Although the 5.0-V interface has been a standard for decades, the movetowards advanced process technology requires a shift to lower voltagelevels. In today’s market, printed circuit boards (PCBs) are assembledwith a mixture of 5.0-V, 3.3-V, 2.5-V, and 1.8-V devices. To accommodatethis mixture seamlessly, it is essential that these devices interface withsystems of differing supply voltages.……