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Performance analysis and optimisation of NCL self-timed rings

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5 Author(s)
Kuang, W. ; Sch. of Electr. Eng. & Comput. Sci., Univ. of Central Florida, Orlando, FL, USA ; Yuan, J.S. ; DeMara, R.F. ; Hagedorn, M.
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A self-timed ring using NULL convention logic (NCL) is presented. An analytical method to evaluate the speed of NCL rings has been developed. The analytical predictions are verified by a Synopsys simulation and excellent agreement between the theoretical predictions and simulation results is obtained. Some important principles for ring optimisation are obtained. The analysis leads to the speed optimisation of a 24-bit NCL divider.

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Circuits, Devices and Systems, IEE Proceedings -  (Volume:150 ,  Issue: 3 )