Title :
JCTL: a Josephson complementary ternary logic circuit
Author :
Morisue, M. ; Ochi, Kazuo ; Nishizawa, Masaki
Author_Institution :
Dept. of Electron. Eng., Saitama Univ., Urawa, Japan
Abstract :
A novel complementary ternary logic circuit using Josephson junctions as switching gates is described. The principle of the circuit is based on the tristate of a Josephson junction, that is the state of switching in either positive direction or negative direction, in addition to the state of no switching. The JCTL is constructed of two SQUIDs (superconducting quantum interference devices), one of which is switched in the positive directions and the other in the negative direction. The JCTL can perform the fundamental operations of AND, OR, and NOT in ternary form and can function as a full adder if the voltage-current characteristics of the two SQUIDs are adjusted appropriately. The advantage of the JCTL is its higher speed of operation with higher density than the conventional Josephson binary logic circuit. The principle of operation is described in detail, and simulation results are presented.<>
Keywords :
logic CAD; superconducting logic circuits; ternary logic; Josephson complementary ternary logic circuit; SQUIDs; full adder; simulation results; switching gates; tristate; voltage-current characteristics; Adders; Circuit simulation; Interference; Josephson junctions; Logic circuits; Multivalued logic; SQUIDs; Superconducting devices; Switching circuits; Voltage;
Conference_Titel :
Multiple-Valued Logic, 1988., Proceedings of the Eighteenth International Symposium on
Conference_Location :
Palma de Mallorca, Spain
Print_ISBN :
0-8186-0859-5
DOI :
10.1109/ISMVL.1988.5156
