Design and Implementation of ALU using GDI Technique

Abstract

VLSI technology has lowered at the nanoscale as a result of developments in low power consumption and fast speed of various embedded systems, allowing numerous functionalities to be implemented on a single chip. Modern processors feature a large amount of transistors (over a billion), which causes heat generation in the system leading to drop in performance. As a result, low-power circuit design is becoming a critical requirement for integrated circuits. Previously CMOS, TG, and PTL were used to construct functions and logic circuits, however, a new technology known as infiltrators gate or GDI has overcome issues like power consumption, speed, and transistor count. The GDI methodology is a low-power design method. The paper demonstrates how to create an ALU using GDI method. The Arithmetic and Logic Unit (ALU) is a crucial component in the design of embedded systems and microprocessors. Arithmetic operations will be performed by the Arithmetic Unit. The logic unit will use the concept of GDI method to perform logical operations like OR, XOR, AND and other boolean operations.