topic Unable To Decipher 2 Device's Date Codes. in Kinetis Microcontrollers https://community.nxp.com/t5/Kinetis-Microcontrollers/Unable-To-Decipher-2-Device-s-Date-Codes/m-p/2163808#M67863 <P>Device Marking "XNNWMU" and "XNNXJH" should be the date code, but I can't decipher it to year and work week.&nbsp;</P> <P>Manufacturer Part # - MK20DX128VLF5&nbsp;</P> <P>Note: Images with marking where redacted.</P> <P> </P> <P> </P> Thu, 04 Sep 2025 21:56:16 GMT crousnas 2025-09-04T21:56:16Z Unable To Decipher 2 Device's Date Codes. https://community.nxp.com/t5/Kinetis-Microcontrollers/Unable-To-Decipher-2-Device-s-Date-Codes/m-p/2163808#M67863 <P>Device Marking "XNNWMU" and "XNNXJH" should be the date code, but I can't decipher it to year and work week.&nbsp;</P> <P>Manufacturer Part # - MK20DX128VLF5&nbsp;</P> <P>Note: Images with marking where redacted.</P> <P> </P> <P> </P> Thu, 04 Sep 2025 21:56:16 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/Unable-To-Decipher-2-Device-s-Date-Codes/m-p/2163808#M67863 crousnas 2025-09-04T21:56:16Z Re: Unable To Decipher 2 Device's Date Codes. https://community.nxp.com/t5/Kinetis-Microcontrollers/Unable-To-Decipher-2-Device-s-Date-Codes/m-p/2163925#M67864 <P>Hi&nbsp;<a href="https://community.nxp.com/t5/user/viewprofilepage/user-id/254452">@crousnas</a>.,</P> <P>For marking information, please contact your authorized NXP distributor.</P> <P>Best Regards,<BR />Pablo</P> Thu, 04 Sep 2025 21:57:32 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/Unable-To-Decipher-2-Device-s-Date-Codes/m-p/2163925#M67864 Pablo_Ramos 2025-09-04T21:57:32Z