Needs and applications of high temperature LSIs for automotive electronic systems

Toyota has developed a lot of LSIs for an automotive application. High performance LSIs used in automotive electronic systems are key components to achieve the high output power, the low fuel consumption and the clean exhaust gas. The design of the next generation automobile requires for high performance automotive electronic systems. In this paper we describe needs and applications of high temperature LSIs for automotive electronic systems. Especially we focus on the newly developed SOI BiCMOS LSI and the intelligent power device. We also describe an example of the high integration LSI, which has 8-bit microprocessor, program/data memories, a 10-bit precision A/D converter, analog circuits for sensor signal processing and a knock control system, serial communication interfaces, and general I/O ports. This LSI has designed for 4/6-cylinder engine control under automotive high operation temperature condition.