The new device incorporates multiple optimizations that can slash energy consumption to less than 10 percent of what is required by standard FRAM solutions. With the MB85RDP16LX, Fujitsu is targeting industrial automation applications involving energy harvesting for rotary encoders, motor control and sensors.
The new device provides significant energy savings by integrating the counter function into the FRAM device. This contrasts with conventional system environments using standard memory, which require the MCU to read data from the memory device before performing computation and writing new data back to the memory to complete the counting operation. In contrast, the MB85RDP16LX replaces these separate read/write operations with a single command from the MCU and uses only the binary counter, resulting in energy savings of up to 94 percent.
The power-up time of the MB85RDP16LX has been optimized to 5 µs, which is 38 times faster than standard FRAM devices. This enables extremely fast device wake-up while consuming as little energy as possible.
MB85RDP16LX can be connected via single- and dual-SPI interfaces. A dual SPI interface offers customers the option of halving the clock frequency, achieving further power saving gains without impacting performance. Customers also have the option to configure with either a 43-bit or a 46-bit binary counter.
To satisfy the broad temperature ranges required by the industrial automation market, the MB85RDP16LX has been specified for an operating temperature range of -40 to 105 degrees C without compromising its 10-year data retention time.
MB85RDP16LX comes in an SON-8 package with physical dimensions of 2 mm x 3 mm, which permits the design of miniature devices. Compared with typical SOP-8 packages, more than 80 percent of the memory's PCB space can be saved.
Also available through Fujitsu is a 16kbit FRAM without the binary counter for general data storage. MB85RS16N devices are available in SOP and SON packages with operating temperature up to 95 degrees C.
The MB85RDP16LX has entered mass production and samples are now available.
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About Fujitsu Semiconductor America, Inc.
Fujitsu Semiconductor America, Inc. is a leading designer and developer of innovative semiconductor products and solutions for new generations of consumer, communications, automotive and industrial products. The company provides a comprehensive portfolio of high-quality, reliable semiconductor products and services throughout North and South America. Founded in 1979 and headquartered in Sunnyvale, California, Fujitsu Semiconductor America is a wholly owned subsidiary of Fujitsu Semiconductor Limited (FSL), Japan.
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SOURCE Fujitsu Semiconductor America
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Sherry Chen, Fujitsu Semiconductor America, Inc., 1-408-737-5654
Email Contact Dick Davies, IPRA, 1-415-652-7515