Kioxia Introduces Next Generation e-MMC Ver. 5.1-Compliant Embedded Flash Memory Products

New Devices Feature Newer BiCS FLASH™ 3D Flash Memory, Improved Read and Write Performance

  • September 27, 2023
  • Kioxia Corporation

Tokyo – Kioxia Corporation, a world leader in memory solutions, today announced sampling(1)  of new, higher performing JEDEC e-MMC Ver. 5.1(2) -compliant embedded flash memory products for consumer applications. The new products integrate a newer version of the company’s BiCS FLASH™ 3D flash memory(3) and a controller in a single package, reducing processor workload and improving ease of use. Both 64 and 128 gigabytes (GB) products will be available.

Kioxia: e-MMC Ver. 5.1 Embedded Flash Memory Device

As the market continues to shift to UFS(4), there are cases where e-MMC may still be used. This includes consumer products with mid-range storage requirements such as tablets, personal computers, point of sale devices and other portable handheld devices, as well as smart TVs and smart NICs. Kioxia continues to reinforce its market-leading position by delivering a broad, high-performance product lineup and expanding the available options for these applications. The new Kioxia devices improve sequential and random write performance by approximately 2.5x and random read performance by approximately 2.7x over previous generation devices(3). Additionally, terabytes written (TBW)(5) is improved by approximately 3.3x over previous generation devices, in correspondence with an enhanced area setting(6) for whole e-MMC area.

Kioxia is now sampling its next-generation e-MMC devices, with mass production expected in spring of 2024.

Notes

  1. The company’s newest devices are supported in two capacities: 64 gigabytes (GB) and 128GB. Sample shipments of the 64GB device began this month, with the 128GB device scheduled to follow after October. Specification of the samples may differ from commercial products.
  2. e-MMC (embedded Multi Media Card): One of standard specifications of embedded flash memory defined by JEDEC. The new product supports the command queuing and secure write protection functions which is specified as an option in JEDEC Ver. 5.1.
  3. Compared to Kioxia’s previous generation devices "THGAMSG9T24BAIL", "THGAMST0T24BAIL".
  4. 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.
  5. TBW or Terabytes Written measures how many cumulative writes that a drive can expect to complete over its lifespan.
  6. If Enhanced Area is set, the total configurable consumer-usable capacity will be reduced.
  • Read, write speeds and TBW are the best values obtained in a specific test environment at Kioxia and Kioxia warrants neither read nor write speeds nor TBW in individual devices. Read, write speed and TBW may vary depending on device used and file size read or written.
  • In every mention of a Kioxia product: Product density is identified based on the density of memory chip(s) within the Product, not the amount of memory capacity available for data storage by the end user. Consumer-usable capacity will be less due to overhead data areas, formatting, bad blocks, and other constraints, and may also vary based on the host device and application. For details, please refer to applicable product specifications. The definition of 1KB = 2^10 bytes = 1,024 bytes. The definition of 1Gb = 2^30 bits = 1,073,741,824 bits. The definition of 1GB = 2^30 bytes = 1,073,741,824 bytes. 1Tb = 2^40 bits = 1,099,511,627,776 bits.
  • Company names, product names and service names may be trademarks of third party companies.

About Kioxia

Kioxia is a world leader in memory solutions, dedicated to the development, production and sale of flash memory and solid-state drives (SSDs). In April 2017, its predecessor Toshiba Memory was spun off from Toshiba Corporation, the company that invented NAND flash memory in 1987. Kioxia is committed to uplifting the world with “memory” by offering products, services and systems that create choice for customers and memory-based value for society. Kioxia's innovative 3D flash memory technology, BiCS FLASH™, is shaping the future of storage in high-density applications, including advanced smartphones, PCs, SSDs, automotive and data centers.

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Information in this document, including product prices and specifications, content of services and contact information, is correct on the date of the announcement but is subject to change without prior notice.