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(Solved): (b) (7 pts) DRAM data needs to be refreshed regularly because there is leakage current from the stor ...
(b) (7 pts) DRAM data needs to be refreshed regularly because there is leakage current from
the storage node. Assume the only leakage current path from the DRAM storage node is
represented by R_(leakage )(=10^(13)\Omega ) as shown in the figure below. If the cell storage capacitance
(Ccell) is 10f(F)=10^(-14)(F) and the cell initial voltage is Vdd, how long will it take for the
cell storage voltage value to become Vd(d)/(2) even if the access transistor is turned off?