Design of Low Power Adder in ALU Using Flexible Charge Recycling Dynamic Circuit

Pallavi Mamidala, K. Anil kumar


Dynamic circuits are widely used in order to solve the problems occurred in the data path and the critical components of the microprocessor. The power consumption is significantly in dynamic circuits due to their switching activity. In order to obtain high performance dynamic circuits are used in microprocessors because of their special features such as speed and area. In this paper, we proposed flexible charge recycling design methodology and dynamic circuit selection algorithm in order to achieve high efficiency in the data path. According to the proposed methodology the simulation result of the design shows the consumption of the ALU (Arithmetic and Logic Unit) with proposed technique is reduced up to 50% to 60% than the conventional ALU. The proposed technology is carried out under 22nm technology.

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