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Content Provider | IEEE Xplore Digital Library |
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Author | Alioto, M. Consoli, E. Palumbo, G. |
Copyright Year | 2009 |
Description | Author affiliation: Department of Information Engineering University of Siena Siena, Italy (Alioto, M.) || Dep. of Electrical, Electronics and Systems Engineering University of Catania Catania, Italy (Consoli, E.; Palumbo, G.) |
Abstract | In this paper, the influence of the clock slope (i.e., rise/fall time) on the performance and the energy dissipation of Pulsed flip-flop (FF) topologies is investigated. Results show that the adoption of a greater clock slope leads to a slight flip-flop energy increase, as well as to a negligible speed penalty. This insensitivity of Pulsed FF performance on the clock slope is shown to be a significant advantage that permits to relax (i.e., increase) the clock slope requirement at a given FF performance. In turn, this allows for downsizing the buffers of the local clock network, thereby reducing the overall energy dissipation within a clock domain. Detailed analysis shows that an optimum clock slope exists that minimizes the energy associated with the clock network within a clock domain. This optimization is shown to bring significant energy savings, which can be close to 50 % for a FF speed degradation of only a few percentage points. Extensive post-layout simulations are performed on a 65-nm CMOS technology to validate the theoretical results. |
Starting Page | 61 |
Ending Page | 64 |
File Size | 1324708 |
Page Count | 4 |
File Format | |
ISBN | 9781424438969 |
DOI | 10.1109/ECCTD.2009.5274988 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 2009-08-23 |
Publisher Place | Turkey |
Access Restriction | Subscribed |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | Degradation Energy consumption Delay effects Energy dissipation CMOS technology Inverters Topology Clocks Flip-flops Power engineering and energy |
Content Type | Text |
Resource Type | Article |
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