Can unpowered H7 MCU suffer active IO?

[JZou.2]

The H7 MCU may be powered off by ex controller. At this suitation, can this unpowered MCU suffer other active IOs?

[waclawek.jan]

This depends on particular pins. 5V tolerant pins (marked FT and similarly, in the pin table in Datasheet) are usually specified to VDD+4.0V, i.e. they should be able to withstand 3V signals even when VDD=0V. Non-5V-tolerant pins (marked TT and similarly) usually can't go above VDD. Read the IO-relevant portions of the Operating conditions chapter in Datasheet.

JW

[JZou.2]

On this table, I can see tha max input for FT and TT are not less than 4.0V. Is this 4.0V still avaliable even VDD = 0v(mcu powered off)?