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Altera_Forum's avatar
Altera_Forum
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13 years ago

High VCCIO and consumption

Hello, I am currently working on a Stratix IV GX and I have to push VCCIO higher than 3.3V (I am aware this not a good idea concerning the longterm lifetime) when other VCCs stay at there init...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

No one on this list will be able to provide any definitive answer. You're essentially "violating your warranty", so "your mileage may vary" :)

Why do you need to operate the VCCIO at the higher voltage?

If you have a device external to the FPGA that requires a 3.6V interface, then you can interface to the FPGA using BusSwitches or dual-power rail buffers.

If you can explain the problem you are trying to solve, perhaps the forum can offer alternative solutions that do not violate the operating conditions of the device.

Cheers,

Dave