TMS570LC4357: Hercules MCU TMS570LC4357 design queries

Hugo Denham-Wells said:

 What is the supported life of the TMS570LC4357, are there any plans for NRND or obsolescence of this chip?

The TMS570 devices have been in the market for several years, and Cortex-R4/R5 are very mature architecture with SoC integration features for use in deeply embedded real-time and safety-critical systems. We don't have plan to EOL any of TMS570 parts.

TI policies for standard product longevity

TI standard products are not eligible for obsolescence if any of these three conditions exist:

• The product has had any sales within the last five years (seven years for automotive or high-reliability products).
• The product can be manufactured and has been in production for less than 10 years.
• The product has any current customer demand.

https://www.ti.com/support-quality/quality-policies-procedures/product-life-cycle.html

Hugo Denham-Wells said:

Does this clause apply to the TMS570LC4357 chip, and if so what is the procedure to execute such an agreement? 

Yes, I think this clause (FSA Class 3 device) also applies to Hercules devices. 

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.

Hugo Denham-Wells said:

Can you please share TI's MISRA compliance policy document for HalCoGen and safety software products (as mentioned here)

I don't have this policy document.

Yes, I think this clause (FSA Class 3 device) also applies to Hercules devices. 

Thank you QJ. How do we execute this agreement? 

After checking with team members, we don't have the policy document mentioned in your query.

Hugo Denham-Wells said:

How do we execute this agreement? 

I am sorry I don't know the answer. 

Can you refer my query to someone who does? We are interested in using your product in a Class III medical device but we need to know what's involved. 

Let me check with marketing team to see if they know the procedure.

Hi Hugo,

My apologies for my delayed response, I haven't found the procedure to execute the agreement of using TMS570 in FDA Class III medical devices.

Excellent, thank you for the update QJ. Can you provide a contact for the marketing or legal team please? 

Let's discuss off-line.