Recap: Flip-Flop Timing Rules

Q

D

I

CLK

C

L

O

CLK

D

Q

1

3

2

4

5

6

t13 ³ tcd C-Q

t35 ³ tcd C.L.

t14 £ tpd C-Q

t46 £ tpd C.L

7

Timing rules for flip-flop dictate:

t67 ³ ts

t15 ³ th

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