The following cycle is given and i need to determine what is the max frequency possible for it.

The cycle has 3 positive D-edge Flip Flops and some logic gates. i calculated the time it takes for the path of each Flip Flip. and what I got is that the minimal cycle time is 19 nano seconds. Meaning the max frequency is around 52.6 megahertz.

However, in my calculations I haven't done anything with hold time or the minimum propagation time. So I am not sure I am correct here.

I'll be glad if someone could reassure me that I am right here.

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