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Battery-backed Memory
nvSRAM is a type of non-volatile random-access memory (NVRAM). nvSRAM extends the functionality of basic SRAM by adding non-volatile storage such as an EEPROM to the SRAM chip. In operation, data is written to and read from the SRAM portion with high-speed access; the data in SRAM can then be stored into or retrieved from the non-volatile storage at lower speeds when needed. nvSRAM is one of the advanced NVRAM technologies that are fast replacing the battery-backed static random-access memory (BBSRAM), especially for applications that need battery-free solutions and long-term retention at SRAM speeds. nvSRAMs are used in a wide range of situations: networking, aerospace, and medical, among many others where the preservation of data is critical and where batteries are impractical. nvSRAM is faster than EPROM and EEPROM solutions. Description When reading and writing data, a nvSRAM acts no differently than a standard asynchronous SRAM. The attached processor or controller sees ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Non-volatile Random-access Memory
Non-volatile random-access memory (NVRAM) is random-access memory that retains data without applied power. This is in contrast to dynamic random-access memory (DRAM) and static random-access memory (SRAM), which both maintain data only for as long as power is applied, or forms of sequential-access memory such as magnetic tape, which cannot be randomly accessed but which retains data indefinitely without electric power. Read-only memory devices can be used to store system firmware in embedded systems such as an automotive ignition system control or home appliance. They are also used to hold the initial processor instructions required to bootstrap a computer system. Read-write memory can be used to store calibration constants, passwords, or setup information, and may be integrated into a microcontroller. If the main memory of a computer system were non-volatile, it would greatly reduce the time required to start a system after a power interruption. Current existing types of semi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
