The T Flip Flop is known as the toggle or trigger Flip Flop. It has an input T and two outputs Q and Q̅. It is made from the JK Flip Flop by connecting the J and K inputs together to T input.
A T Flip Flop has two conditions.
1. When T =0, then Qn = Qn + 1. Next state is equal to previous state.
2. When T =1, then Qn + 1 = Q̅n. In this condition the next state is complemented.
T Flip Flop is used in counters and sequential circuits.
