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MCU boasts 200MHz operation, 2.5Mbyte on-chip flash

Posted: 10 Jul 2008 ?? ?Print Version ?Bookmark and Share

Keywords:flash MCU? flash memory? automotive application?


Renesas Technology Corp. has released the SH72544R SuperH family MCU featuring high-speed operation of up to 200MHz and a high-speed, large-capacity 2.5Mbyte on-chip flash memory.

Designed for control of automotive engine and transmission systems, the SH72544R can achieve operation at high-temperature environments of ambient temperatures up to 125C.

In August 2007 Renesas announced the SH72546RFCC software development MCU as the industry's first on-chip flash memory MCU fabricated using a 90nm process. This device, designed for power train control, operated at 200MHz, and featured a high-speed, large-capacity 3.75Mbyte on-chip flash memory.

The SH72544R is the first mass-production version based on the SH72546RFCC and is fully compatible with the SH72546RFCC's functions, package, and pin assignment. This means that users can directly use the system hardware, programs, and other design assets they have developed using the SH72546RFCC.

The SH72544R incorporates the high-performance SH-2A CPU core, which achieves 400 MIPS at 200MHz and is optimal for real-time processing. The device also includes a 128Kbyte EEPROM function area that allows data to be rewritten during MCU operation. Since this obviates the need for the external EEPROMs that were previously used, it can contribute to reduced costs in application systems.

Furthermore, the SH72544R includes a set of peripheral functions that are appropriate for engine control applications and are fully compatible with the SH72546RFCC peripheral functions. The ATU-III provides functions that are effective for use in both engine and transmission control. In particular, it includes 32bit input capture/output compare, one-shot pulse output, pulse-width modulation output, and can provide up to 106 pulse outputs.

The devices' 12bit ADC features 37 input channels and can rapidly convert analog data from a number of sensors. The SH72544R also provides a set of communication interfaces, including an automotive network CAN interface and high-speed serial interfaces that can connect to external devices. These peripheral functions and interfaces can reduce component costs.

The SH72544R is available in a 272-pin P-BGA package (21mm x 21mm) and is fully pin compatible with the SH72546RFCC. The E10A-USB compact on-chip debugging emulator, which is powered from the USB bus and thus requires no external power supply, can be used as a development tool. Sample shipment begins this month in Japan.

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