Level shifter

Details Level shifter Level shifter

2006-12-05

2006-12-05

Le, Don (Department: 2819)

Electronic digital logic circuitry

Interface

Logic level shifting

C326S083000

Reexamination Certificate

active

07145363

ABSTRACT:
In a level shifter for receiving a signal of a first voltage level and outputting a signal of a second voltage level, a pull-down driver pulls down a voltage level at an output terminal of the level shifter to a ground voltage level. A pull-up driver and an auxiliary pull-up device pull up the voltage level at the output terminal to the second voltage level. The level shifter can reduce leakage current and avoid operation delay of a device through the pull-up and pull-down drivers and that can implement a small-sized, lightweight and highly integrated semiconductor memory device.

REFERENCES:
patent: 5781026 (1998-07-01), Chow
patent: 6002290 (1999-12-01), Avery et al.
patent: 6433582 (2002-08-01), Hirano
patent: 6501306 (2002-12-01), Kim et al.
patent: 6510089 (2003-01-01), Taura et al.
patent: 10 1999 0057843 (1999-07-01), None

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