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KIOXIA introduces next-generation UFS ver. 4.0 devices

KIOXIA introduces next-generation UFS ver. 4.0 devices

Enterprise & IT May 31,2023 0

KIOXIA Europe GmbH announced sampling[1] of new, higher performing UFS (Universal Flash Storage)[2] Ver. 4.0 embedded flash memory devices. These devices deliver fast embedded storage transfer speeds in a small package size and are targeted to a variety of next-generation mobile applications, including leading-edge smartphones. The improved performance enabled by KIOXIA's UFS products allows these applications to take advantage of 5G's connectivity benefits, leading to faster downloads, reduced lag time and an improved user experience.

UFS Ver. 4.0 devices from KIOXIA integrate the company's innovative BiCS FLASH™ 3D flash memory and a controller in a JEDEC-standard package. UFS 4.0 incorporates MIPI M-PHY 5.0 and UniPro 2.0 and supports theoretical interface speeds of up to 23.2Gbps per lane or 46.4Gbps per device. UFS 4.0 is backward compatible with UFS 3.1.

Key Features include:
Performance improvement over previous generation[3]: +18% sequential write, +30% random write and +13% random read
Supports High Speed Link Startup Sequence (HS-LSS) features: With conventional UFS, Link Startup (M-PHY and UniPro initialization sequence) between device and host is performed at low-speed PWM-G1 (3~9Mbps[4]), but with HS-LSS, it can be performed at a faster HS-G1 Rate A (1248Mbps). This is expected to reduce the time for Link Startup by approximately 70% compared to the conventional method.
Enhances security: By utilizing Advanced RPMB for faster read and write access to security data, like user credentials on RPMB area, and RPMB Purge to ensure discarded data is sanitized securely and rapidly
Supports Extended Initiator ID (Ext-IID): Intended to be used with Multi Circular Queue (MCQ) at the UFS 4.0 host controller for improved random performance

"With the introduction of our new UFS 4.0 line-up KIOXIA again strengthens its position as a leading supplier of innovative UFS technology," states Axel Stoermann, Vice President Memory Marketing & Engineering, KIOXIA Europe GmbH.
Notes:

[1] The company's newest devices are supported in three capacities: 256 gigabytes (GB), 512GB and 1 terabyte (TB). Sample shipments of the 256GB and 512GB device began this month, with the 1TB device scheduled to follow after October. Specification of the samples may differ from commercial products.
[2] Universal Flash Storage (UFS) is a product category for a class of embedded memory products built to the JEDEC UFS standard specification. Due to its serial interface, UFS supports full duplexing, which enables both concurrent reading and writing between the host processor and UFS device.
[3] KIOXIA Corporation's previous generation 512GB device No. "THGJFJT2T85BAT0"
[4] PWM-G1 communication speed depends on the product.

Tags: Kioxia
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