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MCU targets M2M wireless communication apps

Posted: 23 Sep 2008     Print Version  Bookmark and Share

Keywords:MCU  wireless communication  M2M 

Renesas Technology Corp. has announced the AE470G secure MCU for Machine-to-Machine (M2M) wireless communication applications.

ROM-based Bluetooth development kit

The AE470G is built around the AE-4 CPU core, which was developed specifically for use in secure MCUs, and integrates 144 KB of high-performance electrically erasable and programmable read-only memory. It is suitable for use in a wide range of machines requiring M2M wireless communication capabilities.

Previous secure MCU products from Renesas Technology had an operating temperature range of

-25 to +85�C. Renesas says that the AE470G expands this range to -40 to +105�C, making it suitable for M2M equipment that must withstand severe temperatures, such as systems intended to be installed outdoors.

The AE470G employs an 8-pin ultra-thin small-outline non-lead (USON) surface mount package measuring only 5.0 mm × 6.0 mm (0.65 mm thick). The small mounting area of the ultra-compact and thin package makes the AE470G suitable for use in compact systems. For example, it is ideal for applications such as utility meters.

The M2M communication market includes many systems that require continuous operation over long periods of time, such as vending machines. This means that secure MCUs for such applications must provide a high level of reliability. The AE470G incorporates 144 KB of EEPROM that can be used to store programs or data. This EEPROM is of the metal oxide nitride oxide silicon (MONOS) type, which is exclusive to Renesas Technology and has a proven record of reliability, claims the company. The manufacturing parameters have been optimised to achieve 500,000 rewrite cycles, and a data storage period after programming of 10 years.

Additional peripheral and security functions include an I/O port, a half-duplex UART that complies with ISO/IEC7816-3, a random number generator, a coprocessor with DES encryption support, and an interval timer.

Sample shipments will begin in October 2008 in Japan.





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