Ufs 3.1 Pinout <99% EXTENDED>

Beyond the high-speed data paths, UFS requires specific lines for hardware management and low-power states.

Unlike older eMMC storage that uses a 4-bit or 8-bit parallel bus, UFS 3.1 utilizes a high-speed serial interface ufs 3.1 pinout

The UFS 3.1 interface consists of 25 pins, divided into two rows of 12 pins each and one pin in the middle. The interface is designed to be compact, with a small footprint that makes it suitable for mobile devices. Beyond the high-speed data paths, UFS requires specific

| Pin(s) | Symbol | Description | Importance | | :--- | :--- | :--- | :--- | | A2, A3, A4, B1, B2, B3, B4, C1, C2, C3, C4 | | NAND Core Supply – 2.5V to 3.6V (typically 3.3V). Supplies power to the NAND flash array. High current draw during writes. | Critical | | D1, D2, D3, E1, E2, E3, F1, F2, F3, G1, G2, G3, G4 | VCCQ | Controller & I/O Supply – 1.14V to 1.26V (typically 1.2V) or 1.8V. Powers the UFS controller core and M-PHY. | Critical | | A1, K4, L4, M4, N1, N2, N3, N4, N5, N6, N7... | VSS | Ground. All VSS balls must be connected to a solid ground plane. | Critical | | H4, J4 | VCCQ2 | Optional second I/O supply for legacy compatibility. Usually tied to VCCQ. | Low | | Pin(s) | Symbol | Description | Importance

The standard package for UFS 3.1 is the (11.5mm x 13mm). The ball pitch is typically 0.5mm. Below is the functional pinout categorized by signal group.