Method and apparatus for pre-charging data lines in a memory cell array
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United States of America Patent
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May 12, 2015
Grant Date -
Oct 11, 2012
app pub date -
Apr 6, 2011
filing date -
Apr 6, 2011
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Abstract
Memories, pre-charge circuits, and methods for pre-charging memory are described. One such method includes providing a voltage to a data line and adjusting the voltage provided to the data line based at least in part on a voltage difference between a target voltage and a voltage of the data line being pre-charged. An example pre-charge circuit includes a voltage generator configured to generate an output voltage having a magnitude based at least in part on a reference voltage and a feedback signal, first and second drivers, and a voltage detector. The voltage detector is configured to determine a voltage difference between the reference voltage and a sample voltage of a data line coupled to the second driver and generate the feedback signal based at least in part on the difference.
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