I am interested in finding a replacement for EPCS4SI8N.

[JBram2]

I was doing some research and wanted to know if the replacement could be EPCQ4ASI8. Also is there part number for individual and reel versions?

[ShafiqY_Intel]

Hi JBram2,

Yes, you're right. The replacement for EPCS4 is EPCQ4A.

You may refer to EPCQ-A device Datasheet for more details:

https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/hb/cfg/cfg_cf52014.pdf

And also, you may refer to Intel® FPGA Configuration Device Migration Guideline for more details in migration the device:

https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/an/an822.pdf

I hope this will help.

Thanks