Forum Discussion

New Contributor

6 years ago

The Knowledge Base shows that Vcc (0.9V), and Vccp (1.8V) should come up before Vcceram (0.9V), Vccr_gxb (1.8V), and Vcct_gxb (0.95V). This requires splitting the voltages and adding power switches to sequence the voltages. Is this required?

What are the ramifications of not sequencing these power rails? Does it cause configuration issues, functional problems, or long term reliability issues?

JonWay_altera

Frequent Contributor

6 years ago

Thanks @Busy Just to top up some info for @BAdam1 , you may also want to refer to the https://www.intel.com/content/www/us/en/programmable/documentation/vua1487061384661.html#qwj1528888537561

You will need to follow the sequencing, to guarantee the reliability and not to damage the device.

Forum Discussion

The Knowledge Base shows that Vcc (0.9V), and Vccp (1.8V) should come up before Vcceram (0.9V), Vccr_gxb (1.8V), and Vcct_gxb (0.95V). This requires splitting the voltages and adding power switches to sequence the voltages. Is this required?

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