Memory and Storage - Technical MCQs

Q1:

Which is/are the basic refresh mode(s) for dynamic RAM?

A Burst refresh

B Distributed refresh

C Open refresh

D Burst refresh and distributed refresh

ANS:D - Burst refresh and distributed refresh

Burst refresh - a series of refresh cycles are performed one after another until all the rows have been refreshed, after which normal memory accesses occur until the next refresh is required.

Distributed refresh - refresh cycles are performed at regular intervals, interspersed with memory accesses.