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MSP430F6736: How to find MSP430f parts which best match my application

Rich Mullen
Intellectual 325 points
Part Number: MSP430F6736
Other Parts Discussed in Thread: , EVM430-I2040S, EVM430-F6779, EVM430-F6736, TIDM-AUX-MODULE

I'm starting a design with the MSP430F6736. It looks like a great match for what is basically going to be a low power data acquisition system. The 6736 has a lot of literature that seems to indicate the chip lends itself best to sensing for smart meters. Even the EVM is for this application. I would like to look through TI's catalog of MSP430f devices to see if a different part matched my application more closely. Also, I'd like to find if the 6736 is one of the latest parts or if a new part number is soon going to supersede it.

Other than my concern that it is not the latest or the best suited part, it looks to be a fantastic processor.

Can anyone point me to a spot on the TI website where I can find the latest MSP430Fxxxx information?

Thanks!

Rich

  • 0
    Guru 34443 points

    TI totally switched to FRAM family and MSP432. I am afraid that 5xx/6xx flash familly is finished story, and you will not find any news there. For device selection you can check slab034 MSP Low-Power Microcontrollers.

  • 0 in reply to zrno soli
    Intellectual 325 points
    Hard to agree because slab034ad mentions the MSP430F67xx family highly. Especially for smart meters. Also hard (impossible?) to find the 24 bit A/D converter in the FRAM series. Therein lies my problem. Trying to get a handle on what TI offers, and will continue to offer, seems to no longer be straightforward.
  • 0 in reply to Rich Mullen
    Guru 34443 points
    MSP430F6736 was listed as new device in slab034aa, from 2015. From that time you will not find any new MSP430F5xx/6xx flash family member, only FRAM and MSP432 devices. That was my point, about 5xx/6xx finished story.
  • 0 in reply to zrno soli
    Intellectual 325 points

    So what you're saying by finished story is that the MSP430F6736 is end-of-life?

    How about the original question: Can anyone point me to a spot on the TI website where I can find the latest MSP430Fxxxx information?

    Or, perhaps I should ask about the latest MSP43xxxx information.

    Getting nervous here about continuing to use the TI line.

  • 0 in reply to Rich Mullen
    Guru 34443 points
    No, it is not end-of-life. It will be produced at least for next 10 years, but this info you can get officially by TI, not by me.
  • 0 in reply to Rich Mullen
    TI__Mastermind 49692 points
    Hello Rich,

    Thanks for your interest in the MSP430F6736, although I would recommend the A-version of this device, the MSP430F6736A. I don't expect this device to go end-of-life any time soon. We just invested over a years worth of effort into creating the new Energy Measurement Design Center (EMDC) and Software Library for the MSP430F67xx(1)(A) and MSP430i20xx devices. While the FRAM parts are newer, they don't offer an integrated 24-bit Sigma Delta ADC yet, such as the devices from these two Flash families.

    I hope this helps calm your fears. I work with these devices daily and am engaged with many customers using them in new and existing designs.

    Regards,

    James

    MSP Customer Applications
  • 0
    TI__Mastermind 49692 points

    Rich Mullen said:
    Can anyone point me to a spot on the TI website where I can find the latest MSP430Fxxxx information?

    To answer your initial question, you can find the latest information about the MSP430 Flash devices by going to the link below and clicking "Other MSP430 MCUs".

    The next page gives an overview of the different focus areas for the MSP430 Flash devices, including Metrology and Monitoring. Below is just a snippet, so feel free to scroll further down that page.

    Regards,

    James

    MSP Customer Applications

  • 0
    TI__Mastermind 49692 points

    Rich Mullen said:
    I'm starting a design with the MSP430F6736. It looks like a great match for what is basically going to be a low power data acquisition system. The 6736 has a lot of literature that seems to indicate the chip lends itself best to sensing for smart meters. Even the EVM is for this application. I would like to look through TI's catalog of MSP430f devices to see if a different part matched my application more closely.

    Since it sounds like your design will be similar to an smart/energy meter or power monitor, how many phases are you planning to measure? The EVM430-F6736 can support 3 SD24 ADC channels, which means you can measure voltage, line current, and (optionally) neutral current. We also offer the MSP430i20xx family which can support up to 4 SD24 ADC channels. These devices are cheaper than the MSP430F6736A, but they are not as configurable, slower, and don't support LCD, etc. However, if your application doesn't need all those things, it's a great device. We offer the EVM430-i2040S board, which is a shunt-based design. If you need 3-phase support, take a look at the EVM430-F6779.

    The new Energy Measurement Design Center (EMDC) and Software Library supports all of these devices and rapidly accelerates development. If you have the necessary hardware and EVM, you can start measuring voltage, current, power, energy, etc. in less than 5 minutes.

    I hope this helps!

    Regards,

    James

    MSP Customer Applications

  • 0 in reply to James Evans
    Intellectual 325 points
    Hi James, thanks for all the information.
    My design is actually not an energy monitor, it just has a very good fit for 2, SD24 channels, the RTC with a separate power source, low power, and the LCD controller. Since all of the literature I've seen so far relates the MSP430F6736 to energy monitors, I was concerned that I might be missing something and wanted to get more information on TI's micro controller product line(s) to see if they had something that was a better fit. Looks like the MSP430F6736A is going to work perfect for the new design. Thanks again!
    -Rich
  • 0 in reply to Rich Mullen
    TI__Mastermind 49692 points

    Excellent! Thanks for the additional details. For the RTC/AUX stuff, take a look at the Battery Management and Auxiliary Power Supply Options for E-Meters (TIDM-AUX-MODULE) TI Design - it may say "E-Meters" in the title, but it's still a great reference for configuring these modules properly.

    Also, I'd recommend starting with the MSP430F6736A for your development, but as you get closer to production/custom boards/etc., you can move to a different device in the same family (e.g. you don't need so much Flash and RAM, etc.). Here's a table out of the datasheet for the MSP430F6736A comparing all the parts and key features in the same family.

    Regards,

    James

    MSP Customer Applications

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