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TMS320F28P550SG: C2000 Device Options for Railway SIL3/SIL4 Applications

B B
Prodigy 85 points

Part Number: TMS320F28P550SG
Other Parts Discussed in Thread: F29H850TU, AM2612

We are currently working on a Railway application that requires compliance with SIL3/SIL4 safety standards.

In earlier designs, the TM4C1294NCPDTT3R device was used. However, for upcoming projects, there are concerns regarding the long-term availability and lifecycle support of this part, particularly with respect to Railway requirements. A discussion has also been initiated on TI E2E to seek clarity on this topic:

https://e2e.ti.com/support/microcontrollers/arm-based-microcontrollers-group/arm-based-microcontrollers/f/arm-based-microcontrollers-forum/1613596/tm4c1294ncpdt-inquiry-on-longevity-and-suitability-of-tm4c1294ncpdtt3r

In parallel, we are evaluating alternative device families in case the TM4C1294NCPDTT3R does not meet longevity or SIL3/SIL4 compliance expectations for new designs. As part of this exercise, we are considering the C2000 series.

Could you please advise on the following:

  1. Which C2000 series devices are suitable for Railway applications requiring SIL3/SIL4 compliance?

  2. Which C2000 family would be recommended for new project designs, considering long-term availability and lifecycle support aligned with Railway application needs?

Your guidance on the above will help us in making an informed platform selection for future designs.

 

  • 0
    TI__Mastermind 19676 points

    Hi,

    B B said:
    Which C2000 series devices are suitable for Railway applications requiring SIL3/SIL4 compliance

    The only device that is SIL3 capable device in c2000 series is F29x device family. Please refer to device datasheet and reference manual available here - https://www.ti.com/product/F29H850TU 

    I am also adding our marketing engineer to assist you further.

    Thanks

  • 0 in reply to Prarthan Bhatt
    Prodigy 85 points

    Hi Pradhan,

    Thank you for the clarification regarding the F29x device family being the only C2000 series identified as SIL3-capable, and for sharing the relevant product link. We also appreciate you looping in the marketing engineer for further assistance.

    To proceed with our internal evaluation and long-term planning for railway applications, we would appreciate clarification on the following additional points, which are critical for our safety and lifecycle assessment:

    1. What is the official launch date / market introduction timeframe of the F29x device family?

    2. What is the expected product longevity and availability commitment for the F29x device family, particularly with respect to long-life railway applications?

    3. Can the TM4C1294NCPDTT3R device also be considered SIL3 / SIL4 capable when used within an appropriate system-level safety architecture?

    4. What was the original launch date of the TM4C1294NCPDTT3R device?

    5. What is the current lifecycle status and expected remaining longevity of the TM4C1294NCPDTT3R device (e.g., active, sustaining, long-term support outlook)?

    In addition, based on the earlier discussions on this topic (including the TI E2E thread), we would also appreciate guidance on:

    1. Whether TI recommends TM4C1294NCPDTT3R for new SIL3/SIL4 railway designs, or only for sustaining existing deployments.

    2. For SIL3/SIL4 railway applications, does TI provide or plan to provide functional safety collateral (such as safety manuals or FMEDA) for TM4C devices comparable to what is available for F29x?

    3. Are there any long-term supply programs, lifecycle guarantees, or last-time-buy policies applicable to either F29x or TM4C families that customers targeting 15–20 year railway lifecycles should be aware of?

    These details will help us align our platform selection with both functional safety requirements and long-term availability expectations typical of railway applications.

    Looking forward to your guidance.

  • 0 in reply to B B
    TI__Prodigy 140 points

    Hello,

    The F29H85x device will be released into this year. Currently this device is in sampling.

    Please refer to the following regarding our product life cycle Product life cycle | Quality policies & procedures | TI.com

    The TM4C1294NCPDTT3R was introduce back in 2014. I would recommend a newer MCU such as the AM2612 data sheet, product information and support | TI.com. This device was released into the market last year and is also SIL-3 rated.

  • 0 in reply to Reinaldo Dos Santos
    Prodigy 85 points

    Hello Reinaldo

    To ensure clarity and alignment with our internal safety assessment and railway lifecycle requirements, we have summarized our questions in the tabular format below.

    We would appreciate your confirmation or correction of the entries, particularly with respect to standalone SIL-3 capability, system-level SIL-3/4 usage, lifecycle expectations, and TI’s recommendation for new railway product development.

    This structured information will help us finalize platform selection and maintain clear traceability for safety and audit reviews.

    For devices not recommended as a primary safety controller, could TI please indicate the intended or recommended role within a SIL-3/4 railway system (e.g., secondary controller, monitoring, non-safety domain)?

    Please let us know if any assumptions in the table require adjustment.

    Thank you for your support.

    MCU / Device Family Standalone SIL-3 capable (Y/N) SIL-3/4 capable at system level (Y/N) Launch / Market introduction year Expected availability horizon (years) TI recommendation for NEW railway product development (Primary safety controller / Secondary / Not recommended) Functional safety collateral available or planned (Safety Manual, FMEDA, failure rate data)
    TM4C1294NCPDTT3R     2014      
    F29H850TU (C2000 F29x) Y Y 2026 (Sampling)      
    AM2612 Y Y 2025      
    Any other TI MCU suitable for SIL-3/4 railway use            

     

  • 0 in reply to B B
    Prodigy 85 points

    Hello 

    • Any update on it?
  • 0 in reply to B B
    TI__Prodigy 140 points

    Hello,

    So at a system level, many of our C2000 devices can be SIL-3 capable, they require external circuitry . I am unable to share collateral via this public forum.

    Please reach out to local Sales Team for information. 

    We will be able to connect with the correct experts and collateral this way.

    For product life-time, I am unable to communicate anything other our public  statement Product life cycle | Quality policies & procedures | TI.com

    It is recommended to use F29H85x, AM261x as these are newer MCUs and have just been released into market. 

    Other devices that may reach SIL-3 at system level are, TMS320F280015, TMS320F28P550, TMS320F28P650.

    Best Regards,

    Reinaldo Dos Santos

  • 0 in reply to Reinaldo Dos Santos
    Prodigy 85 points

    Hi Reinaldo,

    Thank you for your guidance on the forum regarding C2000 devices and SIL-3 system-level capability.

    Would you be able to help guide us to the appropriate internal team or functional safety expert who supports railway / TCAS-type SIL-3 / SIL-4 applications across the C2000 and AM26xx platforms?

    We are fully open to continuing the discussion under NDA and following TI’s preferred engagement process — the intent is simply to ensure the discussion reaches the correct technical group.

    If required, contact details can also be shared via personal message on the forum.

    Thank you for your time and support.

  • 0 in reply to B B
    TI__Prodigy 140 points

    Hello, 

    Please reach out to local Sales team and Field Appliacation Engineer and we will be able to further support.