Review on Low Power Alu Design Using Various Techniques

Abstract

VLSI technology has advanced significantly, and there arenumerous effective methods for creating VLSI circuits. PTL, GDI(Gate Diffusion Input) methods, and CMOS are a few of the styles.The weaknesses of CMOS and PTL approaches can be eliminatedby using the GDI technique to create low-power digitalcombinatorial circuits. This method maintains a low level of logicdesign complexity while lowering the amount of power consumed,propagation latency, and size of digital circuits. This paper discussesthe benefits and limitations of GDI compared to CMOS design bycomparing the various approaches with respect to layout area,transistor count, latency, and power dissipation.