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Design of dynamic pass-transistor logic circuits using 123 decision diagrams

Pass transistor logic (PTL) has advantages over standard CMOS designs in terms of layout density, circuit delay, and power consumption and is well suited for pipelined circuits. In this paper we develop a decision-diagram-based model, the 123-decision diagram, which can he used to efficiently synthesize PTL circuits, and we investigate multilevel logic synthesis techniques for complex, pipelined PTL networks using this model. Experiments on a large number of benchmark circuits show that PTL networks synthesized using our techniques are significantly more economic in terms of silicon area compared to those using existing techniques.