Comparative Analysis of 8-Bit ALU in 90 and 45 nm Technologies Using GDI Technique

  • T. Swapna RaniEmail author
  • Kumud Kumar BhardwajEmail author
Conference paper
Part of the Lecture Notes in Networks and Systems book series (LNNS, volume 65)


Arithmetic and Logic Unit is the fundamental building block of almost all the digital devices. ALU is the heart of the Central Processing Unit (CPU) of the computer. It is generally used to perform the arithmetic and logical operations in the device. ALU can perform arithmetic operations like addition, subtraction, multiplication, increment, decrement, shift operations, and logical operations like AND, OR, XOR, NAND, NOR, etc. Any digital device has its characteristics; based on its characteristics ALU is configured. The parameters like the speed of operation, power, accuracy, etc., are taken care during the design. This paper presents the design of 8-bit ALU which performs 16 operations in 45 and 90 nm technology and compares parameters like power and delay.


Arithmetical logical unit GDI technique Low-power VLSI 



Behind every achievement, there is unfathomable sea of gratitude to those who supported it and without whom it would ever have been a success one. We are thankful to Principal and head of department for their support and encouragement.


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© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  1. 1.ECECMR College of Engineering & TechnologyMedchalIndia

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