Because of the holidays, TI E2E™ design support forum responses will be delayed from Dec. 25 through Jan. 2. Thank you for your patience.

  • State Resolved
  • Replies 5 replies
  • Subscribers 30 subscribers
  • Views 140 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

RM48L952: Comparison Between RM48L952 and TMS570LC for High-Critical Class C Medical Device Using SafeRTOS

Electronics IDC
Prodigy 60 points
Part Number: RM48L952
Other Parts Discussed in Thread: TMS570LC4357, HALCOGEN

Tool/software:

Hi there,

I hope this message finds you well.

I am currently in the process of selecting a microcontroller for a safety critical Class C medical device that we are developing, which will be using SafeRTOS. We are particularly interested in comparing the RM48L952 and the TMS570LC microcontroller families for this application.

Given the stringent requirements of Class C medical devices, we need to ensure that the selected microcontroller meets all necessary safety and regulatory standards. Specifically, we are looking for insights on the following aspects:

  1. Safety Certification Compliance:

    How do the RM48L952 and TMS570LC4357 compare in terms of compliance with medical device standards such as IEC 60601?

    Are there any differences in the available safety documentation and certification support between these two families?

  2. Safety Features:

    Both microcontrollers provide critical safety features such as dual-core lockstep, ECC, BIST, and MPU. Are there any significant differences in the implementation or performance of these features between the RM48L952 and TMS570LC4357?

  3. Integration with SafeRTOS:

    Can you provide any specific details on the integration of SafeRTOS with each of these microcontrollers?

    Are there any advantages or challenges specific to either the RM48L952 or TMS570LC in this context?

  4. Development Tools and Support:

    We are aware of the tools like Code Composer Studio, HALCoGen, and SafeTI diagnostic libraries. Are there any additional tools or resources provided for either microcontroller that would facilitate development for a Class C medical device?

  5. Performance and Reliability:

    How do these microcontrollers compare in terms of performance (e.g., clock speed, memory capacity) and reliability for high-critical applications?

  6. Community and Technical Support:

    Is there a difference in the level of community support and technical assistance available for the RM48L952 versus the TMS570LC, particularly for medical device development?

  7. Datasheet information: RM48L952 are widely used for medical applications and TMS570LC are widely used for industrials. What's your thoughts?

We aim to make an informed decision that ensures the highest level of safety and reliability for our medical device. Your detailed comparison and any additional insights you can provide would be greatly appreciated.

Thank you for your assistance.

Best regards,

Hritrik Patnaik,

Electronics Engineer,

Industrial Design Consultancy Limited

  • 0
    TI__Guru 58190 points

    Hi Hritrik Patnaik,

    The Hercules MCUs are not developed compliant to the IEC 60601 series of standards for medical devices. These products target the IEC 61508 and ISO 26262 standards, which introduce functional safety requirements at the component level for compliant hardware. Because IEC 61508 and IEC 60601 have many core concepts in common, use of an IEC 61508 compliant component may help reduce development effort for IEC 60601 system developers.

    RM48 will complaint to IEC 61508

    Whereas TMS570LC will complaint to both ISO 26262 and IEC 61508.

    --
    Thanks & regards,
    Jagadish.

  • 0 in reply to jagadish gundavarapu
    Prodigy 60 points

    Hi Jagadish,

    I would like to know more about the RM48L95X vs TMS570LC21XX in compliance with 62304.

    I found from google that:

    "The RM48L952 is designed with the medical industry in mind, so it has a stronger focus on supporting medical device certifications like IEC 62304. Its documentation provides direct guidance on how to implement the software development lifecycle for medical applications, making it easier to demonstrate compliance.

    While the TMS570LC2124 is robust and can certainly be used for medical applications, it is primarily targeted at industrial applications (e.g., automotive, factory automation). The safety documentation is more focused on industrial standards such as  IEC 61508 rather than medical-specific standards like IEC 62304."

     What's your thoughts on this? What would you suggest to go with when a Class C safety critical medical device would be using any of the described part?

    Thanks, 

    Hritrik

  • 0 in reply to Electronics IDC
    TI__Guru 58190 points

    Hi Hritrik,

    There really is no specific reason why a TMS570 could not be used in a medical application provided it supports the application requirements. Both the RM and TMS570 products are designed for functional safety and both will or are certified to IEC61508 which will aid in acceptance by the FDA and/or UL certifications. The primary difference between the devices are the peripheral sets, the performance levels, and temperature grade. Also, the RM devices are natively little endien devices where the TMS570 devices are big endien. Also, the TMS570 devices are additional certified/planned to be certified to ISO26262 which is the automotive standard for functional safety.

    As per my knowledge both of them can be used, however RM series is mainly designed for industrial applications so you can use the RM48L95x for your application.

    --
    Thanks & regards,
    Jagadish.

  • 0 in reply to jagadish gundavarapu
    Prodigy 60 points

    Hi Jagadish,

    Appreciate your response. Is there any difference in the documentation of RM and TMS series that impacts their use in IEC 62304-compliant medical devices? If yes, please specify the differences.

    Thanks, 

    Hritrik 

  • +1 in reply to Electronics IDC
    TI__Guru 58190 points

    Hi Hritik,

    Electronics IDC said:
    Appreciate your response. Is there any difference in the documentation of RM and TMS series that impacts their use in IEC 62304-compliant medical devices?

    From IEC 62304 point of view, no there is no difference.

    --
    Thanks & regards,
    Jagadish.