Alternative Implementation of an Autocorrelation Unit Using TTL-MSI and NMOS-LSI Technology

摘要

As integrated circuit technology progresses towards VLSI, the problem of designing circuits becomes increasingly difficult. In response to these difficulties, design methodologies have been proposed for NMOS LSI with the goal of simplifying the design process. In order to obtain this simplification, very conservative design rules are used. This report, via a case study, examines whether use of these conservative design rules for NMOS LSI results in serious performance degradation compared to an equivalent system implemented using SSI/MSI TTL logic. Several autocorrelator function units are designed using a variety of architectures and technologies. The resulting speed, power, and area are then compared among the designs. Based on this case study, it appears that systems designed in NMOS using a simplified design methodology can indeed be competetive with a system designed using SSI/MSI TTL. (Author)