Should we design with DDR package skew in mind ?

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Should we design with DDR package skew in mind ?

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ko-hey
Senior Contributor II

Hi all,

 

Let me confirm about designing LPDDR4.

Is it necessary to design considering the package wiring length of LPDDR4 memory ?

 

Ko-hey

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Yuri
NXP TechSupport
NXP TechSupport

@ko-hey 
Hello,

  According to i.MX8M (m/n) Hardware Developer’s Guide(s):
When performing the required delay matching for LPDDR4/DDR4 routing, the bond wires within the
i.MX 8M  package need to be accounted for and included in the match calculation.

 

Regards,
Yuri.

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Yuri
NXP TechSupport
NXP TechSupport

@ko-hey 
Hello,

  According to i.MX8M (m/n) Hardware Developer’s Guide(s):
When performing the required delay matching for LPDDR4/DDR4 routing, the bond wires within the
i.MX 8M  package need to be accounted for and included in the match calculation.

 

Regards,
Yuri.

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ko-hey
Senior Contributor II

@Yuri 

 

Thank you for quick reply.

How about the internal delay of LPDDR4 package ?

Do we need to consider it ?

 

Ko-hey

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Yuri
NXP TechSupport
NXP TechSupport

@ko-hey 
Hello,

  follow LPDDR4 manufacturer recommendations.

Regards,
Yuri

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