Source : DSCH3 & Microwind

Proposed Abstract:

The Arithmetic Logic Unit (ALU) is a fundamental component in digital systems, particularly in the central processing units (CPUs) of microprocessors, where it executes essential arithmetic and logical functions. This paper presents the design and implementation of an 8-bit Arithmetic Logic Unit (ALU) using CMOS technology, developed and simulated in DSCH3 and Microwind environments. The primary goal of this research is to design an efficient and compact ALU optimized for performance and area efficiency. The 8-bit ALU performs eight operations: ripple carry addition, ripple borrow subtraction, multiplication, XOR, left shift, right shift, NAND, and NOR. Each logic gate within the ALU is constructed using CMOS logic to enhance power efficiency and integration density. This paper provides a detailed description of the ALU’s CMOS-based architecture, its key components, and the control mechanism for operation selection. Performance metrics, including speed, area efficiency, and power consumption, are analyzed to assess the ALU’s effectiveness in CMOS technology.

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