Please tell me about the soft error rate (FIT) of EPCQ4ASI8N and EP2C20F484C8N.

Hi,

For Cyclone II device, kindly go to the link below:

https://marketing.altera.com/ts/wwrsc/pg/comp/Document%20Library4/1/SEU/Soft_Errors_Altera_PLDs%20-%202005.pdf

For EPCQ, i will update once i got the information.

Thank you.

Regards,

Aim