| 摘要 |
A circuit for generating an on-die termination control signal is provided to prevent adjustment error according as performing on-die termination calibration operation in a period except normal operation period. A first signal generation part(100) generates a first signal to prevent first on-die termination calibration during a fixed period in order to change a voltage or a frequency. A second signal generation part(200) generates a second signal in order to perform second on-die termination calibration operation at initial time of operation. A signal output part(300) outputs an on-die termination control signal by assembling the first signal and the second signal. The fixed period includes a self refresh period.
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