Design of High Performance 16-Bit ALU Using F...

Design of High Performance 16-Bit ALU Using FS-GDI Technique

Author Name : Tasmiya Sindageri, Dr. H. V. Manjunath

DOI: https://doi.org/10.56025/IJARESM.2022.1071959

ABSTRACT

The ALU is often mistaken for the CPU in systems like microprocessors and digital signal processors (DSP). As the number of operations increases, ALU becomes slower and less effective. Reduced power consumption, latency, and transistor count are the primary objectives of VLSI circuitry. This research applies a power-saving technique called Full Swing Gate Diffusion Input to build a 16-bit ALU. There are fewer transistors in a circuit thanks to the power-saving Full Swing Gate Diffusion Input method (FS-GDI). The project's concept and implementation are carried out using 45nm technology and a 1V supply voltage in cadence virtuoso. This article demonstrates the delay time optimization of a 16-bit ALU built using the full-swing gate diffusion input (GDI) technique. The optimised ALU design was shown by the simulation results to have a lower delay time and total power consumption. A 16 bit ALU based on GDI and CMOS technology is compared to a 16 bit FS GDI-ALU in terms of power, delay, and transistor count.

Keywords: Arithmetic Logic Unit, Full Swing Gate Diffusion Input Technique, Gate Diffusion Input.