Driving voltage controller of sense amplifiers for memory...

Details Driving voltage controller of sense amplifiers for memory... Driving voltage controller of sense amplifiers for memory...

2005-05-10

2005-05-10

Auduong, Gene N. (Department: 2818)

Static information storage and retrieval

Addressing

Particular decoder or driver circuit

C365S205000, C365S226000

Reexamination Certificate

active

06891773

ABSTRACT:
Disclosed is a driving voltage controller of sense amplifiers for a memory device which prevents the sense amplifier from being over-driven when an external power voltage is used for an internal driving voltage of the sense amplifier. Reference voltage generator generates a reference voltage. Core voltage generator generates a core voltage to be used for driving voltage of sense amplifier. Comparator compares the core voltage generated by core voltage generator with the reference voltage generated by reference voltage generator. Clamp adjusts a level of the core voltage generated by the core voltage generator based on an output signal of comparator. In the case where an external power used for a driving voltage of the sense amplifier is excessively high, the comparator compares the external power voltage with the reference voltage. When the driving voltage of sense amplifier exceeds the reference voltage, the clamp drops the driving voltage of sense amplifier. Thus, the core voltage can be stably supplied.

REFERENCES:
patent: 5689460 (1997-11-01), Ooishi
patent: 5881014 (1999-03-01), Ooishi
patent: 5943273 (1999-08-01), Hidaka et al.
patent: 6097635 (2000-08-01), Chang

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