Patent ID: 6326822
Filing Date: 2001-12-04
Classification: H03K

Abstract:
An apparatus for driving a data bus, comprising:a first voltage transmitter for transmitting a first bus driving voltage to the data bus in response to a control signal, the first bus driving voltage corresponding to input data having a high level;a second voltage transmitter for transmitting a second bus driving voltage to the data bus in response to the control signal, the second bus driving voltage having a level that is lower than the level of the first bus driving voltage by a predetermined difference level and corresponding to a low level of the input data;a control signal generator for outputting the control signal in response to the input data; anda voltage reducer for reducing the first bus driving voltage transmitted to the data bus by a voltage having a level higher than or equal to the predetermined difference level in response to the input data and the control signal when the input data transitions from the high level to the low level.