K537RU3A Static RAM based on CMOS structures. The K537RU3A chips are a static tactical random access memory with a capacity of 4 kbits (4096 x 1). Contain 25194 integral elements. Power supply: 5.0 V ± 10%. Current consumption: not more than 0.1 mA. Operating temperature: -60 ... + 85 ° С.