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Binary Counter with New Interface Circuits in the Extended Phase-Mode Logic Family
Takeshi ONOMI Yoshinao MIZUGAKI TsutomuYAMASHITA Koji NAKAJIMA
IEICE TRANSACTIONS on Electronics
Publication Date: 1996/09/25
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Toward Digital and Analog Applications of Superconductors)
Category: Superconductive digital integrated circuits
superconductive electronics, single flux quantum, logic circuit, Josephson junction, binary counter,
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A binary counter circuit in the extended phase-mode logic (EPL) family is presented. The EPL family utilizes a single flux quantum as an information bit carrier. Numerical simulations show that a binary counter circuit with a Josephson critical current density of 1 kA/cm2 can operate up to a 30 GHz input signal. The circuit has been fabricated using Nb/AlOx/Nb Josephson junction technology. New interface circuits are employed in the fabricated chip. A low speed test result shows the correct operation of the binary counter.