Kindly advise if below part marking match with ALTERA MPN: EPCQ64ASI16N? Please help to share part marking details for this item if available. Thanks.

Hi Najwa,

Please cross check with the supplier that you have bought EPCQ64 devices. If you have purchased the devices from the authorize distributor or supplier, then those devices are authentic with the correct MPN : EPCQ64ASI16N.

https://www.intel.com/content/www/us/en/partner/where-to-buy/overview.html

Otherwise, Intel (Altera) do not ensure the device quality and do not provide the further service. Here is solution published for your reference:

https://www.intel.com/content/www/us/en/programmable/support/support-resources/knowledge-base/solutions/rd11102010_938.html

Regards,

Nooraini