We propose a methodology for applying gate-level logic transformations to optimize power in digital circuits. Statistically simulated[14] switching information, gate delays, signal arrival patterns, and signal probabilities are considered in reducing the switching activity-capacitance products. Power reduction up to 45.4% (average 12.4%) is achieved, with considerable improvements in area and delay, in preoptimized benchmarks. Also the effect of transformations on the random pattern testability of the circuits is studied.
Rajendran Panda, Farid N. Najm