BATTERY-LESS CACHE MEMORY MODULE WITH INTEGRATED BACKUP

摘要

A memory module is provided composing a substrate having an interface to a host system, volatile memory, non-volatile memory, and a logic device. The device may receive the indicator of an external triggering event and copies data from the volatile memory devices to the non-volatile memory devices upon receipt of such indicator When the indicator of the triggering event has cleared, the logic device restores data from the non-volatile to the volatile memory devices. The memory module may include a passive backup power source (e.g., super-capacitor) charged by an external power source and temporarily provides power to the memory module to copy the data from volatile to non-volatile memory. A voltage detector within the memory module may monitor the voltage of an external power source, generating an indicator of a power loss event if voltage of the external power source falls below a threshold level.