Member level 1
Here I've got a chip which has power suply pin VDD of 3.3v and 2.5v at the same time. What does it needs both of them? Is it that they will used to directly drive the drain and source of the EFTs (Field Effect Tube)respectively in a CMOS ASIC chip? And what voltage will logic "1" or "0" will be represented as? Tanks a lot!