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TMS320F28069: Need to replace the TMS320F28069UPZT

Josel Go
Expert 7235 points

Part Number: TMS320F28069

Hi Experts,

Good day.

The reason for my message is because I need to replace the TMS320F28069UPZT microcontroller since there is not enough stock, I want to use a direct replacement without having to modify the code or the footprint, so I was thinking of replacing it with the model TMS320F28065PZT or the TMS320F28062PZPS, as for the TMS320F28065PZT, if the code does not occupy all the memory space, is it possible to use it as a direct replacement? In the second case, I understand that it does not have VCU and CLA, does this make them no longer compatible?

Keep safe.


Regards,

Josel

  • 0
    TI__Guru* 95315 points

    Josel, 

        Here is a table that shows you the differences between these parts:

    28069U 28065 28062 Comments
    Flash 128kW 64kW 64kW See #1 below
    RAM 50kW 50kW 26kW See #2 below
    VCU Yes Yes No See #3 below
    CLA Yes Yes No See #4 below
    USB Yes No No See #5 below
    1. If the code in Flash indeed occupies 64kW or less, you can use 28065 or 28062. 
    2. 28062 has only 26kW of RAM and is likely unsuitable. However, if the application indeed uses only 26kW (or less) of RAM, 28062 can also be used. The linker command file may need to be modified extensively to make this work.
    3. If the code does not use the VCU, 28062 can be used.
    4. If the code does not use the CLA, 28062 can be used.
    5. Only parts with the "U" suffix have the USB. If the USB on the 28069U is used by the application, neither 28065 nor 28062 can be used.