UFS 3.1 relies on a segmented power architecture to balance high-speed digital processing with energy efficiency.
The UFS 3.1 chip must be carefully desoldered using a hot-air rework station.
standard (JESD220E) typically uses a 153-ball BGA (Ball Grid Array) package, similar to previous UFS generations like 2.1 and 3.0, but with updated electrical specifications for higher speeds. Key Signals and Power Rails
: Differential transmit pairs from the host to the UFS device. ufs 3.1 pinout
A high-precision reference clock signal (usually 19.2 MHz, 26 MHz, 38.4 MHz, or 52 MHz) supplied by the host processor (SoC) to synchronize the M-PHY state machine.
According to technical specifications from Arasan Chip Systems and Kingston , the pinout is categorized into high-speed data lanes, power supply lines, and control signals.
: When a mobile device logic board is physically destroyed, data recovery specialists desolder the UFS 3.1 chip. Using specialized BGA153/254 adapter sockets mapped to the correct pinout, the chip is read using specialized hardware programmers (like Medusa Pro II, EasyJtag Plus, or MiPi Tester). Key Signals and Power Rails : Differential transmit
The power supply for the controller's digital logic circuits. It typically operates at 1.2V .
With legacy eMMC, investigators could solder tiny wires to matching test points on a phone's motherboard (In-System Programming) to dump the storage. With UFS 3.1, this is exceptionally difficult. The extreme high-frequency signals running through the TX and RX differential pairs can be degraded by the added capacitance of even a tiny soldered wire, causing communication failures.
The pins on a UFS 3.1 storage chip are divided into four primary functional groups: High-Speed Data Lines, Power Supply, Clock/Reset Controls, and Ground/Reserved pins. 1. High-Speed Data Interface (MIPI M-PHY) : When a mobile device logic board is
Understanding the UFS 3.1 pinout is essential for interacting directly with modern storage chips outside their host environment. By accurately mapping the differential M-PHY lanes, establishing correct power across all three rails (VCC, VCCQ, and VCCQ2), and supplying a clean reference clock, engineers and technicians can safely interface with UFS 3.1 silicon for low-level programming, testing, and critical data recovery procedures.
UFS 3.1 operates on a split-voltage architecture to balance low power consumption with high-speed performance.