An interface IC is an integrated circuit that is designed to interconnect two or more systems in a modern electronic design. It provides a connection point between discrete and analog signals, usually between input and output devices. Interface ICs are used to connect different kinds of digital and analog systems, ranging from communication and industrial control systems to consumer electronics and automotive systems. Common examples include USB controllers, bus line drivers, and HDMI transmitters. By including multiple connections in a single chip, interface ICs not only save space and reduce cost but can also eliminate noise and other potential problems that would result from using separate components.