The invention provides a plasma display unit using a scan electrode driver and driving method thereof. A scan electrode driver includes a scan integrated circuit including first and second control signal input terminals, a data input terminal, first and second voltage terminals and a plurality of output terminals, and a logic element. A voltage of the plurality of output terminals may be a voltage of one the plurality of voltage terminals at least based on a level of a control signal transmitted to the first control signal input terminal. The logic element may be adapted to perform an operation on the control signal to generate a second control signal to be applied to the second control signal input terminal. The scan integrated circuit may establish a voltage of the plurality of output terminals to be a voltage of the first or second voltage terminal based on a level of the control signal.