There have been numerous nanowire crossbar architectures proposed till date, although all of them are envisioned to be synchronous (i.e., clocked). The clock is an important part in a circuit and it needs to be connected to all the components to synchronize their operation. Considering non-deterministic nature of nanoscale integration, realizing them on a nano wire crossbar system would be quite cumbersome. Unlike the conventional clocked counterparts, a new clock-free crossbar architecture is proposed to resolve the issues with clocked counterparts in this paper, where the use of clock is eliminated from the architecture. This has been done by implementing delay-insensitive logic encoding technique called Null Convention Logic (NCL). A delay-insensitive full adder has been implemented on the proposed architecture to demonstrate the feasibility in this paper.
R. Bonam et al., "Clock-free Nanowire Crossbar Architecture Based on Null Convention Logic (NCL)," Proceedings of the 7th IEEE International Conference on Nanotechnology, 2007, Institute of Electrical and Electronics Engineers (IEEE), Jan 2007.
The definitive version is available at http://dx.doi.org/10.1109/NANO.2007.4601146
7th IEEE International Conference on Nanotechnology, 2007
Electrical and Computer Engineering
Keywords and Phrases
Asynchronous Computing; Defect & Fault-Tolerance; Manufacturability; Nanowire Crossbar; Null Convention Logic (NCL); Robustness; Scalability
Article - Conference proceedings
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