In today's world low power issues have become a major important factor in modern VLSI design. In fact, Low Power VLSI chips have emerged as highly in demand for designing any subsystem. Low power circuit is realized using both hardware and software approach. The limited power capacity of the portable system has lead designers to more power aware designs. Energy efficient circuits are required because of the increasingly stringent demands for battery space and weight in portable multimedia devices, particularly in digital multipliers which are basic building blocks of digital signal processors.