This electronic part is designed with 8 Bits.The Identity Comparator Type qualifies for standard grade applications.A total of 20 pins are equipped with it.
HD74HC688FP(E) Features
8 Bits 20 pin count
HD74HC688FP(E) Applications
There are a lot of Renesas Electronics HD74HC688FP(E) applications of comparators.
Communications digltal frequency synthesizers: VHF, UHF, FM, AM, etc.
Fixed or programmable irequency division
“Time out" timer for consume-appication industrial controls
Companion Appliceation Nole, ICAN-6374, "Application of the CMOS CD4059A Programmable Divide-by-N Counter in FM and Ctizens Band Transceiver Digital Tuners"