Level-shifter circuit and memory device comprising said circuit

Details Level-shifter circuit and memory device comprising said circuit Level-shifter circuit and memory device comprising said circuit

2008-05-14

2010-11-16

Yoha, Connie C (Department: 2827)

Static information storage and retrieval

Read/write circuit

Including level shift or pull-up circuit

C365S185230, C365S185180

Reexamination Certificate

active

07835201

ABSTRACT:
A level-shifter circuit is adapted for shift an input voltage into an output voltage that is variable between a negative voltage value up to a preset positive voltage level. The shifter circuit includes a first circuit adapted to shift the input voltage into the preset positive voltage level, a second circuit adapted to transfer the preset voltage level to a third circuit connected to a preset negative voltage value. The third circuit is connected to a further voltage at a positive or nil level and is adapted to supply an output voltage to the preset negative level or to the positive or nil level.

REFERENCES:
patent: 6240027 (2001-05-01), Lee et al.
patent: 7257031 (2007-08-01), Darrer
patent: 2007/0279999 (2007-12-01), Watanabe et al.

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