A Review on Online Testability for Reversible Logic

Reversible logic is the key to enter into the new era of incredibly compact electronic devices with ultra low power consumption. Testing of these devices is another significant issue. As a new technology, new fault models are finding their confinements where testing ensures the true functioning of these devices. Several online testing strategies were proposed to spot these fault models, which are scaled on various performance parameters. This paper reveals a comparative review on online testability of reversible. Collective information of fault models, performance parameters and online testing strategies from the literature is presented. The aim is to bridge the knowledge gap for new researchers in this area rather than searching entire space. The detailed explanation of these strategies is provided by classifying them into two broad categories based on their designing principles. A comparison of experimental results on available number of benchmarks and some combinational logic circuits is presented in tabular form for better understanding.