Is there a recommended LPDDR2 for i.MX6DQ PoP package?

[satoshishimoda]

Hi community,

Our partner consider using i.MX6DQ PoP.

They want to know whether there is a Freescale recommended DDR to use i.MX6DQ PoP.

According to the following article, PoP package was designed with Micron, so we guess Micron's LPDDR2 chip is recommended, right?

The mobile package just got smaller | Embedded Beat for Design Engineers

If it is correct, would you let me know the part number of recommended chip?

And would you let me know can we use a LPDDR2 chip provided by other than Micron (Samsun, SK Hynix, etc..) also?

Best Regards,

Satoshi Shimoda

[igorpadykov · Accepted solution]

Hi Satoshi

FSL used MT42L128M64D2LL-18WT, other LPDDR2 chips also can be used,

as referenced by link "The mobile...", TechNexion and VISE boards.

Best regards

igor

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[satoshishimoda]

Hi Igor,

I checked MT42L128M64D2LL-18WT ball map, but almost DQ pins of both channels (channel A & B) and DQS & DM pins of channel A are not corresponded with i.MX6DQ PoP ball map.

Was there no problem?

You know byte swapping and bit swapping are not allowed for LPDDR2 by JEDEC standard, so I doubt the misprint of ball map in the datasheet if there was no problem.

Best Regards,

Satoshi Shimoda