Electronic – Constructing a D type flip-flop from JK type flip-flops


How can I construct a D type flip-flop from JK type flip-flops?

Best Answer

As per wikipedia, all you need to do is connect K to the inverse of J.

Doing this effectively removes the possibility of 00 and 11 inputs. If the J is treated as D then:

  • D = 1 sets Q
  • D = 0 resets Q

This behaviour is then identical to the D flip-flop.

For this reason the JK flip-flop is called the universal flip-flop, because you can construct all other flip-flop types with it.