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Original question:

TMS320VC5502: Reading date code

UC3843: Power management forum

Vraj Talati
Prodigy 110 points
Part Number: UC3843

My customer has bought part#UC3843N few time back on date code : 1849M , the part marking is different on 2 similar parts it is 02A63VM & 8C3A33LM .


Please decode the part marking. 

  • 0
    TI__Intellectual 2640 points

    Hi Vraj! 

    Thanks for reaching out! These codes (02A63VM & 8C3A33LM) are Lot Trace Codes (LTC) for each chip. They help TI internally trace these parts back to when and where they were manufactured in case there are part failures and/or returns. Both parts should perform identically. 

    Thank you again for getting in touch, I hope this information helps! 

    Aidan Davidson