74HC287

The 74HC287 is a high-speed CMOS 8-bit binary comparator designed to compare two 8-bit words and generate outputs that indicate relative magnitudes and equality. It provides dependable equality and magnitude comparison outputs for digital systems that require fast, deterministic decision logic. 8-bit input capability supports simultaneous comparison of two full byte-wide binary words, simplifying multi-bit comparison tasks. High switching speed delivers rapid response times appropriate for time-sensitive digital circuits and logic functions. Wide operating voltage range (2V–6V) enables use across a variety of power-supply conditions and mixed-voltage environments. Low power consumption inherent to CMOS technology helps reduce overall system power draw in battery-powered and energy-conscious designs. Compact 16-pin package eases integration into space-limited PCBs and standard through-hole or surface-mount layouts. Compared with earlier comparator models, the 74HC287 offers improved speed and reduced power use, making it well suited for modern digital logic designs. Its CMOS implementation promotes straightforward interfacing with other logic families, enhancing compatibility and system reliability. Typical applications include equality checking, magnitude detection, cascading comparisons for wider bit widths, and use wherever fast, reliable digital word comparison is required.