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Newbie
Newbie
234 Views
Registered: ‎12-18-2019

Affects of Overshoot on Spartan 6 and associated reliability

Due to an oversight, we designed a board with a driver that creates an oveshoot into one of the Spartan 6 I/O pins; typical overshoot is 4.6V with a duration of 4%.  The questions are multiple as we have observed no degradation in the performance of the FPGA over months and an unlimited number of cycles (greater than 10MHz rate) - is there a reliability report that details what damage may occur to the pin (only a single I/O in a somewhat limited I/O application).

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Mentor
Mentor
221 Views
Registered: ‎06-16-2013

Re: Affects of Overshoot on Spartan 6 and associated reliability

Hi @cdehmelt 

 

I'm sure that it's an absolute maximum rating issue.

You must stick to the rules under proper condition.

 

Refer page 2 of the following URL.

 

https://www.xilinx.com/support/documentation/data_sheets/ds162.pdf

 

Best regards,

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Newbie
Newbie
169 Views
Registered: ‎12-18-2019

Re: Affects of Overshoot on Spartan 6 and associated reliability

Understand.

However, that does not answer the questions about what damage occurs  and how much exposure to an overshoot to initiate the damage (and essentially, how where these limits determined).

Thanks

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