Ufs 3.1 Pinout Upd Jun 2026

| Ball | Signal | Type | Description | |------|--------|------|-------------| | A1 | VCC | Power | NAND flash core power (2.5V - 3.6V, typically 3.3V) | | A2 | VCC | Power | Same as A1 – connect together | | A4 | REF_CLK | Input | Reference clock (26 MHz typical, 19.2 / 38.4 MHz possible) | | A5 | RST_N | Input | Hardware reset (active low, internal pull-up) | | B1 | VCC | Power | NAND core power | | B2 | VCC | Power | NAND core power | | B3 | C/D | Input | Configuration / Boot mode. Pull high (VCCQ) for normal boot, low for test modes. | | B4 | VSS | Ground | Ground | | B5 | VSS | Ground | Ground | | C1 | VCCQ | Power | Controller I/O & logic (1.14V - 1.26V typical 1.2V) | | C2 | VCCQ | Power | Same as C1 | | C3 | D0_RX | Input | Lane 0 – Receiver differential input (from host) | | C4 | D0_TX | Output | Lane 0 – Transmitter differential output (to host) | | D3 | D1_RX | Input | Lane 1 – Receiver differential input | | D4 | D1_TX | Output | Lane 1 – Transmitter differential output | | D5 | VSS | Ground | Ground | | E1 | VCCQ2 | Power | Optional second I/O supply (1.8V or 2.5V). If unused, tie to VCCQ or leave NC. | | ... (center balls omitted) | ... | ... | Most balls in rows E–J / cols 3–10 are reserved or not connected | | L2 | VSS | Ground | Ground | | M1 | VSS | Ground | Ground |

Stable voltage regulation is necessary to sustain high-speed write cycles without data corruption. UFS 3.1 requires three distinct power rails:

It is important to note that there is no single "universal" pinout diagram for the physical BGA (Ball Grid Array) package. JEDEC defines the interface signals, but the physical ball assignment is determined by the package size and density. ufs 3.1 pinout

In conclusion, the UFS 3.1 pinout is a critical component of the UFS 3.1 interface, enabling high-speed data transfer, low power consumption, and improved performance. Its scalable design and compatibility with JEDEC standards ensure interoperability and flexibility, making it an ideal storage solution for mobile devices. As mobile devices continue to evolve, the UFS 3.1 pinout will play a vital role in enabling advanced applications and features, driving innovation and growth in the mobile industry.

Reference clock signal. This pin provides the clock frequency (often 19.2 MHz, 26 MHz, or 38.4 MHz) required to synchronize high-speed data streams between the SoC and the storage controller. | Ball | Signal | Type | Description

: A multi-chip package (uMCP) configuration. This combines UFS 3.1 storage and LPDDR5/LPDDR4X RAM onto a single die to save logic board space. UFS 3.1 Pinout Architecture and Signal Groups

The simplest differentiation is to consult the device’s datasheet. The UFS 3.1 ballmap has distinct patterns for VCC, VCCQ, and the differential data pairs—patterns that do not match the parallel bus (DQ[7:0], CMD, CLK) of eMMC. If unused, tie to VCCQ or leave NC

UFS 3.1 (Universal Flash Storage) is a high-speed, serial interface designed for mobile systems like smartphones and tablets. Unlike older parallel interfaces like eMMC, the utilizes Low Voltage Differential Signaling (LVDS) to achieve high-performance full-duplex operation, allowing the device to read and write simultaneously. UFS 3.1 Pin Configuration Overview

(Note: Some early UFS implementations used a VCCQ rail for the controller and VCCQ2 for the PHY, but modern UFS 3.1 BGA packages generally consolidate these into the standard VCC and VCCQ2 configuration.)

[Request] UFS 3.1 Standard Pinout Schematic