Micron Technology Universal Flash Storage 4.1 (UFS4.1)

Storage technology has evolved dramatically in recent years, with Universal Flash Storage 4.1 (UFS4.1) at the heart of this evolution.
UFS4.1 is highly compatible with cutting-edge fields such as AI (artificial intelligence), and offers new value that goes beyond the boundaries of conventional storage.
This page introduces the features and lineup of UFS4.1.

Features

Incredible data transfer speed and efficiency

UFS4.1 achieves high-speed data transfer speeds of up to 4,100MB/s, making reading and writing digital content smoother than ever before. This superior processing power enables real-time data analysis and processing using AI algorithms, making it ideal for applications that require quick access to large amounts of data and instant learning and prediction.
In addition, UFS uses a serial interface, allowing simultaneous reading and writing of data through full-duplex communication, which significantly improves data transfer speeds, significantly exceeding the performance of conventional e.MMC (maximum 400MB/s).

Figure 1. Comparison of data transfer speeds between UFS and e.MMC

Equipped with the world's fastest G9 NAND

Micron G9 NAND delivers the industry's fastest NAND I/O transfer speeds at 3.6GB/s, meeting the low latency and high throughput needs of data-centric workloads, from AI training and machine learning to unstructured databases, autonomous driving vehicles and cloud computing.

Featuring the fastest NAND available, Micron UFS 4.1 products deliver the highest levels of performance and innovation.

Figure 2. Micron G9 NAND (Source: micron-g9-chip-functional-iso_transparent-cc.png (3000×2000))

Micron proprietary firmware

This function optimizes the efficiency of how and where data is stored within a storage device.

Data Defragmentation

Performance degradation is often caused by data fragmentation, where files become scattered across the storage and are difficult to read efficiently. Data Defragmentation addresses this issue by allowing the storage controller to issue defragmentation commands directly within the NAND, bypassing the host layer.

Fixed features of WriteBooster

WriteBooster Pinning allows the host to pin frequently used data from a designated area in the storage device called WriteBooster, facilitating the dynamic transfer of important data from storage to memory, facilitating more efficient processing without putting a strain on memory capacity.

Intelligent Latency Tracker (ILT) function

Monitors I/O storage latency on both the system and storage devices, detecting and analyzing abnormal delays that affect smartphone performance.

Product lineup

The UFS4.1 products offered by Micron are shown in the table below.

Product model number	MTFC1TBGBCTD-AAT	MTFC512GBGBCTD-AAT	MTFC512GBGBCTD-AIT	MTFC256GBGBCTD-AIT	MTFC128GBGBCTD-AIT
capacity	1TB	512GB		256GB	128GB
NAND	TLC
protocol	UFS4.1
operating temperature	-40℃ ~ +105℃		-40℃ ~ +85℃
Number of balls	153-ball
size	11.50 x 13.00 x 1.20