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Smartcard MCU with USB controller ups security

Posted: 05 Mar 2008 ?? ?Print Version ?Bookmark and Share

Keywords:32bit smartcard MCU? USB controller?

Renesas Technology Corp. has launched the AE56U, the company's first 32bit MCU for smartcards with an on-chip USB controller. The device is suitable for USB token applications implementing highly secure digital signature functionality for fields such as online banking.

The AE56U combines USB controller and smartcard MCU on a single chip, making it possible to create USB tokens that are thinner and cheaper while simplifying mounting.

The AE56U is built around the high-speed, high-performance AE-5 32bit CPU core. It integrates a direct memory access controller (DMAC) that supports high-speed communication and reduces the CPU load, a coprocessor with Data Encryption Standard (DES) encryption support for high-level security, and a coprocessor for modular exponentiation. The AE56U can handle 2,048bit RSA encryption processing.

The AE56U employs Renesas Technology's proprietary metal oxide nitride oxide silicon (MONOS) EEPROM to ensure a high degree of reliability. The circuit design has been tweaked to reduce the size of the memory cells and achieve an excellent cost-performance ratio. The large memory capacity of 72Kbytes is sufficient to store multiple applications or large data sets.

In addition, the AE56U has a full 224Kbytes of on-chip mask ROM that can be used to store a general OS that performs multiple types of processing. The large capacity means that space is available to accommodate future OS upgrades even if their size is larger. The mask ROM can also be used to store application programs or data that do not need to be overwritten, so maximum use can be made of the available EEPROM capacity.

The AE56U enables to raise the maximum data transfer rate of MCU with on-chip USB controller from 1.5Mbit/s (low-speed) to 12Mbit/s (full-speed) by supporting USB 2.0 (Full Speed). The device also conforms to the ETSI TS 102 600 V7.0.0, as defined by the European Telecommunications Standards Institute (ETSI).

The E6000H full-spec emulator is available as a development tool.

The shipment format is wafers, but supply of thin-package versions is also under study.

Sample price for a minimum shipment (single wafer) is $2.90 per unit. Sample shipments will begin in June in Japan.

Renesas is one of the exhibitors at the 13th IIC-China 2008.

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