The first and most immediate revelation in the datasheet is the physical interface: . Unlike its predecessor (eMMC, often 153 or 169 balls), the UFS BGA 254 package is a study in power and pin efficiency. The increase in ball count is not arbitrary; it accommodates two high-speed lanes (Lane 1 and Lane 2) for the M-PHY physical layer, multiple power supply rails (VCC for NAND, VCCQ for interface, VCCQ2 for 1.8V I/O), and dedicated reference clocks.
BGA 254 is a type of packaging used for UFS devices. BGA stands for Ball Grid Array, which refers to the arrangement of solder balls on the package. The "254" in BGA 254 represents the number of solder balls on the package, which is 254 in this case. The BGA 254 package is a compact and reliable packaging solution that provides a high degree of connectivity and durability. Ufs Bga 254 Datasheet