CD74HC85EE4

Comparators Overview

The CD74HC85EE4 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 2V to 6V and supports an operating temperature range from -55°C to +125°C. The component utilizes a 16-pin PDIP package with through-hole mounting. Key electrical characteristics include a maximum propagation delay of 33ns at specified load conditions, a maximum low-level output current of 5.2mA, and a maximum high-level output current of -5.2mA.

Comparators Feature Summary

• Performs 4-bit magnitude comparison between two binary numbers
• Provides active-high outputs for less than, equal to, and greater than conditions
• Supports cascading via dedicated input pins for multi-bit expansion

Comparators Applications

• Digital arithmetic logic units requiring magnitude evaluation
• Address decoding systems in microprocessor interfaces
• Control logic circuits for conditional branching operations

Comparators Procurement Notes

Verify the EE4 suffix indicates environmental compliance and specific manufacturing lot codes. Confirm the PDIP-16 package dimensions match the target PCB footprint. Ensure the supplier provides traceability documentation consistent with Texas Instruments standards for industrial-grade components.

Comparators Selection Notes

Select this part when a 4-bit comparison function is required in through-hole designs. The HC series offers balanced speed and power consumption suitable for general-purpose digital logic. Verify that the 2V to 6V supply range aligns with the system's voltage rails and that the 5.2mA drive capability meets the load requirements.

Comparators Part Context

This component belongs to the Texas Instruments CD74HC85 family of high-speed CMOS logic comparators. The EE4 designation typically denotes lead-free packaging and environmental compliance. It serves as a fundamental building block for digital systems needing direct binary value comparison without external programming or complex configuration.

Comparators Replacement Considerations

CD74HC85E: Standard commercial grade variant in PDIP-16 package. CD74HC85PWR: Tape-and-reel version in TSSOP-16 package; requires surface mount adaptation.