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DRA821U: Is Micron 2 die and 4 die LPDDR in same configuration?

Rich Chen
Expert 4160 points
Part Number: DRA821U
Other Parts Discussed in Thread: DRA821

Tool/software:

Dear Sir, 

My customer use a Micron LPDDR4 on their own board and I found the difference is only 2 dies and 4 dies. 

For the configuration in DDRSS, are these two LPDDR4 using same configuration or any difference point need to set?

MT53E1G32D2FW-046

to replace LPDDR4 on DRA821 EVM

MT53D1024M32D4DT-046

BR, Rich

  • 0
    TI__Mastermind 38340 points

    Hi Rich,

    If there is no difference in number of ranks (i.e, both parts use 2 ranks), then the same settings should work as they are both 32-bit wide and have same total density. As they are different parts, it might be that different IO settings may be needed, but it is also very possible / likely the same IO settings should be sufficient. They do seem to indicate different operating temperature ranges, as a side note.

    Regards,
    Kevin

  • 0 in reply to Kevin S
    TI__Expert 4160 points

    Kevin, 

    Thanks for the confirmation, we have made the new part worked with the same configuration on EVM. 

    These two part share the same configuration without problem. 

    BR, Rich