Vlsi, Semiconductors, Electronics, Semiconductor Market, Semiconductor Technology.
the output is connected to the Vdd or power supply. But when the input takes a transition from 0 to 1 or from 1 to 0, then at a certain voltage (Vdd/2), both PMOS and NMOS are on, and large current flows. When most of the CMOS are activated simultaneously (for example when bits flip from 1 to 0 or