I have been using the ST brand M27C256B integrated chip memory (as shown in the picture). I heard that it has been discontinued. Is there a replacement for it or another alternative brand! I am looking forward to your reply!

[gting]

[Pierre P.]

Dear Customer,

Thanks for your inquiry.

The EPROM available from ST is not re-designed with sharper technologies, as the market is mostly using Flash memories, today. 

We therefore cannot offer you a direct solution for a drop in replacement of your part.

Thanks for thinking ST!

EEPROM Support Team

[After Forever]

Search "M27C256B" in this document's cross-reference tables to find solutions from other vendors.

https://www.mouser.com/catalog/supplier/library/pdf/STEPROMOTPUV.pdf