Translation - Japanese: いくつかの製品番号にある末尾の “T” の意味。 - Community Translated (JA)
What does the 'T' at the end of some part numbers mean?
The "T" on the end of the part number stands for the 'Tape-and-reel' packaging option.
For Eg. - 'T' in CY7C1021DV33-10ZSXIT implies Tape and Reel.
You can avail the packaging details of a part in the Ordering information section of the datasheet.