Static information storage and retrieval – Read/write circuit – Having particular data buffer or latch
Patent
1999-01-04
2000-04-25
Mai, Son
Static information storage and retrieval
Read/write circuit
Having particular data buffer or latch
36518902, 326 26, 326 34, G11C 700
Patent
active
060551917
ABSTRACT:
A method and apparatus for applying a blocking potential for gating inputs of pull-up and pull-down devices of an output driver is described. The blocking potential is applied to either or both of a pull-up or pull-down transistor for reducing leakage current. In particular, a circuit having a voltage generator for producing the blocking polarity potential is connected to a voltage translator. A control signal is provided to the voltage translator for accessing the output driver. During accessing of the output driver, the blocking polarity potential is isolated from gating inputs of the pull-up and pull-down devices of the output driver. In a memory device employing the output driver, the blocking polarity potential is applied when the memory is in a state which does not activate the output driver. The blocking polarity is provided by a voltage divider using a substrate bias potential. A feedback path is employed to follow voltage applied to an output pad through substrate bias voltage.
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Loughmiller Dan
Sher Joseph
Mai Son
Micro)n Technology, Inc.
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