BUY MM74HC688N https://www.utsource.net/itm/p/1392748.html
8-Bit Magnitude Comparator (Equality Detector)
Description: The MM74HC688N is an 8-bit high-speed CMOS logic device. Features: High-speed operation: tPD = 10 ns (typ.) at VCC = 5 V Low power consumption: ICC = 4 μA (max) at TA = 25°C High noise immunity: VNIH = VNIL = 28% VCC (min) Outputs source/sink 24 mA Latch-up performance exceeds 250 mA per JESD 78, Class II ESD protection: Human body model > 2000 V; Machine model > 200 V Applications: Data acquisition systems Digital control systems Interface systems Logic systems Memory systems (For reference only)