Avoiding Races: Latch Clocking Rules
CLK
D
Q
1
3
2
4
5
6
7
Need t25 > 0 to
avoid race
condition
Timing rules for latch dictate:
t25 ³ th
8
9
t15 - t12 ³ th
t12 £ t13 + t35 - th
t12 £ tcd C-Q + tcd C.L. - th
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