04/14/2023

120 MB/sGear-1

240 MB/sGear-2

480 MB/sGear-3

Univeral Flash Storage

Integrated with MIPI Mobile Devices

RFIC Companion or

Bridge ChipS

PM

I

RFFE

PowerManagement

UFSStorageDevice

UniPro

UniPro

UniPro

SP

MI

SL

IMb

us

SL

IMb

us

SLIMbus

UFS-SCSI Command Set Layer (UCS)

UFS Transport Protocol Layer (UTP)

UFS InterConnect Layer (UIC)

L4 = Transport

L3 = Network

L2 = Data Link

L1.5 = Phy adapt

L1 = M-PHY

UniPro

M-PHY

UFS Controller

IC

Application SW & Stacks

Layered Architecture

04/14/2023

JEDECUFSA.org