Take a minute to browse Circuit Specialists' selection of affordable complementary metal-oxide-semiconductor (CMOS), which is used in microprocessors, microcontrollers, static RAM, and other digital logic circuits, has high noise immunity and low static power consumption and less waste heat than other forms of logic. We also carry quality transistor-transistor logic which is a class of digital circuits composed of bipolar junction transistors (BJT) and resistors that formed the foundation of computers and other digital electronics.