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Differences between F5438A and BT5190?

zeke3390
Prodigy 180 points

I stumbled across the BT5190 and thought I found a gem - an MSP430 that could run at 64MHz. At least that's what the product page seems to say.

 

I just finished testing out my samples of the BT5190 and low and behold, the DeviceID is the same as the F5438A. That means that this device can't run at 64MHz. Only 32MHz maximum.

What's so special about  the BT5190 when the F5438A is already here?

Can the BT5190 run at 64MHz or not?

 

Can anyone shed some light on this?

Thanks!

  • 0
    Expert 2870 points

    I guess, the 64MHz are just a typo.  See the actual device data sheet slas703.

    Hardy

  • 0
    TI__Genius 9990 points

    That is correct. 64MHz is a typo and will be corrected soon, thank you for bringing it to our attention. As you mentioned, the BT5190 is practically identical to F5438A. The only  difference is that the BT5190  is licensed to be used with the Bluetooth stack provided by Mindtree with a few things on the silicon. You can use a BT5190 as if it were F5438A.

     

    Gustavo

  • 0
    Guru 227245 points

    The maximum CPU core frequency is 25MHz, the maximum crystal frequency is 32MHz (but then to be used with a divider for clockign the core).
    The internal digitally controlled oscillator is able to produce even higher frequencies (up to and above 64MHz), but needs to be used with a divider too in that range. (It is still useful as a high DCO frequency with a divider reduces clock jitter)

    The BT5190 is almost identical to the 5438A, except for some minor differences which are checked in the BT stack software (hardware dongle for the license).
    For your own code, there is no difference..

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