Gated D Flip-Flop
- The D (data) flip-flop has a single input that is used to set and to reset the flip-flop.
- When the gate is high, the Q output will follow the D input.
- When the gate is low, the flip-flop is latched.
A simple rule for the D latch is:
Q follows D when Enabled.
Notice that the Enable is not active during the grey areas, so the output is latched.
