If the NVCC_xxx supply can be combined with VDD_HIGH_IN and VDD_SNVS_IN in IMX6ULL designs

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If the NVCC_xxx supply can be combined with VDD_HIGH_IN and VDD_SNVS_IN in IMX6ULL designs

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vadimaleynikov
Contributor III

Does the NVCC_xxx supply can be combined with VDD_HIGH_IN and VDD_SNVS_IN in IMX6ULL design?

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igorpadykov
NXP Employee
NXP Employee

Hi Vadim

this is not allowed as datasheet sect.4.2.1 Power-Up Sequence requires 

VDD_SNVS_IN supply to be turned on before any other power supply.

i.MX 6ULL Applications Processors for Consumer Products

Best regards
igor
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Rodrigue
NXP Employee
NXP Employee

HI Igor,

Is there any reason why it differs from the i.MX6UL where both supplies can be tight together?

br,

Rod

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igorpadykov
NXP Employee
NXP Employee

Hi Rod

 

>Is there any reason why it differs from the i.MX6UL where both supplies can be tight together?

I thnk it has similar design as i.MX6UL and the same power-up sequence.

Best regards
igor
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Rodrigue
NXP Employee
NXP Employee

Then which one is right? 6UL or 6ULL?

And then we have to correct the Datasheet

Br,

Rod

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igorpadykov
NXP Employee
NXP Employee

Hi Rod

I think both are right.

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Best regards
igor

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