State-of-the-art in CMOS threshold-logic VLSI gate implementations and applications

Abstract

In recent years, there has been renewed interest in Threshold Logic(TL), mainly as a result of the development of a number ofsuccessful implementations of TL gates in CMOS. This paper presentsa summary of the recent developments in TL circuit design.High-performance TL gate circuit implementations are compared, and anumber of their applications in computer arithmetic operations arereviewed. It is shown that the application of TL in computerarithmetic circuit design can yield designs with significantlyreduced transistor count and area while at the same time reducingcircuit delay and power dissipation when compared to conventional CMOS logic.