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Altera_Forum's avatar
Altera_Forum
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16 years ago

Arbitrary VCCIO

Hi, I want to use a Cyclone II device to drive some low power logic. That logic require inputs around 200mv (as logic 1). Is it possible to set the Cyclone's VCCIO that low, and will it give me ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

Thank for the idea.

I guess i'll need several high precision resisters.

An other question related: can i change the VCCIO when the system is powered on? In my current project i have a variable supply connected to VCCIO and changing it's voltage changed the output. However, I'm not sure if this is good for the Altera device.