Low voltage detector and method for detecting low voltage of...

Details Low voltage detector and method for detecting low voltage of... Low voltage detector and method for detecting low voltage of...

2006-05-02

2006-05-02

Phung, Anh (Department: 2824)

Static information storage and retrieval

Systems using particular element

Ferroelectric

C365S226000

Reexamination Certificate

active

07038933

ABSTRACT:
A low voltage detector and method of detecting low voltage of a nonvolatile memory chip is disclosed wherein a memory cell does not operate in a low voltage and definitly discriminate activation and deactivation voltage area of the chip by synchronizing operation start and stop points of a FeRAM cell to a chip enable signal according to variation of system power for safely operating the chip in threshold voltage region. In this way, because the chip safely operates even the threshold voltage region such as the on/off states of power voltage, the chip can be protected even at the on/off states of power voltage and the layout area of the chip becomes efficient without having additional circuits.

REFERENCES:
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patent: 5828596 (1998-10-01), Takata et al.
patent: 6031755 (2000-02-01), Ozawa
patent: 6201731 (2001-03-01), Kamp et al.
patent: 6760262 (2004-07-01), Haeberli et al.

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