Auto-suspend and auto-resume operations for a multi-die NAND memory device to reduce peak power consumption
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United States of America Patent
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Sep 13, 2016
Grant Date -
Oct 2, 2014
app pub date -
Mar 28, 2013
filing date -
Mar 28, 2013
priority date (Note) -
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Abstract
A method and apparatus that controls a peak-current condition in a multi-die memory, such as a solid-state drive, by determining by at least one die of the multi-die memory whether a subsequent memory operation is a high-current memory operation, such as an operation to enable a charge pump of the die, an operation to charge a bit line of the die, or a program/erase loop operation, or a combination thereof. The die enters a suspended-operation mode if the subsequent memory operation is determined to be a high current memory operation. Operation is resumed by the die in response to a resume operation event, such as, but not limited to, a command specifically address to the die, an indication from another die that a high-current memory operation is complete. Once operation is resumed, the die performs the high-current memory operation.
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