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AR# 7034

Virtex: Is it possible to remove Vccint while applying Vcco?

Description

Is it possible to remove Vccint while applying Vcco?

Solution

Yes, but with one caveat. 5.0V signals should not be supplied to the device for an extended period of time with VCCint un-powered (24 hours per year), or the lifetime will significantly decrease.

The ability to apply either one at a particular instant but not the other is supported to avoid issues with power sequencing; however, doing this over extended periods may affect the reliability of the device.

AR# 7034
Date Created 08/21/2007
Last Updated 12/15/2012
Status Active
Type General Article