FEMDNN128G-58A43
High-performance UFS 3.1 with 128GB capacity, sequential read up to 2100MB/s for flagship mobile devices
Product Overview
Description
The FEMDNN128G-58A43 is a high-performance UFS 3.1 storage solution designed for flagship smartphones and performance-critical applications.
With 128GB capacity, sequential read speeds up to 2100MB/s, and MIPI M-PHY 4.1 interface, it delivers exceptional storage performance.
The device supports advanced features including WriteBooster, DeepSleep power mode, and hardware-based encryption.
Product Series
FEMDNN
Primary Application
Flagship smartphones
Key Features
- UFS 3.1 high-speed interface
- 128GB storage capacity
- Sequential read up to 2100MB/s
- Sequential write up to 1200MB/s
- WriteBooster for enhanced write performance
- DeepSleep power saving mode
- Hardware-based encryption support
- BGA-153 11.5x13mm package
Specifications
| Capacity | 128GB |
|---|---|
| Interface | UFS 3.1 (MIPI M-PHY 4.1) |
| Sequential Read | Up to 2100MB/s |
| Sequential Write | Up to 1200MB/s |
| Random Read (IOPS) | Up to 150K |
| Random Write (IOPS) | Up to 80K |
| Operating Temperature | -25°C to +85°C |
| Package | BGA-153 |
Applications
Flagship smartphones
Electronic system design
High-end tablets
Electronic system design
Gaming devices
Electronic system design
AR/VR headsets
Electronic system design
High-performance computing
Electronic system design
FAE Expert Insights
"The FEMDNN128G-58A43 is an excellent UFS 3.1 solution for high-performance mobile applications. The 2100MB/s sequential read speed enables fast app launches and smooth 4K video recording. I have used this UFS in multiple flagship smartphone projects with outstanding performance. The WriteBooster feature significantly improves burst write performance for camera applications. The DeepSleep mode helps extend battery life in mobile devices. The 128GB capacity is the sweet spot for current flagship devices. For premium mobile devices requiring top-tier storage performance, this UFS 3.1 product delivers excellent results at competitive pricing compared to international brands."
High-performance UFS 3.1 with 2100MB/s read speed for flagship mobile devices
— Jennifer Liu, BeiLuo
Frequently Asked Questions
What is the maximum speed of UFS 3.1 compared to UFS 2.1?
UFS 3.1 provides significant performance improvements over UFS 2.1. Sequential read speeds increased from ~900MB/s (UFS 2.1) to ~2100MB/s (UFS 3.1), and sequential write from ~250MB/s to ~1200MB/s. The M-PHY 4.1 interface in UFS 3.1 supports 11.6Gbps per lane compared to 5.8Gbps in UFS 2.1. UFS 3.1 introduces WriteBooster for enhanced sustained write performance and DeepSleep for improved power efficiency.
UFS 3.1 provides 2x performance improvement over UFS 2.1 for demanding applications.
What is WriteBooster and how does it improve performance?
WriteBooster is a UFS 3.1 feature that uses SLC caching to accelerate write performance. When enabled, a portion of the TLC NAND operates in SLC mode to absorb burst writes at higher speeds. This significantly improves sustained write performance for applications like 4K video recording and burst photography. The WriteBooster cache dynamically manages data migration from SLC to TLC, optimizing both performance and endurance.
WriteBooster is essential for applications requiring high sustained write performance.
Does UFS 3.1 support hardware encryption?
Yes, UFS 3.1 supports hardware-based encryption through the UFS standard's security features. The device supports RPMB (Replay Protected Memory Block) for secure storage of critical data. UFS supports inline encryption engines that can perform AES encryption/decryption without host processor involvement, improving both security and performance. These features are essential for protecting user data on mobile devices.
Hardware encryption provides data security without performance penalty.
What is the power consumption of UFS 3.1?
UFS 3.1 power consumption varies by operating mode. Active sequential read consumes approximately 1.5-2.5W, while sequential write consumes 2-3W. The DeepSleep mode reduces idle power consumption to less than 1mW, significantly extending battery life in mobile devices. UFS 3.1 also supports various power modes (Active, Sleep, Power-down) that can be controlled by the host to optimize power consumption based on usage patterns.
DeepSleep mode provides excellent power efficiency for battery-powered devices.
Is UFS backward compatible with older host controllers?
UFS devices are backward compatible with older UFS host controllers, but will operate at the lower interface speed. For example, a UFS 3.1 device connected to a UFS 2.1 host will operate at UFS 2.1 speeds (~900MB/s read). The device negotiates the maximum supported speed during the link startup sequence. For optimal performance, both host and device should support UFS 3.1 with M-PHY 4.1 interface.
For full UFS 3.1 performance, ensure host controller supports UFS 3.1.