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MSP430F5324: Crossing between MSP430F5324/6/8

Kevin McCoy
Prodigy 50 points
Part Number: MSP430F5324
Other Parts Discussed in Thread: MSP430F5326, MSP430F5328

I have qualified the MSP430F5324 (6k RAM, 64k Flash) device in my design. I would like to add the larger MSP430F5326 (8k RAM, 96k Flash) and MSP430F5328 (10k RAM, 128k Flash) as alternate parts to use in my production build in case of part unavailability, but I want to know that there are absolutely no other differences in the devices than the RAM and Flash size differences. The errata lists for the 3 part numbers are identical for all silicon revisions, so I suspect that they are in face identical silicon. Is this in fact the case? I have used other TI devices that were labeled differently, but were in fact the same part, only the more expensive part had additional features qualified and tested.

  • 0
    TI__Guru 56685 points

    Hello Kevin,

    For devices that share the same datasheet such as the MSP430F5324, MSP430F5326, and MSP430F5328 devices, the differences between these devices are outlined within the Device Comparison Table in the datasheet. This table outlines the notable differences between the devices which are typically memory size, number of channels/instances of peripherals, packages available, or even if certain peripherals are present. All parts are designed and tested to make sure they meet or exceed the specifications outlined in the datasheet and the user guide. Exceptions to this are of course documented in the errata text.

  • 0 in reply to Jace H
    Prodigy 50 points
    Thank you for your response! I had previously checked the Device Comparison Table in the datasheet, and was looking for a more positive statement that there are absolutely no other differences besides the additional RAM and Flash memory sectors in the 5326 and 5328. If I knew that, in fact, they are the exact same silicon (except perhaps for a disabling of the extra memory sectors for the lower memory devices) then I could be fairly well assured that there wouldn't be any subtle issues that might crop up when substituting a 5326 or 5238 in place of the 5324 that we are using. Is there anything more definite you can say on this matter?

    Regards,

    Kevin
  • 0 in reply to Kevin McCoy
    TI__Guru 56685 points
    Hello Kevin,

    My previous response contains all currently available information.
  • 0 in reply to Kevin McCoy
    Guru 265180 points
    For devices that have a TLV peripheral discovery descriptor, any software-visible differences show up there.

    As shown in table 6-58 of the datasheet, there are no differences (except for the memory size).

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