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Anush's avatar
Anush
Icon for New Contributor rankNew Contributor
11 months ago

Cyclone 10GX IO Voltage specification

Iam planning to use Cyclone 10 FPGA 10CX105YU484I5G. In the Datasheet it states the absolute maximum rating of VCCIO 4.10V.

But in the operating conditions it is mentioned as max 3.15V.

Please can I get clarification if I can connect 3.3V to VCCIO so I can interface 3.3V IO directly without any additional Level translators.

Fpga Devkit

3 Replies

  • FvM's avatar
    FvM
    Icon for Super Contributor rankSuper Contributor
    11 months ago
    Hi,
    you need to understand the difference between absolute maximum ratings and recommended operation conditions. Correct operation isn't guaranteed beyond recommended operation conditions, you can't use higher VCCIO than 3 V with Cyclone 10 GX. Inputs with 3V IO- standard can however accept up to 3.3V logic voltage.
  • AqidAyman_Altera's avatar
    AqidAyman_Altera
    Icon for Regular Contributor rankRegular Contributor
    10 months ago

    Thank you @FvM for the answer given.


    I wish to follow up, is there any more clarification needed on this question?


  • AqidAyman_Altera's avatar
    AqidAyman_Altera
    Icon for Regular Contributor rankRegular Contributor
    10 months ago

    I hope the previous response was sufficient to help you proceed. As we do not receive any response from you on the previous question/reply/answer that we have provided. Please login to ‘https://supporttickets.intel.com/s/?language=en_US’, view details of the desire request, and post a feed/response within the next 15 days to allow me to continue to support you. After 15 days, this thread will be transitioned to community support. The community users will be able to help you on your follow-up questions.