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Altera_Forum
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17 years ago

Vi and VCCIO

hello, I am just starting designs with Altera devices and I hope my question will be easy to answer. 1. VCCIO is just a supply power for input and output buffers of the device. 2. If ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

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Can I connect a device with TTL 3.3 V outputs (means it drives 3.3 V to the FPGA input pins) to the 2.5V bank?

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Generally yes.

For details, consult the respective FPGA Device Manual, particularly the Multi-IO voltage part.