Design and synthesis of dynamic circuits

Dynamic circuits are widely used in todayʹs high-performance microprocessors for obtaining timing goals that are not possible using static CMOS circuits. Currently, no commercial tools are able to synthesize dynamic circuits and therefore their design is either completely done by hand or aided by proprietary in-house design tools. This paper describes methodologies and tools for the design and synthesis of dynamic circuits, including general monotonic circuits, which consist of alternating low-skew and high-skew logic gates that may both contain functionality. Synthesis results show standard domino, dynamic-static domino, monotonic static CMOS, zipper CMOS, and footless domino and clock-delayed domino circuits to have average speed improvements of 1.57, 1.66, 1.67, 1.47, 1.71, and 1.60 times over static CMOS, respectively.