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Altera_Forum
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11 years ago

Unused bank - VCCPD, VCCIO and VREF pins

Hello everyone, If I do not want to use a certain bank of the Cyclone V, do I have to power the VCCPD, VCCIO and VREF pins? Cheers, Adam
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

The handbook (Table 10-2) says that the POR circuit does not monitor VCCIO but it does monitor VCCPD. From that I'm guessing you have to power both VCCIO and VCCPD in all banks. No problem not powering VREF for sure.

What is your motivation for not powering the bank? The power savings would be minuscule in an idle bank.