Semiconductor memory device and method of controlling the...

Details Semiconductor memory device and method of controlling the... Semiconductor memory device and method of controlling the...

2007-07-17

2007-07-17

Lam, David (Department: 2827)

Static information storage and retrieval

Addressing

Plural blocks or banks

C365S203000, C365S207000

Reexamination Certificate

active

11058302

ABSTRACT:
A semiconductor memory device is provided that can conduct the equalizing operation of bit lines with a low current consumption while maintaining a normal accessing speed and the chip area, and a control method thereof. In a semiconductor memory device of the shared sense amplification system, in a predetermined number of times which is (k−1) times or less among k-times of continuous word line selections of a selected memory block, the bit line separation gate of the unselected memory block is rendered conductive in the active period of the equalizing unit after the word line selection. Also, a circuit that equalizes a wiring higher in the capacity component is driven by a higher voltage level according to the wiring capacity component of the sense amplification power supply line and the bit lines.

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