Traditionally, the terms “low power” and “programmable logic” have not been used in the same context. However, the advent of the zero-power complex programmable logic device (CPLD) has transformed the discussion, as this technology brings the many advantages of programmable logic to designers of low-power electronic products. This paper explains how, in addition to the CPLD’s demonstrated ability to excel in general-purpose applications, zero-power CPLDs can now reduce overall power consumption in portable products.