SIGNAL BUFFER FOR HIGH SPEED SIGNAL TRANSMISSION AND SIGNAL LINE DRIVING CIRCUIT COMPRISING THE SAME

摘要

PURPOSE: A signal buffer for high speed signal transmission and a signal line driving circuit comprising the same are provided for a small chip area to increase a transmission speed of a signal on a signal line. CONSTITUTION: A pull-up driver pulls up an input/output port(D) in response to a control signal. A control circuit generates the above control signal by detecting a rising transition of a signal of the above input/output port in response to a signal of a control port(C). The pull-up driver comprises a PMOS transistor where a power supply voltage is applied to a source and the above control signal is applied to a gate and the above input/output port is connected to a drain.