Design of 4:1 Multiplexer using Gate Diffusion Input Technique and Comparison of Delay and Power Performance with CMOS Logic

Abstract

The aim of this research is to develop a 4:1 mul-tiplexer using the advanced GDI logic. As compared to CMOS transistor logic, GDI technique reduces the power consumption and propagation delay. Materials and Methods: There are two groups namely CMOS logic and GDI. A total of 20 samples are used to compare the propagation delay and power in which CMOS of group size 10 and GDI of group size 10. The samples are calculated with a pretest power of 80%, a confidence interval of 95% and alpha value of 0.05. Result: The propagation delay of the GDI approach is 0.4550 ns, power dissipation of 1.5070 μW, while CMOS transistor logic has more propagation delay and power consumption. It has a propagation delay of 0.8350 ns and a power dissipation of 3.5000 μW with significance of 0.02. Conclusion: The new GDI approach delivers reduced propagation delay and power consumption than CMOS transistor logic.