What are the characteristics of static RAM?

What are the characteristics of static RAM?

The characteristic of static RAM is that the information in it remains unchanged under the condition of continuous power supply, so it does not need to be refreshed regularly. The information in it can be read and written, but the information will be lost after a power outage.

1. Static RAM uses flip-flops as storage units to store 1s and 0s. The access speed is fast and the content can be kept unchanged as long as the power is not lost.

2. Compared with dynamic RAM, static RAM has a lower integration level, and static RAM does not need to consider the refresh circuit set up to retain data, so the expansion circuit is relatively simple.

3. Since static RAM uses active circuits to retain data in the memory, it consumes more power and is more expensive.

Extended information:

1. Non-volatile SRAM: Non-volatile SRAM (Non-volatile SRAM, nvSRAM) has the standard functions of SRAM, but Data can be retained when power is lost. Non-volatile SRAM is used in critical applications such as networking, aerospace, and medical care - retaining data is critical and it is impossible to use batteries.

2. Asynchronous SRAM: The capacity of asynchronous SRAM (Asynchronous SRAM) ranges from 4 Kb to 64 Mb. The fast access of SRAM makes asynchronous SRAM suitable for the main memory of small embedded processors with small caches. Such processors are widely used in industrial electronic equipment, measurement equipment, hard disks, network equipment, etc.

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