| 摘要 |
An internal clock generator that modulates a high-frequency clock signal to a low-frequency signal to transmit the low-frequency signal if a transmission line for transmitting the high-frequency clock signal is long, and then restores the transmitted low-frequency signal to the high-frequency signal. The internal clock generator includes a first signal generation unit for receiving a first signal having a first frequency and generating a second signal having a second frequency that is lower than the first frequency, and a second signal generation unit for receiving the second signal and generating a third signal having a frequency equal to the first frequency. Here, the third signal is used as a signal for controlling an operating time point of an internal circuit of a synchronous memory device.
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