| 摘要 |
A semiconductor device includes a code generator configured to generate a supplementary code with a value changing in response to a variation of an impedance code, a main driver configured to receive an output data and drive the received output data to a data output pad, wherein a driving force of the main driver is controlled according to the impedance code, and an auxiliary driver configured to receive the output data and drive the received output data to the data output pad, wherein a driving force of the auxiliary driver is controlled according to the supplementary code.
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