TMS470MF03107: Security Key Lock Issue with SM470R1B1MHKPS Chip

Anh Tran

Part Number: TMS470MF03107

Tool/software:

Hi,

We have an SM470R1B1MHKPS with date code 1930A that cannot be programmed due to a security key lock. I noticed that this happen when voltage pull lower while programming, The only step that we have been taken is to replace the IC.

Are there any methods to reset the chip and reprogram it without the knowing the security key?

over 1 year ago

0 Charles Tsai over 1 year ago

TI__Guru**** 191486 points

Hi,

Can you please provide the percentage of failures and total number of failures? Please also provide your full contact information so we can have someone from TI reach out to you.

0 Anh Tran over 1 year ago

Prodigy 10 points

Hi Charles,

It's around 10% for one assembly. We have this IC on multiple assemblies with similar failure percentage (around 8% to 10%). My name is Anh Tran, please contact me through atran@verigon.com. Thank you

0 Charles Tsai over 1 year ago in reply to Anh Tran

TI__Guru**** 191486 points

Hi Ang,

Thanks for the information. We will have someone contact you to address the matter.

0 Charles Tsai over 1 year ago in reply to Charles Tsai

TI__Guru**** 191486 points

Hi Ang,

I will close the thread here as the matter is being handled via email.

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TMS470MF03107: Security Key Lock Issue with SM470R1B1MHKPS Chip