Novel latch for adiabatic quantum-flux-parametron logic

Journal Article · Fri Mar 14 00:00:00 EDT 2014 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4868336· OSTI ID:22277885

Takeuchi, Naoki; Yamanashi, Yuki; Yoshikawa, Nobuyuki ^[1]; Ortlepp, Thomas ^[2]

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1. Department of Electrical and Computer Engineering, Yokohama National University, 79-5 Tokiwadai, Hodogaya, Yokohama 240-8501 (Japan)
2. CiS Research Institute for Microsensor Systems and Photovoltaics, Konrad-Zuse-St. 14, 99099 Erfurt (Germany)

We herein propose the quantum-flux-latch (QFL) as a novel latch for adiabatic quantum-flux-parametron (AQFP) logic. A QFL is very compact and compatible with AQFP logic gates and can be read out in one clock cycle. Simulation results revealed that the QFL operates at 5 GHz with wide parameter margins of more than ±22%. The calculated energy dissipation was only ∼0.1 aJ/bit, which yields a small energy delay product of 20 aJ·ps. We also designed shift registers using QFLs to demonstrate more complex circuits with QFLs. Finally, we experimentally demonstrated correct operations of the QFL and a 1-bit shift register (a D flip-flop)

• OSTI ID: 22277885
• Journal Information: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 10 Vol. 115; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COMPACTS
COMPUTERIZED SIMULATION
DESIGN
ENERGY LOSSES
LOGIC CIRCUITS
QUANTUM MECHANICS
READOUT SYSTEMS