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Effects of Unexpected Power Interruptions on Embedded Flash Media

Aug 12, 2014

Use of NAND flash storage continues to proliferate throughout many industrial segments and applications due to declining costs per gigabyte, high performance, and low power requirements. However, one of the main challenges of current NAND flash technology is its susceptibility to data corruption during unexpected power loss. Furthermore, maintaining a steady and uninterrupted power supply can be a tricky task in many industrial and embedded systems, especially in battery-operated and rechargeable portable devices, which are particularly sensitive to loss of power due to battery discharge or drop-out during the course of device operation.

This white paper seeks to explain the specific effects of unexpected power failure on flash media, as well as highlight “best practices” for mitigating data corruption as a result of power loss.