Difference between Static RAM and Dynamic RAM:

The difference between Static RAM and Dynamic RAM is given in table below

Sl no Static RAM Dynamic RAM
1 Static RAM contains less memory cells per unit area. Dynamic RAM contains more memory cells as compared to static RAM per unit area.
2 It less access time hence faster memories. Its access time is greater than static RAMs.
3 Static RAM consists of number of Flip-flops. Each flip-flop stores one bit. Dynamic RAM stores the data as a charge on the capacitor. It consists of MOSFET and the capacitor for each cell.
4 Refreshing circuitry is not required. Refreshing circuitry is required to maintain the charge on the capacitors after every few milliseconds. Extra hardware is required to control refreshing. This makes system design complicated.
5 Cost is more. Cost is less.

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