| US 7,447,089 B2 | ||
| Bitline precharge voltage generator | ||
| Jae-Hyuk Im, Kyoungki-do (Korea, Republic of); and Kee-Teok Park, Kyoungki do (Korea, Republic of) | ||
| Assigned to Hynix Semiconductor Inc., Kyoungki-Do (Korea, Republic of) | ||
| Filed on Sep. 08, 2006, as Appl. No. 11/517,351. | ||
| Claims priority of application No. 10-2005-0083691 (KR), filed on Sep. 08, 2005. | ||
| Prior Publication US 2007/0053232 A1, Mar. 08, 2007 | ||
| Int. Cl. G11C 7/00 (2006.01) | ||
| U.S. Cl. 365—203 [365/189.06; 365/189.07; 365/189.09; 365/191] | 20 Claims |
| 1. A bitline precharge voltage generator, comprising:
a core voltage level detecting unit for detecting a core voltage level, activating a first enable signal when the core voltage
level is lower than a specific voltage level, and activating a second enable signal when the core voltage level is higher
than the specific voltage level;
a bitline precharge voltage generating unit for generating a bitline precharge voltage corresponding to half of the core voltage
level when the first enable signal is activated; and
a bitline precharge voltage clamping unit for generating 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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