|By Business Wire||
|February 11, 2014 11:00 PM EST||
Toshiba Corporation (TOKYO:6502) today announced that it has developed an eXtremely Low Leakage 65nm SRAM (XLL SRAM) suitable for back-up RAM in low power MCU that achieves a fast wake-up time from a deep sleep mode.
Toshiba presented this development at the 2014 IEEE International Solid-State Circuits Conference in San Francisco, California, on February 11.
There is strong demand for long battery discharge times in low power systems, including wearable devices, healthcare tools and smart meter. Although there are many challenges to reduce power of MCU used in these systems, with advances in the process generation, increasing of leakage current becomes problem as well as active power consumption. Reducing leakage current in RAM, which retains data during stand-by, is particularly important.
A typical MCU reduces power dissipation with a deep sleep mode, where stand-by current is under 1μA. However, this makes it impossible for typical SRAM to retain data, as SRAM require a stand-by current much higher than 1μA. As a result, data reloading takes a long time when the system wakes up from a deep-sleep mode. Use of FRAM as back-up RAM eliminates this reload problem, but FRAM is much slower and consumes more active power than SRAM and also needs more process cost.
Toshiba has developed an eXtremely Low Leakage SRAM (XLL SRAM) that has a leakage rate a thousand times lower than that of conventional SRAM; 27fA leakage current per bit when fabricated in 65nm process. This level is lower than that found in published data for SRAM beyond 65nm technology. The new SRAM can retain data for over 10 years with a single battery charge, in a back-up memory with a capacity of around 100Kbyte.
MOSFET fabricated with recent process technology has higher gate leakage, gate induced drain leakage (GIDL) and channel leakage. Toshiba has developed a low leakage transistor with thick gate oxide, long channel length and optimum source drain diffusion profile to reduce these leakage factors, and adopt it in the SRAM memory cell. The company has developed several innovative leakage reduction circuits. One is a source bias circuit to apply reverse back-bias to NMOS of memory cell, and another cuts off the supply voltage to peripheral circuits during data retention.
The low leakage transistor is larger than conventional transistor, increasing the overall cell area. Toshiba secured a 20% reduction in cell size compared to area designed by original design rule of this device under the condition of 1.2V supply voltage. Generally, large transistor circuits have higher active power dissipation. Toshiba has suppressed this by adopting “Quarter Array Activation Scheme (QAAS)” and “Charge Shared Hierarchical BitLine (CSHBL)” power reduction circuits.
An SRAM with a 7ns read access time is fast enough to be used as working RAM in low power MCU and for use as back-up RAM in deep-sleep mode because of its extremely low leakage current. As the system eliminates data reloading, the wake-up time from deep sleep mode is boosted.
Toshiba plans to use the SRAM in a product released in 2014, and expects to see wide use in coming battery-driven products.
Toshiba is a world-leading diversified manufacturer, solutions provider and marketer of advanced electronic and electrical products and systems. Toshiba Group brings innovation and imagination to a wide range of businesses: digital products, including LCD TVs, notebook PCs, retail solutions and MFPs; electronic devices, including semiconductors, storage products and materials; industrial and social infrastructure systems, including power generation systems, smart community solutions, medical systems and escalators & elevators; and home appliances.
Toshiba was founded in 1875, and today operates a global network of more than 590 consolidated companies, with 206,000 employees worldwide and annual sales surpassing 5.8 trillion yen (US$61 billion). Visit Toshiba's web site at www.toshiba.co.jp/index.htm
"We've just seen a huge influx of new partners coming into our ecosystem, and partners building unique offerings on top of our API set," explained Seth Bostock, Chief Executive Officer at IndependenceIT, in this SYS-CON.tv interview at 16th Cloud Expo, held June 9-11, 2015, at the Javits Center in New York City.
Aug. 2, 2015 10:00 PM EDT Reads: 678
Mobile, social, Big Data, and cloud have fundamentally changed the way we live. “Anytime, anywhere” access to data and information is no longer a luxury; it’s a requirement, in both our personal and professional lives. For IT organizations, this means pressure has never been greater to deliver meaningful services to the business and customers.
Aug. 2, 2015 07:15 PM EDT Reads: 219
Digital Transformation is the ultimate goal of cloud computing and related initiatives. The phrase is certainly not a precise one, and as subject to hand-waving and distortion as any high-falutin' terminology in the world of information technology. Yet it is an excellent choice of words to describe what enterprise IT—and by extension, organizations in general—should be working to achieve. Digital Transformation means: handling all the data types being found and created in the organizat...
Aug. 2, 2015 06:00 PM EDT Reads: 1,127
SYS-CON Events announced today that HPM Networks will exhibit at the 17th International Cloud Expo®, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. For 20 years, HPM Networks has been integrating technology solutions that solve complex business challenges. HPM Networks has designed solutions for both SMB and enterprise customers throughout the San Francisco Bay Area.
Aug. 2, 2015 05:45 PM EDT Reads: 509
Chuck Piluso presented a study of cloud adoption trends and the power and flexibility of IBM Power and Pureflex cloud solutions. Prior to Secure Infrastructure and Services, Mr. Piluso founded North American Telecommunication Corporation, a facilities-based Competitive Local Exchange Carrier licensed by the Public Service Commission in 10 states, serving as the company's chairman and president from 1997 to 2000. Between 1990 and 1997, Mr. Piluso served as chairman & founder of International Te...
Aug. 2, 2015 04:00 PM EDT Reads: 422
The Software Defined Data Center (SDDC), which enables organizations to seamlessly run in a hybrid cloud model (public + private cloud), is here to stay. IDC estimates that the software-defined networking market will be valued at $3.7 billion by 2016. Security is a key component and benefit of the SDDC, and offers an opportunity to build security 'from the ground up' and weave it into the environment from day one. In his session at 16th Cloud Expo, Reuven Harrison, CTO and Co-Founder of Tufin,...
Aug. 2, 2015 03:00 PM EDT Reads: 546
Container technology is sending shock waves through the world of cloud computing. Heralded as the 'next big thing,' containers provide software owners a consistent way to package their software and dependencies while infrastructure operators benefit from a standard way to deploy and run them. Containers present new challenges for tracking usage due to their dynamic nature. They can also be deployed to bare metal, virtual machines and various cloud platforms. How do software owners track the usag...
Aug. 2, 2015 02:00 PM EDT Reads: 251
SYS-CON Events announced today that MobiDev, a software development company, will exhibit at the 17th International Cloud Expo®, which will take place November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. MobiDev is a software development company with representative offices in Atlanta (US), Sheffield (UK) and Würzburg (Germany); and development centers in Ukraine. Since 2009 it has grown from a small group of passionate engineers and business managers to a full-scale mobi...
Aug. 2, 2015 12:00 PM EDT Reads: 346
With SaaS use rampant across organizations, how can IT departments track company data and maintain security? More and more departments are commissioning their own solutions and bypassing IT. A cloud environment is amorphous and powerful, allowing you to set up solutions for all of your user needs: document sharing and collaboration, mobile access, e-mail, even industry-specific applications. In his session at 16th Cloud Expo, Shawn Mills, President and a founder of Green House Data, discussed h...
Aug. 2, 2015 11:45 AM EDT Reads: 480
For IoT to grow as quickly as analyst firms’ project, a lot is going to fall on developers to quickly bring applications to market. But the lack of a standard development platform threatens to slow growth and make application development more time consuming and costly, much like we’ve seen in the mobile space. In his session at @ThingsExpo, Mike Weiner, Product Manager of the Omega DevCloud with KORE Telematics Inc., discussed the evolving requirements for developers as IoT matures and conducte...
Aug. 2, 2015 11:15 AM EDT Reads: 354
There are many considerations when moving applications from on-premise to cloud. It is critical to understand the benefits and also challenges of this migration. A successful migration will result in lower Total Cost of Ownership, yet offer the same or higher level of robustness. In his session at 15th Cloud Expo, Michael Meiner, an Engineering Director at Oracle, Corporation, analyzed a range of cloud offerings (IaaS, PaaS, SaaS) and discussed the benefits/challenges of migrating to each offe...
Aug. 2, 2015 11:00 AM EDT Reads: 175
One of the hottest areas in cloud right now is DRaaS and related offerings. In his session at 16th Cloud Expo, Dale Levesque, Disaster Recovery Product Manager with Windstream's Cloud and Data Center Marketing team, will discuss the benefits of the cloud model, which far outweigh the traditional approach, and how enterprises need to ensure that their needs are properly being met.
Aug. 2, 2015 09:00 AM EDT Reads: 1,698
In their session at 17th Cloud Expo, Hal Schwartz, CEO of Secure Infrastructure & Services (SIAS), and Chuck Paolillo, CTO of Secure Infrastructure & Services (SIAS), provide a study of cloud adoption trends and the power and flexibility of IBM Power and Pureflex cloud solutions. In his role as CEO of Secure Infrastructure & Services (SIAS), Hal Schwartz provides leadership and direction for the company.
Aug. 2, 2015 08:15 AM EDT Reads: 184
In a recent research, analyst firm IDC found that the average cost of a critical application failure is $500,000 to $1 million per hour and the average total cost of unplanned application downtime is $1.25 billion to $2.5 billion per year for Fortune 1000 companies. In addition to the findings on the cost of the downtime, the research also highlighted best practices for development, testing, application support, infrastructure, and operations teams.
Aug. 2, 2015 07:00 AM EDT Reads: 183
The Internet of Everything (IoE) brings together people, process, data and things to make networked connections more relevant and valuable than ever before – transforming information into knowledge and knowledge into wisdom. IoE creates new capabilities, richer experiences, and unprecedented opportunities to improve business and government operations, decision making and mission support capabilities.
Aug. 1, 2015 10:00 AM EDT Reads: 338