Asynchronous logic Vs Synchronouos logic: Concrete results on electromagnetic emissions and conducted susceptibility

Ghislain Fraidy Bouesse (1) , N. Ninon (1) , G. Sicard (1) , Marc Renaudin (1) , Alexandre Boyer (2) , E. Sicard (2)

1 TIMA - Techniques de l'Informatique et de la Microélectronique pour l'Architecture des systèmes intégrés
2 INSA Toulouse - Institut National des Sciences Appliquées - Toulouse

This paper presents the first concrete evaluation of the Quasi Delay Insensitive (QDI) asynchronous logic in terms of Electromagnetic Compatibility (EMC). In fact, the QDI logic is evaluated by analyzing the electromagnetic emissions and the conducted susceptibility of a Data Encryption Standard (DES) crypto processor using a GTEM cell. A synchronous DES crypto processor is used as a reference. The results obtained, demonstrate the potentiality of the QDI logic in EMC domain. The electromagnetic emissions of the asynchronous version is 4 times lower than the synchronous version and the power signal required to disturb the circuits has to be 10 times higher for the asynchronous circuit than for the synchronous circuit.

Mots clés: quasi-delay insensitive; asynchronous

Domaines: Micro et nanotechnologies/Microélectronique

Ghislain Fraidy Bouesse, N. Ninon, G. Sicard, Marc Renaudin, Alexandre Boyer, et al.. Asynchronous logic Vs Synchronouos logic: Concrete results on electromagnetic emissions and conducted susceptibility. 6th International workshop on electromagnetic compatibility of integrated circuits (EMC Compo'07), Nov 2007, Torino, Italy. pp.99-102. ⟨hal-00222916⟩