need alternative for "EP2C15AF256I8N"

Just the same package, or do you want a drop-in compatible pinout also?

Have you looked at the device migration tool in Quartus?

I need a drop-in compatible pinout also.

Well, the Quartus 13.0sp1 (supports CycloneII device family) has a number of smaller/larger cell count devices that are footprint compatible.

Depends on if you want to stay in the same (now EOL/obsolete) device family.

I doubt you will find any newer devices CycloneIV/V/10 or MAX5/10 that are drop-in footprint compatible.

That will take a bunch of work on your part reading data sheets and comparing device pinouts.

Unfortunately the Quartus migration tool does not help very much when going between device families.

Hello,

You may want to refer to this link : https://cdrdv2.intel.com/v1/dl/getContent/654376?explicitVersion=true

Check Table 1-3.

You can check with distributors if the replacement part number is available.

regards,
Farabi

Hello,

I’m glad that your question has been addressed, I now transition this thread to community support. If you have a new question, feel free to open a new thread to get the support from Intel experts. Otherwise, the community users will continue to help you on this thread. Thank you.

regards,
Farabi