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Организация Jedec, которая занимается сертификацией флеш-памяти в мобильных устройствах, представила описание нового стандарта.
Новый стандарт UFS 3.1 получил несколько новых функций, которые в первую очередь нацелены на снижение энергопотребления флеш-памяти в смартфонах. Для этого есть три нововведения, по сравнению с предыдущим поколением памяти.

Ключевые нововведения:

Write Booster — дополнительный энергонезависимый кэш SLC, который помогает экономить энергию смартфона и увеличивать скорость записи данных;
DeepSleep — новый режим работы, который позволяет памяти UFS сохранить полноценную функциональность при минимальных затратах энергии, когда устройство находится в фоновом режиме. В первую очередь это предназначено для недорогих модулей памяти;
Performance Throtlling Notification — функция позволяет памяти UFS передавать на устройство данные о снижении производительности из-за перегрева (троттлинг).
Стандарт UFS — это описание характеристик, скорости и функций, которыми должна обладать флеш-память в смартфоне. Это позволяет производителям экономить ресурсы на настройке и подготовке накопителя памяти в мобильном устройстве — например, можно установить модуль памяти UFS 3.0 в три разных смартфона, и он будет одинаково работать везде.

Информации о запуске первых устройств с памятью UFS 3.1 пока нет. Описание стандарта только появилось, пройдет время, прежде чем производители внедрят его в готовые продукты.

JEDEC Publishes Update to Universal Flash Storage (UFS) Standard
ARLINGTON, Va., USA – January 30, 2020 – JEDEC Solid State Technology Association, the global leader in the development of standards for the microelectronics industry, today announced the publication of Universal Flash Storage (UFS) version 3.1, JESD220E. In addition, an optional new companion standard, JESD220-3: UFS Host Performance Booster (HPB) Extension, has also been published. Developed for mobile applications and computing systems requiring high performance with low power consumption, UFS 3.1 introduces new features intended to help maximize device performance while minimizing power usage. Both JESD220E and JESD220-3 are available for download from the JEDEC website.

JESD220E UFS 3.1 defines the following key updates over the prior version of the standard:

Write Booster: a SLC non-volatile cache that amplifies write speed
DeepSleep: a new UFS device low power state targeting lower cost systems that share UFS voltage regulators with other functions
Performance Throttling Notification: allows the UFS device to notify the host when storage performance is throttled due to high temperature
JESD220-3 Host Performance Booster (HPB) Extension provides an option to cache the UFS device logical-to-physical address map in the system’s DRAM. For UFS devices with a large density, using system DRAM provides larger and faster caching thereby improving the read performance of the device.

“The development of UFS 3.1 is a prime example of the ongoing commitment within JEDEC to continually improve and enhance JEDEC standards to meet the needs of the industry and, ultimately, the consumer,” said Mian Quddus, Chairman of the JEDEC Board of Directors and the JC-64 Committee for Embedded Memory Storage and Removable Memory Cards. He added, “The new features introduced with UFS 3.1 and UFS HPB will offer product designers greater flexibility in managing power consumption and enhancing device performance.”

About UFS
UFS is an open standard, high-performance interface designed for use in applications where power consumption needs to be minimized, including mobile systems such as smartphones and tablets as well as automotive applications. Its high-speed serial interface and optimized protocol enable significant improvements in throughput and system performance. The prior version of the standard, UFS 3.0, introduced two features specifically for the automotive market: the ability to function at an extended temperature range (-40C, 105C) and refresh operation with added host control mechanism to improve device data reliability.

MIPI Collaboration
To achieve the highest performance and most power efficient data transport, JEDEC UFS leverages industry leading specifications from the MIPI® Alliance to form its Interconnect Layer. This collaboration continues with UFS version 3.1, which references the MIPI M-PHY® v4.1 physical layer specification and the MIPI UniPro® v1.8 transport layer specification.

Partnership with UFSA
JEDEC partners with the Universal Flash Storage Association (UFSA), which was created to support the widespread adoption and acceptance of the JEDEC UFS standard. UFSA’s primary mission includes the promotion of UFS technology and infrastructure by providing product compliance and UFS logo certification management. Through compliance testing UFSA provides valuable input back to JEDEC for future specification development. http://www.ufsa.org.

About JEDEC
JEDEC is the global leader in the development of standards for the microelectronics industry. Thousands of volunteers representing nearly 300 member companies work together in over 100 JEDEC committees and task groups to meet the needs of every segment of the industry, manufacturers and consumers alike. The publications and standards generated by JEDEC committees are accepted throughout the world. All JEDEC standards are available for download from the JEDEC website. For more information, visit http://www.jedec.org.

MIPI® and MIPI M-PHY® and MIPI UniPro® are registered trademarks owned by MIPI Alliance. For more information about MIPI Alliance and its specifications, visit http://www.mipi.org

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