Fast Asynchronous SRAM Alliance Memory FAST Asynchronous SRAM devices are high-performance CMOS Static Random Access Memory (SRAM). These devices are designed for memory applications where fast data access, low power, and simple interfacing are desired. Alliance Memory FAST Asynchronous SRAM modules feature low power consumption. Alliance Memory supports the full range of 3.3V and 5V asynchronous SRAMs used with mainstream digital signal processors (DSPs) and microcontrollers.