General description
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.

FEATUREs and benefits
• Compare two 8-bit words
• Wide supply voltage range from 2.0 to 6.0 V
• CMOS input levels
• Complies with JEDEC standard: no. 7A
• ESD protection:
   – HBM JESD22-A114-F exceeds 2000 V
   – MM JESD22-A115-A exceeds 200 V
• Multiple package options
• Specified from -40 °C to +85 °C and from -40 °C to +125 °C