Electronic digital logic circuitry – Interface – Logic level shifting
Reexamination Certificate
2006-04-25
2006-04-25
JeanPierre, Peguy (Department: 2819)
Electronic digital logic circuitry
Interface
Logic level shifting
Reexamination Certificate
active
07034572
ABSTRACT:
A voltage level shifting circuit and method that can be used for shifting the voltage level of an input signal to provide an output signal having a higher output voltage level. The voltage level shifting circuit includes pull-up transistors that are switched OFF by the voltage of a pair of switching nodes and not the voltage at the output node. The speed at which the pull-up transistors can be switched OFF is decoupled to some extent from the speed at which the voltage at the output node changes. Additionally, having the output node separated from the nodes that switch the pull-up transistors OFF further allows for dimensions of the various transistors of the voltage level shifting circuit to be scaled advantageously.
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Kim Tae H.
Kirsch Howard C.
Dorsey & Whitney LLP
Jean-Pierre Peguy
Micro)n Technology, Inc.
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