Differentiate between DRAM and SRAM.

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written 5.8 years ago by

SRAM	DRAM
No refreshing required in SRAM.	Continuous refreshing required in DRAM.
Faster for accessing data.	Slower in accessing data.
SRAM is made up of flip-flops.	DRAM is made up of capacitors.
Since it uses flip-flops, it requires more space on chip. (FF requires more components).	Since it uses capacitor, it requires less number of components to make a one bit cell. Hence requires less space.
It is costly.	It is cheaper.
The bit is stored in a flip flop.	The bit is stored as a charged or discharged capacitor.
Decreases bit density.	Increases bit density.
A typical SRAM cell.	A typical DRAM cell.

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