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CD74ACT86M

CD74ACT86M Description

The CD74ACT86M is a high-performance quad 2-input XOR (Exclusive OR) gate from Harris Corporation's 74ACT series, designed for surface-mount applications. This obsolete but historically significant IC operates within a 4.5V to 5.5V supply range, making it ideal for 5V TTL-compatible systems. It features four independent XOR gates, each with two inputs, delivering robust performance with a maximum propagation delay of 14.6ns at 5V with a 50pF load. The device is characterized by low power consumption (4 µA quiescent current) and balanced output drive (24mA sink/source current), ensuring reliable signal integrity in high-speed logic applications.

CD74ACT86M Features

• Logic Type: Quad 2-input XOR gate (Exclusive OR) for versatile logic operations.
• High-Speed Performance: 14.6ns max propagation delay at 5V, 50pF, suitable for timing-critical designs.
• Wide Voltage Range: Operates from 4.5V to 5.5V, compatible with TTL levels (2V high, 0.8V low thresholds).
• Strong Output Drive: 24mA output current (high and low) for driving heavy loads.
• Low Power Consumption: 4 µA max quiescent current, reducing static power dissipation.
• Surface-Mount Package: 14-SOIC for compact PCB integration.
• Robust Design: Manufactured by Harris Corporation, ensuring high reliability for industrial applications.

CD74ACT86M Applications

• Digital Signal Processing: Used in parity generators/checkers, error detection circuits, and arithmetic logic units (ALUs).
• Data Encryption: XOR gates are fundamental in cryptographic algorithms and secure communication systems.
• Clock Synchronization: Employed in phase comparators and frequency-doubling circuits.
• Industrial Control Systems: Ideal for logic-level translation and signal conditioning in 5V-based automation systems.
• Legacy System Maintenance: Suitable for repairing or upgrading older TTL-based equipment due to its compatibility.

Conclusion of CD74ACT86M

The CD74ACT86M remains a high-performance XOR gate solution for 5V logic systems, offering speed, power efficiency, and drive strength in a compact SOIC package. While now obsolete, its TTL compatibility, robust output drive, and low propagation delay make it a preferred choice for legacy designs, industrial controls, and high-speed digital applications. Engineers seeking reliable XOR functionality in surface-mount form factors may still find value in this Harris-manufactured IC for specialized use cases.