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Forum Post: Voltage applied to a pin on an unpowered device - MSP430FR2311

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MSP430 Team, I have an MSP40FR2311 application that is hot plugged. There will be voltage on the (GPIO) pins before the device is properly powered. QUESTION: What are the restrictions on applying voltage to a (GPIO) pin when the device is unpowered? Are we safe if we current limit the connections so that we limit to +/-2 mA at each pin? This is the absolute max diode current given in section 5.1 of the datasheet slase58b. I worry though about repeated application of an absolute max stress however. This could shorten the device lifespan. Regards, David

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