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IEICE Electronics Express
Online ISSN : 1349-2543
ISSN-L : 1349-2543
LETTER
Novel explicit pulse-based flip-flop for high speed and low power SoCs
Sung-Chan KangByung-Hwa JungBai-Sun Kong
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JOURNAL FREE ACCESS

2007 Volume 4 Issue 23 Pages 731-737

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Abstract

In this paper, novel explicit pulse-based flip-flop having dual precharge nodes is presented. Dual precharging can minimize the parasitic capacitance of each precharge node by making output transistors driven separately, resulting in high-speed and low-power operation. The switching speed is further improved by avoiding the use of stacked transistors for driving the output load. Pulse-based nature of the proposed flip-flop also provides a negative setup time and minimizes the effects of clock skew. The proposed flip-flop was designed using a 0.18um CMOS technology, whose comparison results indicate that the flip-flop achieves up to 32% power reduction with 11% speed improvement. They also indicate that the power-delay product is decreased by up to 39% compared to conventional pulse-based flip-flops.

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© 2007 by The Institute of Electronics, Information and Communication Engineers
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