6. Minimizing Delay
6. Minimizing Delay
6. Minimizing Delay
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Optimum Stage effort with freedom to choose number of stagesLogic Block:n 1StagesPath Effort FN - n 1Extra InvertersD N = NF1 n N∑11p i N −n 1 p inv1 1dDdN =F N NFN ln F ∗ −1N p 2 inv1let f =FN =stage effortdDdN = f ∗1−ln f p invfor minima , dD =0: hence ,dNf opt∗1−ln f opt p inv=0f opt=e if p inv=0f opt=3.5 assuming p inv=1N opt=log f F= ln F ln f
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