| 摘要 |
An output buffer for buffering output data includes a bias voltage generator for generating first and second bias voltages responsive to a reference voltage, an output driver in signal communication with the bias voltage generator for driving an output terminal, a first slew rate controller in signal communication with the output driver for controlling a pull-up slew rate of the output driver in response to the output data and the first bias voltage, a second slew rate controller in signal communication with the output driver for controlling a pull-down slew rate of the output driver in response to the output data and the second bias voltage, and a slew rate compensator in signal communication with the output ends of the first and second slew rate controllers and the output terminal for compensating for slew rate variation in response to a change in the load capacitance of the output terminal.
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