Fujitsu Develops New NOR Flash Memory Macro

Mar 24, 2010
Figure 1: Performance of Fujitsu's new flash memory macro

Fujitsu Microelectronics today announced the development of new flash memory macro that enables NOR flash memory circuits to achieve high-speed read operations while operating at low power currents.

The new macro is guaranteed to retain program data storage for 20 years, or 100,000 write/erase cycles for , while improving access speeds by 2.5 times to 10 nanoseconds (10 ns), and reducing the required operating current per cell by two-thirds to 9 microamperes (9 µA), compared to Fujitsu's past technologies. This technology will be implemented in microcontrollers featuring embedded in automotive, industrial, and consumer electronics applications for which high speed, low current, and high reliability are all priorities, thus contributing to a reduction in the burden on the environment.

Fujitsu has an established track record producing high-reliability microcontrollers featuring embedded NOR flash memory. However, with rising demand for microcontrollers that achieve even higher speeds while consuming less power, it becomes imperative to develop a new flash memory macro to accommodate these needs. Burst mode is one method of accelerating operation speeds of flash memory macros, but depending on characteristics of the CPU core, this can result in undesirable wait states while data is being processed, thereby lowering the overall performance of the .

The new flash memory macro uses circuit elements from Fujitsu's proprietary high-speed memory-access technology FCRAM (fast-cycle random-access memory) in its NOR flash memory circuit, resulting in high speed, low operating current, and high reliability.

By utilizing - as a key feature of FCRAM - an optimized cell array that reduces load during drive operation, and through innovations in power-supply management technology, the new flash memory macro can accelerate data-read methods. These innovations improve access speeds by 2.5 times to 10 ns, while cutting operating current for each cell by two-thirds to 9 µA, compared to Fujitsu's past technologies (Figure 1). By utilizing microcontrollers embedded with this technology, it becomes possible to enhance the performance of battery-operated portable audio-visual devices and to extend battery life.

Figure 2: Fujitsu's flash memory technology roadmap

The new flash memory macro will be used as a core technology for ecological technologies (Figure 2). By offering flash memory microcontrollers embedded with these ecological technologies, Fujitsu will be able to provide high reliability, high temperature tolerance and high-speed technologies that are particularly essential for automotive applications. The inclusion of these environmentally-friendly technologies in microcontrollers with embedded flash memory will contribute to a reduction in the environmental burden footprints of embedded systems.

Explore further: Ultralow-power RFID transponder chip in thin-film transistor technology on plastic

add to favorites email to friend print save as pdf

Related Stories

Toshiba to launch 43nm SLC NAND flash memory

Oct 28, 2008

Toshiba today announced the launch of a new line-up of 43nm single-level cell (SLC) NAND flash memory products available in densities ranging from 512Mbits to 64 gigabits (Gb) and in a total of 16 versions.

Recommended for you

Amputee puts limb system through its paces

14 minutes ago

"Amputee Makes History with APL's Modular Prosthetic Limb" is the headline from Johns Hopkins Applied Physics Laboratory, where a team working on prosthetics observed a milestone when a double amputee showed ...

Brazil's Coelho offers $100,000 for N. Korea parody film

22 minutes ago

Brazilian author Paulo Coelho offered Thursday to pay Sony $100,000 for rights to "The Interview," protesting the company's decision to scrap the North Korean parody film amid chilling threats from hackers.

Poll: Americans skeptical of commercial drones

1 hour ago

Americans are skeptical that the benefits of the heralded drone revolution will outweigh the risks to privacy and safety, although a majority approve of using small, unmanned aircraft for dangerous jobs or ...

User comments : 1

Adjust slider to filter visible comments by rank

Display comments: newest first

sender
not rated yet Mar 25, 2010
the main graph gives no indication as to metric capabilities just arbitrary percentages with no backing or comparison

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.