| 摘要 |
PURPOSE: A method of resetting data buses is provided to promote the low power consumption and the high speed of action. CONSTITUTION: A reading command is generated by a control unit(11c). Before a writing command is generated, a reset circuit(11) makes a reset level of data buses(DB,/DB) as a Vdd/2 level by operating a first reset circuit unit(11a). The reset circuit makes the reset level of data buses as a Vdd level by operating a second reset circuit unit(11b) until the next writing command is generated. Thus, the power consumption is prevented in the reset operation during the writing operation. Moreover, the reading operation is quickened because a charge transfer speed of gates gets faster during the reading operation.
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