DS91M040:
Is there a maximum current for the clamping diode on the LVCMOS input pins.
In normal operation IO voltage will be < VDD.
But we have a possible condition (if devices aren't sequenced correctly) where 10k pullups to 3V3 could be applied to the IO before the device is powered.
Max current per IO = 3V3/10k = 330uA
6 IO affected (total < 2mA)
Could this cause damage?
MDE will be '0' in this condition so the device should not try to operate if back-powered
Also are the MLVDS interfaces hot-pluggable:
Can MLVDS signals be applied to the device before it is powered?
(Datasheet suggests they are but not totally clear)
Many thanks.
