Question

Can the Si86xx have 2.5V on one side and 5V on the other side?  Can I use it as a level shifter?

Answer

Yes, internally the Si86xx has two independent dies that are each powered separately.  Either die can be powered from 2.5V to 5.5V.

 

Learn more about the Si86xx isolators: http://www.silabs.com/products/isolation/digital-isolators/si86xx-digital-isolators

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