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Other than memory size, Are there any other differences between the MSP430F147, MSP430F148 and MSP430F149?

Epic Vancouver
Intellectual 885 points
Other Parts Discussed in Thread: MSP430F147, MSP430F148

We're qualifying a larger memory microcontroller for our product (MSP430F148, we currently use MSP430F147), and I've got a few questions:

  • Are there any differences across the '147, '148 and '149 family other than memory size? (die size, etc). I notice no differences in datasheet specs other than memory size.
  • Does the added memroy move anything around on the die?
  • We use PWM outputs as DACs (calbirated during production), are there any IO buffer changes that could cause problems?
  • Is the internal temperature sensor moved around, near a hotter part of the chip, or otherwise different?
  • How much different is the current draw? The spec looks the same for all memory sizes.
  • 0
    TI__Expert 4420 points

    other than the memory size, the devices are exactly the same - same specs, same IO bugger, same temp sensor location, same current, etc.  none of the modules were moved around on the die either.  if anything was moved, there would be a good chance that the specs would change too.

    you shouldn't have any issues changing from a 147 to a 148 or vice versa.

  • 0 in reply to adrian
    Prodigy 10 points

    Thanks Adrian.

    Are the parts truly identical in terms of memory on die as well? For example, are the 147 and 148 just a 149 with some memory disabled? If they are truly the same but with memory disabled, that would increase our confidence that there would be no problems when switching versions.

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