| 摘要 |
A semiconductor memory device includes a write driver, a first precharging unit, and a second precharging unit. The write driver loads data applied to a first data line onto a second data line. The first precharging unit precharges the second data line to a precharging voltage in response to a precharging signal. The second precharging unit overdrives the second data line to a voltage higher than the precharging voltage in response to an overdriving signal enabled for a predetermined time period during an initial precharging interval of the second data line.
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