On area-efficient low power array multipliers

Multiplication is one of the most critical operations in many computational systems. In this paper, we present an improved architecture for a multiplexer-based multiplication algorithm. Also through intensive HSPICE simulation, it has been shown in this paper that due to smaller internal capacitance, the multiplexer-based array multiplier outperforms the modified Booth multiplier in both speed and power dissipation by 13% to 26%. In addition, we demonstrate that using area-efficient full adder circuits (SERF and 10T) can help reduce the overall routing capacitance, resulting in less power consumption for multipliers built upon those adder circuits. Therefore, a multiplexer-based multiplier following the suggested architecture, along with area-efficient full adder circuits, can be used for low power high performance parallel multiplier designs.