Voltage control circuit and semiconductor device having the...

Details Voltage control circuit and semiconductor device having the... Voltage control circuit and semiconductor device having the...

2006-10-13

2009-06-30

Ho, Hoai V (Department: 2827)

Static information storage and retrieval

Read/write circuit

Including level shift or pull-up circuit

C365S230060

Reexamination Certificate

active

07554863

ABSTRACT:
A voltage control circuit of the present invention is applicable to a combination of a decoder circuit and a level conversion circuit connected to the decoder circuit. The voltage control circuit includes a level conversion circuit voltage line for applying a voltage to the level conversion circuit, and a boost voltage connection switch for switching a voltage applied to the level conversion circuit voltage line according to an output signal from the decoder circuit. This configuration makes it possible to prevent, when a boost voltage is applied to the level conversion circuit, the breakdown of transistors in the level conversion circuit due to a ripple in the boost voltage.

REFERENCES:
patent: 5282171 (1994-01-01), Tokami et al.
patent: 6111789 (2000-08-01), Choi et al.
patent: 6490189 (2002-12-01), Kang et al.
patent: 6535430 (2003-03-01), Ogura et al.
patent: 7184358 (2007-02-01), Kobayashi et al.
patent: 10-214495 (1998-08-01), None
patent: 2001-243786 (2001-09-01), None
patent: 2002-367388 (2002-12-01), None

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