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TM4C129ENCPDT: TM4C129ENCPDT-MSP432E401Y differences: Are there any?

Frank-Christian Kruegel
Prodigy 60 points
Part Number: TM4C129ENCPDT
Other Parts Discussed in Thread: MSP432E401Y,

What are the differences between TM4C129ENCPDT and MSP432E401Y? Both share the same package, the same pinout, the same core,...

Why are there two seperate, almost(?) identical products?

Regards

Frank

  • 0
    Guru 92251 points

    Frank-Christian Kruegel said:
    What are the differences between TM4C129ENCPDT and MSP432E401Y?

    I agree the two devices look the same.

    The Parametrics for the MSP432E401Y list "Active Power (uA/MHz)" and "Standby Current (uA)", whereas the Parametrics for the TM4C129ENCPDT don't. Wondered if the MSP432E401Y was using a different process to achieve lower power consumption. However, manually comparing the Current Consumption tables in the datasheets for TM4C129ENCPDT and MSP432E401Y can't see any differences.

    Comparing the device errata for the TM4C129ENCPDT and MSP432E401Y shows that some errata which are present in the TM4C129ENCPDT revision 3 (e.g. ADC#09 "First two ADC Samples From the Internal Temperature Sensor Must be Ignored") are not reported as present in the MSP432E401Y.

    Therefore, suspect that the MSP432E401Y is a "rebranded" TM4C129ENCPDT with some errata fixed.

  • 0
    Genius 3850 points

    looks like TI took two approaches to this family:

    1) upgrade the MSP430's core and keep the peripheral: that gives us the MSP432P chips;

    2) lower the TM4 core and keep the TM/LM peripheral: that gives us the MSP432E chips.

    the first approach provides an easier migration path for the MSP430 users and the 2nd approach provides a low-power migration path for the TM/LM users.

    different ways of getting to the same end-use market, but for different customers.

  • 0
    TI__Guru**** 244380 points
    Hello Frank,

    The MSP432E4x devices are a small subset of the TM4C129x devices which is a part of the SimpleLink family of MCU and supports the features that SimpleLink SDK provides. So in theory you would see the same features for both the TM4C129ENCPDT and MSP432E401Y devices.