comparisons. The component utilizes a 16-pin TSSOP surface-mount package and features propagation delays ranging from 20 ns to 33 ns depending on load conditions. It is rated for operation across an extended temperature range from -55 °C to +125 °C with a maximum supply current of 8 µA.

Comparators Feature Summary

• Performs parallel comparison of two 4-bit binary numbers to determine relative magnitude relationships
• Supports cascading functionality via dedicated input pins for lower-order bit comparisons
• Provides non-inverting, active-high output signals corresponding to less than, equal, or greater than conditions

Comparators Applications

• Digital arithmetic logic units requiring magnitude determination
• Address decoding circuits in microprocessor systems
• Control logic for sorting algorithms in embedded applications

Comparators Procurement Notes

Verify the specific suffix 'E4' indicates environmental compliance status as defined by Texas Instruments. Confirm the 16-TSSOP package dimensions match the design footprint requirements. Ensure the operating voltage and temperature ranges align with the target system specifications before finalizing procurement.

Comparators Selection Notes

Select this component when a 4-bit magnitude comparison function is required in a surface-mount design. The HC series offers compatibility with standard CMOS logic levels. Consider the propagation delay characteristics and power consumption limits relative to the system's timing constraints and thermal environment.

Comparators Part Context

This part belongs to the Texas Instruments 74HC family of high-speed CMOS logic devices. The CD74HC85 specifically addresses the need for binary magnitude comparison within digital logic circuits. It serves as a fundamental building block for arithmetic operations and decision-making logic in complex integrated systems.

Comparators Replacement Considerations

The CD74HC85PWR is a comparable variant from Texas Instruments offering similar electrical characteristics in a compatible package configuration.