Memory and voltage monitoring device thereof

Details Memory and voltage monitoring device thereof Memory and voltage monitoring device thereof

2011-03-15

2011-03-15

Nguyen, Tuan T (Department: 2824)

Static information storage and retrieval

Read/write circuit

Including reference or bias voltage generator

C365S185230, C365S226000, C365S201000, C365S154000

Reexamination Certificate

active

07907457

ABSTRACT:
A memory and a voltage monitoring device thereof are provided. the voltage monitoring device of the memory includes a system voltage detector, a charge pump circuit and a data output unit. The system voltage detector is coupled to the charge pump circuit and the data output unit for detecting a system voltage and thereby producing control signals. The charge pump circuit can produce a word line voltage according to the above-mentioned control signals. The data output unit decides outputting the above-mentioned control signals or the output data of the memory according to a special command, wherein the control signals correspond to the word line voltages. Therefore, the control signals and the word line voltages may be easily monitored.

REFERENCES:
patent: 5079744 (1992-01-01), Tobita et al.
patent: 6002630 (1999-12-01), Chuang et al.
patent: 6343036 (2002-01-01), Park et al.
patent: 7359255 (2008-04-01), Kimura et al.
patent: 7551488 (2009-06-01), Tanikawa et al.
patent: 2006/0279442 (2006-12-01), Kimura et al.

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