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Altera_Forum
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16 years ago

VCCIO Voltage Change

Hi, I use EP3C10F256C8 chip , VCCIO set 1.8V , if other IO pin input set Hi(3.3V), result VCCIO change 2.2V? VCCIO set 1.5V , if other IO pin input set Hi(3.3V), result VCCIO change 2.2V?
Altera_Forum's avatar
Altera_Forum
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16 years ago

Thank you for mentioning AN447. It's scope is different however, targetting to the said overshoot problem. So it effectively doesn't give new insights why the original Multi-IO feature has been abandoned I think.