Meaning of Suffix SP - Meaning of Suffix SP Hello team, Please let me know what the SP at the end means 10CX105YF672I5GSP. Replies: Re: Meaning of Suffix SP Hi, The 'SP' part is same as rest of '10CX105YF672I5G' part. Some devices undergo additional qualification tests or some silicon fix for a issue, hence a suffix is added to the original OPN. Please continue to choose 10CX105YF672I5G in Quartus. Regards