Bitline precharge voltage generator

Details Bitline precharge voltage generator Bitline precharge voltage generator

2006-09-08

2008-11-04

Luu, Pho M. (Department: 2824)

Static information storage and retrieval

Read/write circuit

Precharge

C365S189060, C365S189070, C365S189090, C365S191000

Reexamination Certificate

active

07447089

ABSTRACT:
A bitline precharge voltage generator can generate multiple bitline precharge voltages when bitlines are precharged, thereby providing a stable operation regardless of a core voltage used as a high data voltage of a memory cell. In the bitline precharge voltage generator, a core voltage level detecting unit detects a core voltage level, activates a first enable signal when the core voltage level is lower than a specific voltage level, and activates a second enable signal when the core voltage level is higher than the specific voltage level. A bitline precharge voltage generating unit generates a bitline precharge voltage corresponding to half of the core voltage level when the first enable signal is activated. A bitline precharge voltage clamping unit generates a clamped bitline precharge voltage having a constant voltage level when the second enable signal is activated, regardless of the core voltage level.

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Korean Office Action issued in corresponding Korean Patent Application No. KR 10-2005-0083691, dated Oct. 30, 2006.
Korean Patent Gazette issued in Korean Patent Application No. KR 10-0706826 issued on Apr. 12, 2007.

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