A recent article in The Wall Street Journal highlighted that while the pace of innovation in devices like smartphones, PCs, and tablets might not seem as rapid today, they are finding new ways to evolve and bring about change. Hardware vendors are now focusing more on creating chips that are tailored for specific tasks, which is driving innovation in a different direction. This trend mirrors what we see in the realm of embedded systems data storage. Different storage technologies, each with their own unique capabilities, are offering customized solutions for a variety of applications. Fujitsu is leading the charge in this area, particularly with its focus on FRAM, NRAM, and ReRAM technologies.
As a crucial part of any system, storage performance is paramount. During a recent public address, Feng Yixin, Director of Product Management at Fujitsu Electronic Components (Shanghai) Co., Ltd., emphasized, "Different systems have varying demands when it comes to memory read and write speeds, repeatable read and write times, power consumption during read and write operations, security, and power supply. This diversity is pushing storage technology towards more specialized solutions." Fujitsu's FRAM memory, known for its nearly infinite read and write cycles, ultra-low power consumption, and ultra-fast read/write speeds, has seen widespread adoption across numerous markets in recent years. These include sectors like medical electronics, metrology, industrial automation, and automotive electronics. By 2019, Fujitsu aims to provide a comprehensive set of storage solutions, including FRAM, NRAM, and ReRAM, specifically designed for embedded system applications.
One of the standout features of Fujitsu's FRAM technology is its ability to ensure data integrity even in the event of a power outage or power fluctuation. This makes it particularly valuable in applications like electric meters and industrial automation equipment, where high reliability is essential. As Feng Yixin noted, "Our FRAM ensures that critical data is safely recorded in real-time, which is vital for industries requiring precise measurements."
Fujitsu has extended its personalized "customized" product offerings to a broader array of applications. Recently, they introduced new FRAM solutions—MB85RS128TY and MB85RS256T—that can operate in environments up to 125 degrees Celsius, making them ideal for automotive and industrial control machinery that demands adherence to stringent automotive industry standards like AEC Q100.
Fujitsu also made headlines last year with its industry-leading ReRAM (variable resistive memory) product, MB85AS4MT, which boasts the lowest non-volatile memory read power consumption in the industry, averaging just 0.2mA at 5MHz frequency. ReRAM combines the read/write speed of DRAM with the non-volatile nature of SSDs, meaning it retains data even when powered off. This makes it a promising candidate to replace future flash memory, potentially allowing a PC equipped with ReRAM to boot instantly.
Furthermore, Fujitsu Semiconductor became the world’s first manufacturer to announce the production of NRAM, a memory type whose performance surpasses that of DRAM by 1000 times. Unlike traditional NAND flash memory, NRAM stores data in a novel way. By the end of 2018, Fujitsu plans to release NRAM products targeting data centers and servers, with potential applications in consumer products and even mobile devices due to its low power consumption and lack of need for background data erasure, which could significantly extend the standby time of mobile devices.
Fujitsu’s FRAM, ReRAM, and NRAM technologies are paving the way for innovative storage solutions across various industries. The high endurance and fast read/write capabilities of FRAM have made it an excellent choice for industrial applications such as power meters. Meanwhile, ReRAM's low power consumption and large capacity make it ideal for flow meters, where maintaining data over long periods is crucial. High endurance and capacity NRAMs are expected to play a pivotal role in enhancing meter performance.
Feng Yixin concluded in a recent discussion within the metering industry that FRAM, which has been mass-produced for over 18 years, remains a key player in Fujitsu’s storage solutions, with ReRAM and NRAM complementing this lineup. The growing popularity of three-phase electric meters has served as a compelling "model project" for FRAM's global reach, with Fujitsu reporting global FRAM memory sales exceeding 3.3 billion units in 2016, including 40 million units for electric meter customers worldwide.
Fujitsu FRAM is instrumental in applications requiring the precise recording and storage of critical data from smart meters. Critical power usage data needs to be stored at very short intervals (1 to 3 times per second), and FRAM ensures that these data points are accurately preserved even in the moments before a power outage. This real-time data storage capability is invaluable for ensuring accurate billing in the power sector.
Fujitsu Semiconductor has utilized mature technology to produce FRAM for over 18 years, achieving cumulative sales of 3.3 billion units. The high reliability, robust supply chain, and ambitious business strategy are key factors behind FRAM's widespread adoption in electricity meters. Additionally, Fujitsu offers a broad range of FRAM products, including serial interface memory products ranging from 16Kb to 4Mb SPI interfaces and 4Kb to 1Mb I2C interface products, with power supply voltages expanding to include 1.8V working products alongside the primary 3.3V models.
The ultra-low power consumption and high-security features of FRAM have allowed it to penetrate the traditional three-phase meter market and begin making strides in single-phase meters, gas meters, and water meters. Security concerns are paramount in these applications, and FRAM's unique cell structure provides excellent device-level tamper resistance, preventing unauthorized data access. Furthermore, FRAM has passed stringent safety certifications, such as EAL4+ certification under the ESAP framework.
The Chinese market has emerged as a vital market for Fujitsu Semiconductor's FRAM products. Fujitsu has provided substantial support to Chinese customers regarding pricing, delivery, factory capacity allocation, and technical assistance. As a result, FRAM is experiencing renewed growth in applications like single-phase meters, water meters, and gas meters, following its successful entry into the industrial three-phase electricity meter market.
In conclusion, Fujitsu's commitment to innovation and customization in storage technology is reshaping the landscape of embedded systems, offering tailored solutions that cater to the diverse needs of modern applications.
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