Is it possible to design a 3 bit down counter using JK flipflop? - Quora
How to design a synchronous counter 4 bit using JK flip flop that can count up even numbers from 0 to 14, and count down odd numbers from 15 to 0 in 1 system - Quora
using J-K flip-flops, design a synchronous counter to produce the following repeating sequence 0,6,2,4,0 and prove it in Multisim. - HomeworkLib