Fast startup hybrid memory module
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United States of America Patent
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Apr 28, 2015
Grant Date -
Jun 13, 2013
app pub date -
Nov 13, 2012
filing date -
Jul 10, 2008
priority date (Note) -
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Abstract
A memory device is provided comprising: a volatile memory device, a non-volatile memory device, a memory control circuit volatile memory controller coupled to the volatile memory device and non-volatile memory device, and a backup power source. The backup power source may be arranged to temporarily power the volatile memory devices and the memory control circuit upon a loss of power from the external power source. Additionally, a switch may serve to selectively couple: (a) a host memory bus to either the volatile memory device or non-volatile memory device; and (b) the volatile memory device to the non-volatile memory device. Upon reestablishment of power by an external power source from a power loss event, the memory control circuit is configured to restore data from the non-volatile memory device to the volatile memory device prior to a host system, to which the memory device is coupled, completes boot-up.
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