| 摘要 |
PROBLEM TO BE SOLVED: To perform data transfer between hierarchized data lines with low power consumption. SOLUTION: A semiconductor device is equipped with switch transistors 41 and 42 provided between a sub data line LIO and a main data line MIO. In transferring data, a voltage of VPP level is supplied to gate electrodes of the switch transistors 41 and 42 when these transistors are brought into conduction, and a voltage of VPERI level is supplied to the gate electrodes when these transistors are brought into nonconduction. Since the voltage of the gate electrodes is not lowered to a voltage of VSS level when the switch transistors 41 and 42 are brought into nonconduction, a charge and discharge current of a gate capacitance is reduced. Since the voltage of VPP level is supplied when the switch transistors 41 and 42 are brought into conduction, a voltage level after data transfer does not decrease by a threshold voltage. COPYRIGHT: (C)2011,JPO&INPIT
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