How to make counter 74LS191 stop at multiples of 5 (eg. 1111, 1010, 0101) and 0000?
I am building a circuit that requires the counter to stop when i press the push button and stop at multiples of 5 and 0000. I have managed to stop the counter using a D-flip flop but i cant make the counter stop at multiples of 5. So, how do i make the counter stop at multiples of 5?
So far i have managed to identify that for 1111, 1010, 0101 and 0000, the first and third bit are the same, and the second and forth bit are the same (which the other numbers do not have)