- #1
therash09
- 12
- 0
I have always wondered the criteria behind choosing between SRAMs and DRAMs. I know a few of them- like SPEED, POWER, SPACE, etc. But how do we know which one has to be prioritized?
In case of Space, DRAM wins, but loses in Speed of operation. Though DRAMs are less power consuming than SRAMs, the refreshing circuitry adds to the power requirement and makes DRAM more power consuming.
However, the space saving done by DRAM comprehensivley defeats the limitations of this technology!
How do we then decide which one to use in our device? For example, calculators are designed to be compact, yet fast and consume very little power, to the extent that simple dry cells are used to power them! How can we predict the type of RAM used in a calculator based on these?
In the case of a PC, for example, RAMs are DRAMs, but cache memories are SRAMs due to the latter's higher operational speed. Does it mean that with SRAM technology, our PCs could have been faster?
And, if DRAMs have outclassed SRAMs in context of Random Access Memory designs of PCs, what is the limitation that limits their total supremacy over SRAMs? Is it just speed? Or is there some other limitation as well?
In case of Space, DRAM wins, but loses in Speed of operation. Though DRAMs are less power consuming than SRAMs, the refreshing circuitry adds to the power requirement and makes DRAM more power consuming.
However, the space saving done by DRAM comprehensivley defeats the limitations of this technology!
How do we then decide which one to use in our device? For example, calculators are designed to be compact, yet fast and consume very little power, to the extent that simple dry cells are used to power them! How can we predict the type of RAM used in a calculator based on these?
In the case of a PC, for example, RAMs are DRAMs, but cache memories are SRAMs due to the latter's higher operational speed. Does it mean that with SRAM technology, our PCs could have been faster?
And, if DRAMs have outclassed SRAMs in context of Random Access Memory designs of PCs, what is the limitation that limits their total supremacy over SRAMs? Is it just speed? Or is there some other limitation as well?
