Memory system having an unequal number of memory die on different control channels
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United States of America Patent
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Dec 29, 2015
Grant Date -
Jul 3, 2014
app pub date -
Mar 14, 2013
filing date -
Dec 31, 2012
priority date (Note) -
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Abstract
A flash memory system having unequal number of memory die and method for operation are disclosed. The memory system includes a plurality of flash memory die distributed unevenly among different control lines, such that there are an unequal number of die between control lines. A total physical capacity of the plurality of flash memory die is greater than a total logical capacity such that the memory system is over provisioned with physical capacity. A logical address splitter directs data received from a host system and associated with host logical block addresses such that each control line only receives data associated with predetermined host logical block address ranges and directs the data such that a ratio of physical capacity to logical capacity is equal among each of the control lines, regardless of the different number of die and associated different physical capacity per control line.
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