Does Altera Max V CPLD provides isolation when it is off?

Question

Does Altera Max V CPLD provides isolation when it is powered off?
Because we have IOs connected to a different voltage domain (say 3.3V_Ext) and CPLD is powered by different voltage domain (3.3V_Int). 3.3V_ext will be powered first, so we wanted to ensure that there is no back voltage on CPLD when it is not powered ON yet.

Regards,Seshu

amint_intel · Answer

Hello Seshu,

Hope you are doing well.  Max V CPLD do not provide isolation when it is turned off. You can refer to more information about your device from this link: https://www.intel.cn/content/dam/www/programmable/us/en/pdfs/literature/hb/max-v/max5_handbook.pdf

Thank you.

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Does Altera Max V CPLD provides isolation when it is off?

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