Ufs 3.1 Pinout 【DELUXE ✪】

Subject: [Request] UFS 3.1 Standard Pinout Schematic

Body: Hi everyone,

I'm currently working on a trace repair for a mainboard with a UFS 3.1 storage chip. The pads are damaged, and I'm having trouble identifying the specific TX/RX differential pairs under the microscope.

Does anyone have a generic BGA-153 pinout diagram for UFS 3.1 they could share? Specifically looking to confirm the location of the REF_CLK and Ground pads to map the rest of the circuit.

Image of the damaged area attached below. 👇

Thanks in advance!

#MobileRepair #Schematics #UFS #HelpNeeded

Universal Flash Storage (UFS) 3.1: Technical Architecture and Pinout Analysis

Universal Flash Storage (UFS) 3.1 is an advanced storage standard developed by the JEDEC Solid State Technology Association to meet the high-bandwidth and low-latency demands of 5G smartphones, automotive systems, and IoT devices. By utilizing the MIPI M-PHY physical layer and UniPro link layer, UFS 3.1 achieves sequential read speeds of approximately 2100 MB/s, representing a significant performance leap over older standards like eMMC. 1. Physical Interface: The BGA153 Footprint

The standard physical package for UFS 3.1 is the 153-ball Fine-pitch Ball Grid Array (FBGA). While this 153-ball footprint is physically similar to the older eMMC BGA153, the internal pin assignments and electrical signaling are entirely different and incompatible. Samsung 512GB UFS 3.1 - Upgrade Guide & Performance 2026

You're looking for information on the pinout of UFS 3.1! ufs 3.1 pinout

UFS 3.1 (Universal Flash Storage 3.1) is a high-speed storage interface standard designed for mobile devices, such as smartphones, tablets, and laptops. It provides faster data transfer rates, lower power consumption, and higher storage capacity compared to its predecessors.

The UFS 3.1 interface uses a MIPI (Mobile Industry Processor Interface) M-PHY physical layer, which is a high-speed, low-power interface standard. The UFS 3.1 pinout consists of:

UFS 3.1 Pinout:

The UFS 3.1 interface supports multiple lanes, with each lane capable of operating at speeds of up to 2.9 Gbps (gigabits per second). The standard also supports multiple configurations, including:

The UFS 3.1 pinout is designed to be compatible with a wide range of applications, including smartphones, tablets, laptops, and other mobile devices. Subject: [Request] UFS 3

Do you have any specific questions about the UFS 3.1 pinout or its applications?

The 153 balls are arranged in a 13x13 grid, but many center balls are omitted or reserved. The key functional groups:

| Group | Balls | Description | |-------|-------|-------------| | Power | A1, A2, B1, B2, etc. | VCC (NAND), VCCQ (I/O & Controller), VCCQ2 (optional 1.8V) | | Ground | Multiple | VSS | | UFS Interface | C3, C4, D3, D4 | D0_RX, D0_TX, D1_RX, D1_TX (two lanes) | | Control | A4, A5 | REF_CLK, RST_N | | Boot/Init | B3 | C/D (Boot mode / configuration) |

The Universal Flash Storage (UFS) 3.1 standard has become the gold standard for embedded storage in flagship smartphones, automotive systems, and high-end IoT devices. While its impressive read/write speeds (up to 2100 MB/s) and low power consumption are well-publicized, the physical interface—the pinout—is often misunderstood or overlooked. This essay provides a clear, practical breakdown of the UFS 3.1 pinout, explaining its critical signals, common pitfalls, and how to use this knowledge for repair, data recovery, or hardware design.