Nexperia 74HC688D,653

The 74HC688 is an 8-bit magnitude comparator. It performs comparisons of two 8-bit binary or BCD words. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.

• Compare two 8-bit words
• Wide supply voltage range from 2.0 to 6.0 V
• CMOS input levels
• CMOS low power dissipation
• High noise immunity
• Latch-up performance exceeds 100 mA per JESD 78 Class II Level B
• Complies with JEDEC standards JESD8C (2.7 V to 3.6 V) JESD7A (2.0V to 6.0 V)
• ESD protection: HBM JESD22-A114-F exceeds 2000 V MM JESD22-A115-A exceeds 200 V
• Specified from -40 ℃ to +85 ℃ and from -40 ℃ to +125 ℃

• Two or more 74HC688 8-bit magnitude comparators may be cascaded to compare binary or BCD numbers of more than 8 bits.