An integrated circuit includes circuitry performing memory operations. The power from only one of a first power lead and a second power lead is sufficient for the circuitry to operate. A package encasing the integrated circuit. Leads on the package electrically couple power and data from an exterior of the package to the integrated circuit encased by the package, including the first power lead, the second power lead, and a ground lead. An isolation circuit electrically couples the circuitry to the first power lead but not the second lead at a first time, and electrically couples the circuitry to the second power lead but not the first power lead at a second time.