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Circuit for entering/exiting semiconductor memory device into/from low power consumption mode and method of controlling internal circuit at low power consumption mode
Circuit for entering/exiting semiconductor memory device into/from low power consumption mode and method of controlling internal circuit at low power consumption mode
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机译:用于使半导体存储器件进入/退出低功耗模式的电路以及在低功耗模式下控制内部电路的方法
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摘要
An internal voltage generator when activated, generates an internal voltage to be supplied to an internal circuit. Operating the internal voltage generator consumes a predetermined amount of the power. In response to a control signal from the exterior, an entry circuit inactivates the internal voltage generator. When the internal voltage generator is inactivated, the internal voltage is not generated, thereby reducing the power consumption. By the control signal from the exterior, therefore, a chip can easily enter a low power consumption mode. The internal voltage generator is exemplified by a booster for generating the boost voltage of a word line connected with memory cells, a substrate voltage generator for generating a substrate voltage, or a precharging voltage generator for generating the precharging voltage of bit lines to be connected with the memory cells.
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