Asynchronous Static Random‐Access Memory as a Component

The first commercial static random-access memory or SRAM was introduced by Intel in 1969 under reference 3101. The static model plays an important role in data storage thanks to its easy interfacing and very low access time. Asynchronous SRAM is the original model. It is one of the easiest memory components to use. Asynchronous static random-access memory can exist in a limited-pin version, the serial-access SRAM, and in a backup version, the non-volatile SRAM. The three main locations of static power consumption in a RAM are the storage array, the read amplifiers and the input/output buffers. The asynchronism of the historical model can only provide upper time limits, characterized by varying power supply and temperature ranges. The serial communication interface helps limit the number of data signals to what is strictly necessary for a more limited bandwidth.