Comparison between static RAM and dynamic RAM

Static RAM uses a bistability trigger to remember information. Dynamic RAM uses the gate capacitor in the mos circuit to remember information. Because the charge on the capacitor will leak and needs to be supplemented regularly, dynamic RAM needs to set a refresh circuit. However, compared with static RAM, dynamic RAM features high integration, low power consumption, and low cost. It is suitable for large-capacity storage. Therefore, the primary memory usually uses dynamic RAM, while the high-speed buffer memory (cache) uses static RAM. In addition, the memory is also used in graphics cards, sound cards, CMOS and other devices to act as the device cache or save fixed programs and data.

Comparison between static RAM and dynamic RAM