A pair of first local lines id connected to the pair of bit lines by a first switching unit.
一对第一局部线通过第一开关单元连接到一对位线。
A pair of second local lines is connected to the pair of first local lines by a second switching unit.
一对第二局部线通过第二开关单元连接到一对第一局部线。
A writing driver drives the second local lines using a normal-driving voltage in response to a data signal through a global line.
写入驱动器通过全局线响应数据信号，使用正常驱动电压驱动第二局部线。
The writing driver drives the second local lines using an over-driving voltage having a higher level than that of the normal-driving voltage during a predetermined period.
写入驱动器在预定周期期间，使用具有电平高于正常驱动电压的过驱动电压驱动第二局部线。
The writing driver drives the second local lines using an over-driving voltage having a higher level than that of the normal-driving voltage during a predetermined period.
写入驱动器在预定周期期间，使用具有电平高于正常驱动电压的过驱动电压驱动第二局部线。
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