In-Vehicle Information Systems and Semiconductor Devices They Employ (Special Issue on ASICs for Automotive Electronics)

概要

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It was more than 10 years ago that the first map navigation system, as an example of invehicle information system, has appeared in the market in Japan. Today's navigation system has been improved to the level that the latest system has micro-processors, 7 MBytes of memories, and 4 GBytes of external data storage for map database. From the viewpoint of the automobile driver, there are still some problems with the system. Major problems in general are a lack of traffic information, better human interface, and a need for cost-reduction. The introduction of application specific ICs (ASICs) is expected to make systems smaller, costless, and give higher speed response. Today's in-vehicle information systems are reviewed function by function to discover what functions need to be implemented into ASICs for future systems, what ASICs will be required, and what technology has to be developed. It is concluded that more integration technology is expected including high performance CPUs, large capacity memories, interface circuits, and some analog circuits such as DA converter. To develop this technology, some major problems such as power consumption, number of input / output signals, as well as design aid and process technology are pointed out.
一般社団法人電子情報通信学会の論文
1993-12-25