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Low power modes when using external SRAM and FMC

Aaron McNeil
Associate III

What is the best way to handle entering and exiting Stop1 and Stop2 modes while using external SRAM in my application?

The problem I seem to be having is when I leave my lines configured for the FMC controller when entering Stop1 or Stop2, my current consumption is much higher. Is the best practice to change these lines to analog mode, enter sleep, then reconfigure upon wake up? Doing this would come with some risk, as I would have to take extra precautions to make sure no false data is written to the SRAM chip while the lines are floating.

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