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
Counters - Synchronous, Asynchronous, up, down & Johnson ring counters
Asynchronous 3-bit up down counter| Electronics Engineering Study Center
How to design a 3-bit binary counter using a T flip-flop - Quora
Solved In class we presented the figures below for 3-bit up- | Chegg.com
Solved Q= Design a three-bit up/down counter using D | Chegg.com
Synchronous counter
A 4-bit synchronous counter using T flip-flops | Download Scientific Diagram
Digital Circuits - Counters
Counters - Digital Electronics
How to design a sequential circuit with 3 bit up/down counter - Quora