The reference book provides the symbols and electrical parameters of widely distributed foreign analog and digital chips. The handbook is designed for engineers and technicians, as well as for a wide range of readers engaged in the operation and repair of foreign electronic equipment. The main element base of modern radio-electronic equipment (REA) are integrated circuits (IMS) The properties, parameters, characteristics and features of IMS determine the technical, operational and economic characteristics of REA. The effect of the application of IMS in REA is not only that its weight, dimensions and cost are reduced, but also that the process of its design is simplified, the installation and assembly technology is cheaper.