A divide-and-conquer approach to estimating minimum/maximum leakage current
Resource
Circuits and Systems, 2005. ISCAS 2005. IEEE International Symposium on
Journal
Circuits and Systems, 2005. ISCAS 2005. IEEE International Symposium on
Pages
-
Date Issued
2005-05
Date
2005-05
Author(s)
Liao, Guang-Wan
Feng, Ja-Shong
Lin, Rung-Bin
DOI
N/A
Abstract
Forcing primary inputs and memory elements into certain logic values is a viable method to lower standby leakage current for CMOS circuits. The paper presents a divide-and-conquer approach to finding an input vector that leads a circuit into a low (high) leakage state. With only a small fraction of time, our approach can achieve up to 11% smaller leakage than the lowest and up to 20% larger leakage than the highest, respectively, attainable with 100K random vectors for the large ISCAS benchmark circuits. Our results are as good as those obtained by simulated annealing and genetic algorithms that run for a very long time. Due to its divide-and-conquer nature, it is scalable for even larger circuits.
Type
journal article
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