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GWang31's avatar
GWang31
Icon for New Contributor rankNew Contributor
7 years ago

Risk of one pin of 3.0 VCCIO bank connect to 5V logic?

Hello, I wrongly connect an I/O pin which is in 3.0V bank to 5V logic. I wonder will the damage(if happens) only affect to this specific pin or the whole FPGA? Will it help if I set this pin to hig...
AnandRaj_S_Intel's avatar
AnandRaj_S_Intel
Icon for Regular Contributor rankRegular Contributor
7 years ago

Hi,

Check your device Data Sheet for Absolute Maximum Ratings.

  • If we Operate a device in Absolute Maximum Ratings may cause permanent damage to the device.
  • The device output pins do not meet the I/O standard specifications if the VCCIO level is out of the recommended operating range for the I/O standard.
  • If high-z may impact on power-on-reset.

Let me know if this has helped resolve the issue you are facing or if you need any further assistance.

Best Regards,

Anand

  • GWang31's avatar
    GWang31
    Icon for New Contributor rankNew Contributor
    7 years ago

    Thanks Anand. The maxinum ratings on datasheet of cyclone IV is 4.2V, now the IO pin I connect to 5V logic output by mistake. I know there may be damage to the device. I wonder what the "damage to the device" means. Does it mean the damage to the pin or the whole FPGA? Will the FPGA die?