D Flip-Flop with cadence

[Saadeddine Ben Jemaa]

Hallo everybody,

I am building a D flip-flop with 2 transmission gates and 2 feedback inverters.
My problem is that I only get the first data in the ouput Q and after that whatever the D is , the Q output is blocked at the first value of the input D.

it will be very nice to be helped.
Thanks for your time.

 

[crutschow]

Without a schematic it's pretty much a WAG from us.