Datasheet — Bga 254 Ufs

Since "BGA 254" refers to the physical package (254-ball grid array) and "UFS" refers to the interface protocol (typically UFS 2.1, 3.0, or 3.1), the specific features depend on the (e.g., Samsung, Kioxia, Micron, SK hynix, Yangtze).

(e.g., KLUEG8UHDC-B0E1, THGJFCT0T44BAIL), provide it, and I can look up the exact feature list for that device. bga 254 ufs datasheet

It seems you are looking for the of a BGA-254 UFS (Universal Flash Storage) device from a datasheet. Since "BGA 254" refers to the physical package