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How can we calculate the length of the refresh cycle?(a) twice of normal access(b) thrice of normal access(c) five times of normal access(d) six times of normal accessThe question was asked during an online interview.This interesting question is from DRAM Refreshing Techniques topic in chapter Memory Systems of Embedded Systems

Answer»

Correct answer is (a) twice of NORMAL access

For EXPLANATION: Each of the refresh cycles is approximately as twice as the length of the normal access, for example, a 70ns DRAM has a refresh CYCLE TIME of 130ns.



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