The electronic part in this photo is designed using 8 Bits.Comparator is suComparatorable for standard grade applications.Count of 20 pins is provided.
TC74HCT688AP(F) Features
8 Bits 20 pin count
TC74HCT688AP(F) Applications
There are a lot of Toshiba TC74HCT688AP(F) 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"