Nonvolatile SRAM - The Next Generation

The successful introduction of the first fast high density nonvolatile static RAM (nvSRAM) into both commercial and military arenas is now being followed by the development of the next generation: 256K nvSRAMs. At the time of Simtek’s initial commercialization of 64K nvSRAMs, other single chip nonvolatile RAMS had a maximum density of 4K and were over four times slower. This paper quickly reviews the current product offering which changed the market for nonvolatile RAMS. It then describes the similarities between the 64K and 256K product families and highlights their differences.