International Journal of Computer Applications |
Foundation of Computer Science (FCS), NY, USA |
Volume 174 - Number 27 |
Year of Publication: 2021 |
Authors: Milton Ernesto Romero Romero, Diogo Anache De Souza, Evandro Mazina Martins |
10.5120/ijca2021921199 |
Milton Ernesto Romero Romero, Diogo Anache De Souza, Evandro Mazina Martins . Universal Set of Reversible Quaternary Logic Gates. International Journal of Computer Applications. 174, 27 ( Mar 2021), 29-36. DOI=10.5120/ijca2021921199
Reversible computing is of great interest due to the fact that the next generation of high performance computers must decrease heat dissipation in order to be practical, and irreversible gates dissipate energy into the environment because of the loss of information. This paper takes advantage of Multiple Valued Logic (MVL) quaternary universal set, that reduces integrated circuits (IC) interconnections, decreasing IC area, and with reversible gates that minimizes IC dissipation. The reversible computation permits both forward and backward computations, keeping the information entropy constant and decreasing heat dissipation, according to Landauer principle. The reversible gates are designed as an extension of the set of gates: Extended AND (eANDi: eAND1, eAND2, eAND3), Maximum (MAX) and Successor (SUC) already proposed in the literature. The voltage mode gates are implemented by means of three cascaded subsystems: the first subsystem discriminates 0,1,2,3 logical levels; the second subsystem performs the logic to implement each operator functionality; and the third subsystem set the right voltage output corresponding to 0,1,2,3 logical levels. Simulations with only 25, 18, 32, 10 and 32 CMOS transistors, respectively, utilizing AustriamicrosystemsTM technology with Cadence VirtuosoTM tool demonstrate correct circuit behavior. These implementations present, for the irreversible circuits presented in the literature, fewer number of transistors.