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CY8C4124PVI-442 and CY8C4124PVI-442T are same package and same feature. The 'PV' means both they are 28-SSOP package as per its datasheet.
The 'T' at the end means when chips shipped, they are packed by Tape and Reel.
CY8C4124PVI-442: Packed by TRAY
CY8C4124PVI-442T: Packed by Tape and Reel