4-BIT Arithmetic Logic Unit (ALU) using Full Swing GDI Technique

Abstract

This paper presents a layout of a 4-bit mathematic logic unit (ALU) via taking vantage of the idea of gate diffusion input (GDI) technique. ALU is the maximum crucial and middle element of vital processing unit as well as of numbers of embedded machine and microprocessors. In this, ALU consists of 4x1 multiplexer, 2x1 multiplexer and occasional power complete adder designed to implements logic operations. Complete swing GDI cells are used inside the design of multiplexers and full adder that are the related to comprehend ALU. The simulation is carried out DSCH3.5 and mircowind3.five simulator the use of 65nm technologies and in comparison, with previous designs found out with pass transistor common sense and CMOS common sense.

Keywords: ALU, GDI, CMOS