Need help with recognize ​M27C801 SINGAPORE

[Perets]

Hello, world. I try to find answer how read that code: 2020L. 

Full text on chip are: 

M27C801

-100F1

52987

-2020L

SINGAPORE

That 2020L need read like: WWYXX? Or YWWXX? Thank you for answer. Regards 

 

[mƎALLEm]

Hello @Perets and welcome the the ST community,

That product has been obsolete for years.

To answer your question and I'm not sure that's the week of the fabrication: year: 2000 week: 20.