This paper process a novel design for low power 1-bit CMOS full adder using XNOR and MUX, with reduced number of transistors using GDI cell. The circuits were simulated with supply voltage scaling from 1.2V to 0.6V &0.6V to 0.3V. To achieve the desired performance of power delay product, area, capacitance the transistors with low threshold voltage were used at critical paths and high threshold
... [Show full abstract] voltage at non critical paths. The results show the efficiency of the proposed technique in terms of power consumption, delay and area.