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eMMC-Slide5

Since card data is stored as electrons in a floating gate, retention of the eMMC’s data is not infinite. Endurance cycles and temperature both affect overall data retention time, and when the card is subject to higher operating temperatures, it is also negatively affected. Panasonic’s test data for two different types of NAND flash is shown here. Typical write cycle information and retention data for eMMC is shown on the left side of the graph, due to Panasonic’s eMMC’s use of MLC flash.

PTM Published on: 2018-08-14