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Intel: I'm using VCCIO at 1.5V, can I input a 3.3V signal?

Category: Specifications
tool:-
device:-


It is possible, but the recommendation is to follow Multivolt I/O in the documentation for each device.

For single-ended inputs, the maximum input voltage for all VCCIOs is the VI (DC Input Voltage) value listed in the Recommended Operating Conditions for each device.

This information is also available in Altera's knowledge database.
https://www.altera.co.jp/support/support-resources/knowledge-base/solutions/rd05102011_241.html


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