Before revision: + Typical supply-pin labeling NPN BJT N-FET DCDC Positive supply voltage VCC/VBB VDD V+ VS+ VINVDDVA Negative supply voltage VEE VSS V− VS− Ground GND GND 0 0 GNDGNDGND The simplest labels are V+ and V−, but internal design and historical traditions have led to a variety of other labels being used.
After revision: + Typical supply-pin labeling NPN BJT N-FET DCDC Positive supply voltage VCC/VBB VDD V+ VS+ VINVDD Negative supply voltage VEE VSS V− VS− Ground GND GND 0 0 GNDGNDGND The simplest labels are V+ and V−, but internal design and historical traditions have led to a variety of other labels being used.