Design and Implementation of Seven Segment Display Using Reversible Logic Gates

Abstract

Abstract: An important issue in Seven segment display is heat, but the reversible logic gives less amount of heat dissipation. So, it’s an important role in nanotechnology, less energy complementary metal oxide semiconductor CMOS designs etc. Seven segment displays are most effective devices used in electronic meters, digital calculators, clock radios, digital clocks, odometers, displays in home appliances, etc.In this project, an efficient seven segment display is designed using reversible logic gates CNOT, FREDKIN and PERES gates. Retrievability is a feature which every electronic device wants to posses , In reversible logic gates the inputs and outputs can be retrievable from each other. Backward operation is used in this circuit which allows to retrieve the inputs from the outputs therefore consuming zero power. Reversible logic circuits are also known as lossless circuits, which has neither information loss nor energy loss. The reversible logic operations dissipate less heat and can't erase information.