State assignment for low-leakage finite state machines

The problem of minimizing both static and dynamic power of synchronous circuits in explored in this paper. We present a new cost function for evaluating the static leakage in finite state machines. New techniques for low leakage (static) and low power (dynamic) state assignment are considered. We show that there are 2ⁿ state assignments having equal dynamic cost and a different static cost. These techniques were applied to MCNC benchmark circuits and results are given.