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Toby__5's avatar
Toby__5
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1 year ago

Can I connect 3.3V devices to cyclone10GX?

I want to connect an IC with an I/O voltage of 3.3V to cyclone10GX. However, the datasheet says it only supports up to 3V. Does this mean I can't connect directly to 3.3V devices? If you can't conne...
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FvM's avatar
FvM
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1 year ago
Datasheet specifies 3.3 V input voltage in recommended operating conditions plus overvoltage margin. 3.3V driver supply is o.k. if you avoid overshoot by placing suitable serial termination for longer lines.
Toby__5's avatar
Toby__5
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1 year ago

Thank you for your reply.

The device I want to check is the 10GX, not the Cyclone10LP.

It seems that the VCCIO conditions for Cyclone 10GX only include 3.0V (2.85V to 3.15V).

Does Vccio of the 3 V I/O bank mean that I can connect external I/O devices with a 3.3V level while keeping it at 3.0V?

Datasheet:Cyclone® 10 GX Device Datasheet 683828 | 2022.02.14

Thankyou.

  • FvM's avatar
    FvM
    Icon for Super Contributor rankSuper Contributor
    1 year ago
    Yes. I was quoting input voltage spec of Cyclone 10 GX datasheet.