Flip-Flop Clocking Rules
CLK
D
Q
1
3
2
4
5
6
7
Clock period = t17
t17 = (t14 + t46 + t67) ³ tpd C-Q + tpd C. L. + ts
Hold time constraint:
t15 = (t13 + t35) ³ th
tcd C-Q + tcd C.L. ³ th
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