Techniques associated with a read and write window budget for a two level memory system
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United States of America Patent
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Sep 9, 2014
Grant Date -
Mar 27, 2014
app pub date -
Sep 26, 2012
filing date -
Sep 26, 2012
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Abstract
Techniques associated with a read and write window budget for a two level memory (2LM) system may include establishing a read and write window budget for the 2LM system that includes a first level memory and a second level memory. The established read and write window budget may include a combination of a first set of memory addresses and a second set of memory addresses of the second level of memory. The first set of memory addresses may be associated with non-volatile memory cells having wider cell threshold voltage distributions compared to cell threshold voltage distributions for non-volatile memory cells associated with the second set of memory addresses. According to some examples, the established read and write window budget may be part of a strategy to meet both a completion time threshold for a given amount of memory and an acceptable error rate threshold for the given amount of memory when fulfilling read or write requests to the second level memory.
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