S32K IO Voltage Domain

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S32K IO Voltage Domain

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Sreelakshmi
Contributor I

Dear Team,

We have two Voltage Domains for IOs in S32 MCU (VDD_HV_A and VDD_HV_B).

In my design VDD_HV_A and VDD_HV_B both are connected to 3.3V supply nets +3V3_VDD_HV_A and +3V3_VDD_HV_B. 

+3V3_VDD_HV_A and +3V3_VDD_HV_B is generated from two different Bucks of a PMIC. They are two different 3.3V Power Rails.

My query is "For an IO in VDD_HV_B voltage domain , can we use pullup to +3V3_VDD_HV_A supply".

Will this create any issues in MCU functionality?

Regards

Sreelakshmi A

 

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