
Static random access memory (SRAM) is a type of semiconductor memory. It uses bistable latching circuitry for storing bits. It is static in nature i.e. the data bits are stored till the power is supplied. The SRAMs are comparatively more expensive than DRAMs, thus are mostly used in the applications where high efficiency and performance is needed. Some characteristics such as bandwidth, power efficiency make SRAMs ideal for the electronic appliances such as cell phones, digital cameras and electronics user interfaces. Some of the general uses of SRAMs are workstations, computers, routers and other peripheral equipments such as CPU (central processing unit) caches, CPU register files, router buffers and hard disk buffers, among others. Printers and LCD (liquid crystal display) screens also use SRAM to save the preview of the image printed or displayed.