Abstract

In the beyond-CMOS era, many researchers are investigating technologies that have the potential of complementing, if not overtaking, silicon-based electronics. One of which is rapid single flux quantum (RSFQ) superconductive technology. Due to timing and uncertainties challenges, the promised benefits of three orders of magnitude lower power at an order of magnitude higher performance does not look attainable. In this paper, we propose an innovative self-adaptive clocking technique which is designed to be robust against an unprecedented variability. Whereas the traditional zero-skew clocking is not reliable for large scale RSFQ designs, our proposed hierarchical chains of homogeneous clover-leaves clocking inherits its robustness from spatially correlated cell delays and from the timing robustness of the RSFQ traditional counter-flow clocking. Our simulations on ISCAS'85 benchmark circuits show our …

Date

2018

Authors

Ramy N Tadros, Peter A Beerel

Conference

2018 IEEE International Symposium on Circuits and Systems (ISCAS)

Pages

1-5

Publisher

IEEE