Simulation of MOS Circuits by Decision Diagrams

Abstract

This paper describes a novel approach to switch-level simulation of MOS circuits. The circuit is first partitioned into connector-switch networks CSN [4]. Then each CSN is represented in terms of a decision diagram DD, which is particularly suitable for use in simulators. The advantages of DD's are that they are based on a solid theory and they permit fast evaluation of the network's response to any input vector. The CSN's are coupled through a 3-state automaton representing charge wells associated with transistor gates.