CD74HC85PW

Comparators Overview

The CD74HC85PW 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 features active-high outputs for A < B, A = B, and A > B comparisons. The device utilizes a TSSOP-16 surface-mount package and supports propagation delays ranging from 20 ns to 33 ns depending on load conditions. It functions reliably across an extended temperature range from -55 °C to +125 °C with a maximum supply current of 8 µA.

Comparators Feature Summary

• Performs parallel magnitude comparison between two 4-bit binary words
• Provides cascading capability via dedicated input pins for expanding bit width
• Delivers active-high logic outputs indicating inequality or equality states

Comparators Applications

• Digital arithmetic logic units requiring magnitude evaluation
• Address decoding systems in microprocessor interfaces
• Control logic circuits for automated sorting mechanisms

Comparators Procurement Notes

Verify the specific suffix against official Texas Instruments documentation to confirm package type and manufacturing status. The PW variant denotes a TSSOP-16 package. Confirm RoHS compliance details directly from the manufacturer's datasheet before integration into production designs.

Comparators Selection Notes

Select this component when a 4-bit magnitude comparison function is required in a surface-mount design. Ensure the operating voltage aligns with the 2 V to 6 V specification. Consider the propagation delay characteristics relative to system clock speeds and verify thermal requirements for the intended operating environment.

Comparators Part Context

This part belongs to the Texas Instruments HC logic family, designed for general-purpose digital applications. It serves as a standard solution for comparing binary values in embedded systems. The device integrates multiple comparators into a single IC to reduce board space and simplify circuit topology.

Comparators Replacement Considerations

The CD74HC85PWR is listed as a direct substitute available from Texas Instruments. Verify pin compatibility and electrical specifications before swapping components in existing designs.