Renesas Technology Europe has announced the SH72531, a 32-bit MCU designed for powertrain control of automobile engines and transmissions. The device features a high-speed operation of up to 120 MHz and 1.25 megabytes of on-chip high-speed flash memory.
The SH72531 is built around the SH-2A high-performance 32-bit CPU core and uses a 90-nanometer (nm) process node. It achieves a processing performance of 240 million instructions per second (MIPS) when operating at 120 MHz. This enables fine-grained and sophisticated real-time control of engine or transmission systems. It supports 120 MHz operation at temperatures up to 125°C, something that is difficult to achieve in a Flash MCU while power consumption is 350 mW or less.
Typically, due to their method of operation, flash memories have a lower maximum operating speed than the logic block. Nevertheless, the SH72531 incorporates flash memory design technology exclusive to Renesas Technology to achieve a flash memory operation speed of 100 MHz. In addition, a low-power cache circuit optimized for the flash memory reduces power consumption when data from the on-chip flash memory is used for processing and delivers performance roughly equivalent to single-cycle access at an operating speed of 120 MHz.
Furthermore, 32 kilobytes of on-chip flash memory is allocated for data storage and can be overwritten while the MCU is operating. It provides roughly the same functionality as electrically erasable and programmable read only memory (EEPROM). This eliminates the need for external memory to store data and contributes to reduced system cost overall.
By specifically selecting the on-chip peripheral functions based on actual requirements, it was possible to fit the SH72531 into a compact 176-pin LQFP package, in contrast to the 272-pin P-BGA of its predecessor, the SH72544R. In spite of its low pin count, the SH72531 integrates key functions and interfaces needed for engine and transmission control applications, including the Advanced Timer Unit III (ATU-III) multifunction timer unit, a high-speed 12-bit A/D converter, a CAN*1 interface, and a high-speed serial interface. This enables highly precise real-time control.
Built around the same SH-2A CPU core as the earlier SH72544R, it provides a subset of the peripheral functions of the SH72544R. This means that software developed for the SH72544R can be reused when developing systems incorporating the SH72531, reducing the development time required.
The E10A-USB on-chip debugging emulator is available as a development tool. Compact in size, it runs off USB bus power and requires no external power supply.
For further information and reader enquiries:
Jasper Credland, Renesas Technology Europe Ltd., Dukes Meadow, Millboard Road, Bourne End, SL8 5FH
Tel: +44 (0)1628 585163
Fax: +44 (0)1628 585180
About Renesas Technology Corp.
Renesas Technology Corp. is one of the world's leading semiconductor system solutions providers for mobile, automotive and PC/AV (Audio Visual) markets and the world's No.1 supplier of microcontrollers. It is also a leading provider of LCD Driver ICs, Smart Card microcontrollers, RF-ICs, High Power Amplifiers, Mixed Signal ICs, System-on-Chip (SoC), System-in-Package (SiP) and more. Established in 2003 as a joint venture between Hitachi, Ltd. (TSE:6501, NYSE:HIT) and Mitsubishi Electric Corporation (TSE:6503), Renesas Technology achieved consolidated revenue of 951 billion JPY in FY2007 (end of March 2008). Renesas Technology is based in Tokyo, Japan and has a global network of manufacturing, design and sales operations in 17 countries with 26,800 employees worldwide. For further information, please visit http://www.renesas.com
Headquartered in Buckinghamshire, UK, Renesas Technology Europe has offices in Denmark, Finland, France, Germany (3 offices), Italy, Spain, Sweden and Turkey, and representation via related companies in the Czech Republic, South Africa, Russia and Israel.
In Europe, Renesas focuses on automotive (control, networking, infotainment), wireless (GSM, CDMA and Bluetooth), smart card and microcontroller applications such as white goods, motor control, metering, energy management, building security and healthcare. It employs over 150 engineers to develop solutions for the European market and to assist customers with application development. Renesas is a leading supplier of smart card ICs in Europe. Europe is the world’s largest market for automotive electronics and microcontrollers, and is the region of most design influence for wireless electronic products. Feedback from customers in Europe has great influence on Renesas’ product development.
Note: The above text is the public part of the press release obtained from the manufacturer (with minor modifications). EETimes Europe cannot be held responsible for the claims and statements made by the manufacturer. The text is intended as a supplement to the new product presentations in EETimes Europe magazine.