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
![4-bit binary counter using J-K flip flops V. SIMULATION OF THE CIRCUIT... | Download Scientific Diagram 4-bit binary counter using J-K flip flops V. SIMULATION OF THE CIRCUIT... | Download Scientific Diagram](https://www.researchgate.net/publication/269709920/figure/fig2/AS:564844852989953@1511680915903/bit-binary-counter-using-J-K-flip-flops-V-SIMULATION-OF-THE-CIRCUIT-THROUGH-MULTISIM.png)
4-bit binary counter using J-K flip flops V. SIMULATION OF THE CIRCUIT... | Download Scientific Diagram
![digital logic - Why does a 4-bit asynchronous counter need exactly 4 flip- flops? - Electrical Engineering Stack Exchange digital logic - Why does a 4-bit asynchronous counter need exactly 4 flip- flops? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/BVibL.jpg)