Computer Organization and Architecture2021-222 markssemiconductor RAM memories, 2D & 2 1/2D memory organization
Differentiate between static RAM and Dynamic RAM.
Differentiate between static RAM and Dynamic RAM.
SRAM and DRAM are both volatile semiconductor memories, but they differ as follows.
| Point | Static RAM (SRAM) | Dynamic RAM (DRAM) |
|---|---|---|
| Storage cell | flip-flop (about 6 transistors) | capacitor and 1 transistor |
| Refresh | not needed | needed every few ms |
| Speed | faster | slower |
| Cost and density | costly, low density | cheap, high density |
| Power use | more when active | less per bit |
| Used in | cache memory | main memory |
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