| 摘要 |
<p>A semiconductor device is provided with a first buffer circuit capable of high-speed operation for transmitting input signals, a second buffer circuit having a lower driving capacity than that of the first buffer circuit and transmitting the input signals, and a control circuit for detecting the transition of the input signals and activating the first buffer circuit during the period in which the signals are undergoing a transition. When the input signals undergo a transition, the output signals are changed by the first buffer circuit. When the amplitude of the output signal is maintained, the first buffer circuit is brought into an inactive state to maintain the amplitude by the second buffer circuit. While having high-speed operation performance, power consumption can be reduced in low-frequency operation.</p> |
