K573RF2 Programmable read-only memory (ROM). The K573RF2 chips are a 16 kb (2k x 8) read-only memory with ultraviolet erasure and electrical recording of information. They contain 32052 integral elements. Supply voltage: 5 ± 10% V. Current consumption: not more than 110 mA. Operating temperature: -60 ... + 85 ° С.