Semiconductor device including voltage level conversion...

Details Semiconductor device including voltage level conversion... Semiconductor device including voltage level conversion...

2007-02-20

2007-02-20

Phung, Anh (Department: 2824)

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C365S189050

Reexamination Certificate

active

10997891

ABSTRACT:
A semiconductor device for easily changing an operating voltage of an I/O circuit. The I/O circuit includes a first I/O cell, which operates with a first high-potential power supply, and a second I/O cell, which operates with a second high-potential power supply. The I/O circuit includes a control circuit for selectively activating the first and second I/O cells according to a voltage selection signal. In the I/O circuit, a signal having a voltage according to an operating voltage of the selected I/O cell is generated.

REFERENCES:
patent: 6072354 (2000-06-01), Tachibana et al.
patent: 6278294 (2001-08-01), Taniguchi
patent: 6829177 (2004-12-01), Bedarida et al.
patent: 6980035 (2005-12-01), Zhou et al.
patent: 2002/0024873 (2002-02-01), Tomishima et al.

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