07-10-2014, 01:58 PM
Design of 4-bit ALU
[attachment=68863]
Abstract
Aim of the project is to design a 4-bit ALU to perform seven arithmetic operations and four logic operations.
The circuit is designed so as to meet the following specifications:
Frequency: 200MHz
Power : 23W/cm2
Area : 400x400µm2
The results are verified with AMI06 technology, Spectre spice simulation tools.
Introduction
ALU is a fundamental unit of several combinational circuits. Learning ALU design aids in designing complex circuits.
All the arithmetic operations are performed by the Carry look ahead adder using a B-input logic.The B-input logic is based on the equation Y=BiS0+Bi’S1
The logic operations are performed using basic gates.
Two select lines are used to perform the operations on two 4 bit inputs in both the units.
The third select line is used to select either one of the units.
Conclusion
Designed and tested a 4 bit ALU that performs seven arithmetic and four logic operations at :
200 Mhz clock
Power: 11.6W/cm2
Area: 333x412 μm2
The project meets all the given specifications
This design concept can be a building block for higher bit ALU ex. 16-bit, 32-bit…
[attachment=68863]
Abstract
Aim of the project is to design a 4-bit ALU to perform seven arithmetic operations and four logic operations.
The circuit is designed so as to meet the following specifications:
Frequency: 200MHz
Power : 23W/cm2
Area : 400x400µm2
The results are verified with AMI06 technology, Spectre spice simulation tools.
Introduction
ALU is a fundamental unit of several combinational circuits. Learning ALU design aids in designing complex circuits.
All the arithmetic operations are performed by the Carry look ahead adder using a B-input logic.The B-input logic is based on the equation Y=BiS0+Bi’S1
The logic operations are performed using basic gates.
Two select lines are used to perform the operations on two 4 bit inputs in both the units.
The third select line is used to select either one of the units.
Conclusion
Designed and tested a 4 bit ALU that performs seven arithmetic and four logic operations at :
200 Mhz clock
Power: 11.6W/cm2
Area: 333x412 μm2
The project meets all the given specifications
This design concept can be a building block for higher bit ALU ex. 16-bit, 32-bit…