| 摘要 |
PURPOSE: A word line driving circuit is provided to suppress current increase in a precharge state by replacing a main word line driver signal with a redundant main word line driver signal and by floating a corresponding main word driver signal when there is a connection with an adjacent power supply line. CONSTITUTION: According to the word line driving circuit comprising a main word line driving circuit generating a word line driving signal(HBMWB) and a control circuit generating a control signal to control it, the main word line driving circuit includes a pull-up transistor, a pull-down transistor connected directly, and a control unit. The control unit enables the word line driving signal into a low state by turning off the pull-up transistor and turning on the pull-down transistor when an active command is inputted, and precharges the word line driving signal into a high state by turning on the pull-up transistor and turning on the pull-down transistor for a constant time when a precharge command is inputted and then turns off the pull-up transistor and the pull-down transistor after precharge and thus makes the word line driving signal be in a floating state.
|
