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
How to design a synchronous counter using D-type flip-flops for getting the following sequence, 0-2-4-6-0 - Quora
How to design a synchronous counter using D-type flip-flops for getting the following sequence, 0-3-6-9-12-15-0 - Quora
How to design an asynchronous counter using JK flip for getting the following sequence 0-2-4-7-9-0 - Quora
![digital logic - In a JK Binary Counter from 0 to 9, why is the NAND gate connected to the second and fourth J-K flip flop and not the first and fourth? - digital logic - In a JK Binary Counter from 0 to 9, why is the NAND gate connected to the second and fourth J-K flip flop and not the first and fourth? -](https://i.stack.imgur.com/UCOWS.gif)
digital logic - In a JK Binary Counter from 0 to 9, why is the NAND gate connected to the second and fourth J-K flip flop and not the first and fourth? -
![digital logic - How can i make my mod 10 up/down counter wrap from 0 to 9 when counting down? - Electrical Engineering Stack Exchange digital logic - How can i make my mod 10 up/down counter wrap from 0 to 9 when counting down? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/q9DSq.png)