  The modeling of conventional (deterministic) electronic circuits - ones
consisting of transistors, resistors, capacitors, inductors, and other
traditional electronic components - is a well-established subject. The
cycle-to-cycle variability of emerging electronic devices, in particular,
certain ReRAM cells, has led to the concept of stochastic circuits.
Unfortunately, even in relatively simple cases, the direct transient analysis
of stochastic circuits is computationally demanding and potentially
impractical, if possible at all. An important development in this area has been
the application of a master equation that is easily implemented in SPICE. In
this conference paper, we briefly review the master equation approach and
present an improved implementation of this approach in SPICE. Moreover, we find
an attractor state in a periodically driven memristive circuit - a stochastic
counterpart of deterministic memristor attractors.
