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http://dx.doi.org/10.5573/ieie.2015.52.2.112

Design of Low Power and High Speed NCL Gates  

Kim, Kyung Ki (Department of Electronic Eng., Daegu University)
Publication Information
Journal of the Institute of Electronics and Information Engineers / v.52, no.2, 2015 , pp. 112-118 More about this Journal
Abstract
Conventional synchronous circuits cannot keep the circuit performance, and cannot even guarantee correct operations under the influence of PVT variations and aging effects in the nanometer regime. Therefore, in this paper, a DI (delay insensitive) design based NCL (Null Convention Logic) design methodology with a very simple design structure has been used to design digital systems, which is one of well-known asynchronous design methods robust to various variations and does not require any timing analysis. Because circuit-level structures of conventional NCL gates have weakness of low speed, high area overhead or high wire complexity, this paper proposes a new lNCL gates designed at the transistor level for high-speed, low area overhead, and low wire complexity. The proposed NCL gate libraries have been compared to the conventional NCL gates in terms of circuit delay, area and power consumption using a asynchronous multiplier implemented in dongbu 0.11um CMOS technology.
Keywords
Null Convention Logic; NCL;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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1 J. Pangjun & S.S. Sapatnekar, "Low-power Clock Distribution Using Multiple Voltages and Reduced Swings," IEEE Trans. on VLSI Systems, Vol.10, pp. 309-318, 2002.   DOI   ScienceOn
2 Huajun Chi, Sangman Kim, and Jusung Park, "Mixed Dual-rail Data Encoding Method Proposal and Verification for Low Power Asynchronous System Design," Journal of IEEK, Vol. 51, No 7, pp. 66-102, 2014.   과학기술학회마을   DOI   ScienceOn
3 Myeong-Hoon Oh, "Design of QDI Model Based Encoder/Decoder Circuits for Low Delay-Power Product Data Transfers in GALS Systems," Journal of IEEK (SD), Vol. 43, No 1호, pp. 27-37, 2006.   과학기술학회마을
4 P. A. Beerel, R. O. Ozdag and M. Ferretti, "A Designer's Guide to Asynchronous VLSI", Cambridge University Press, 2010.
5 Scott C. Smith, Jia Di, "Designing Asynchronous Circuits using NULL Convention Logic (NCL)," Morgan & Claypool Publishers, 2009.
6 F. A. Parsan, W. K. Al-Assadi, S. C. Smith, "Gate Mapping Automation for Asynchronous NULL Convention Logic Circuits," IEEE Trans. on VLSI Systems, Vol. 22, Issue 1, pp.99-112, Jan. 2014.   DOI   ScienceOn
7 Kyung Ki Kim, "Design and Implementation of low power ALU based on NCL (Null Convention Logic)," Journal of the Korea Industrial Information System Society , V.18, No.5, pp. 59-65, 2013.   과학기술학회마을   DOI   ScienceOn
8 S. Yancey and S. C. Smith, "A Differential Design for C-elements and NCL Gates," IEEE MWSCAS, pp.632-635, Aug. 2010.
9 F. A. Parsan and S. C. Smith, "CMOS Implementation Comparison of NCL Gates," IEEE/IFIP VLSI-SoC, pp.41-45, Oct. 2012.
10 F. A. Parsan and S. C. Smith, "CMOS Implementation of Static Threshold Gates with Hysteresis: A New Approach," IEEE MWSCAS, pp.394-397, Aug. 2012.