how to use DDR3L with STM32mp257Fak3

[abhineetranjan]

Hello 
I am planning to use STM32mp257Fak3 with DDR3L (16bit and 32 bit saperately),
can you suggest some DDR part no and it's sonnection.

[Pwxn]

Hello @abhineetranjan 

You can refer to this 2 application notes:

https://www.st.com/resource/en/application_note/an5723-guidelines-for-ddr-configuration-on-stm32mp2-mpus-stmicroelectronics.pdf

https://www.st.com/resource/en/application_note/an5724-guidelines-for-ddr-memory-routing-on-stm32mp2-mpus-stmicroelectronics.pdf

ST follow the JEDEC standards so you should be able to choose any part that are following the same.

"DDR3L with a data rate of 2133 MT/s, voltage at 1.35 V. More information on DDR3L SDRAM can be found
on the JEDEC DDR3 SDRAM Standard JESD79-3F." - AN5724 2 Design interface constraints

I hope this will help you.

Regards,

[abhineetranjan]

Thank you for your response,
can I use 2 , 8bit DDR3L with STM32MP257FAL3 (as this is not mentioned in the pdf you provided), to achieve 1GByte Memory density.

Best Regards
Abhineet Ranjan

[abhineetranjan]

Block Diagram for reference....