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2002
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Estimation of Maximum Power-Up Current

10 years 11 months ago
Estimation of Maximum Power-Up Current
Power gating is emerging as a viable solution to reduction of leakage current. However, power gated circuits are different from the conventional designs in the sense that a power-gated circuit must be brought to a valid state from the power-off state, when all nodes in the circuit are at logic zero state, before useful computation can begin. Thus, estimation of the maximum current in a power gated circuit must determine the maximum of all possible power-up and normal switching current. In this paper, we propose a cluster-based ATPG algorithm to estimate the maximum power-up current for combinational circuits. Our method achieves substantial improvement over simulation-based methods and also over the previously proposed ATPG-based methods. Further, we also formulatethe sequential circuit maximum current problem as a combinational ATPG problem, and solve it using the cluster-based estimation algorithm. Experimental results show that the maximum power-up current for sequential circuits c...
Fei Li, Lei He, Kewal K. Saluja
Added 01 Dec 2009
Updated 01 Dec 2009
Type Conference
Year 2002
Where VLSID
Authors Fei Li, Lei He, Kewal K. Saluja
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