News Release from: Hitachi Europe
Edited by the Electronicstalk Editorial Team on 8 January 2003
MCU takes control of automotive systems
The latest 16bit single-chip microcontroller with on-chip Flash memory from Hitachi was developed specifically for use in automotive airbag and chassis control systems.
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The latest 16bit single-chip microcontroller with on-chip Flash memory from Hitachi was developed specifically for use in automotive airbag and chassis control systems. With a maximum operating frequency of 24MHz, the H8S/2628F offers higher performance and cost-effective functionality than previous devices that include a CAN interface for in-vehicle LAN. In addition, it incorporates a high-speed synchronous serial communication interface (SSU) with chip select for connection to other devices.
This enables it to offer improved high-speed communication with the growing number of peripheral devices in a car.
The H8S/2628F employs a 0.35um process and is based on the H8S/2000 CPU core, Hitachi's highest 16bit microcontroller which offers a minimum instruction execution time of 41.6ns (at an operating frequency of 24MHz).
In addition to on-chip CAN and SSU interfaces, it also includes a serial communication interface (SCI) and has 128Kbyte of F-ZTAT (flexible zero turn around time) on-chip Flash memory that can be programmed or erased using a single power supply, simplifying system development.
Its compact 100-pin package size enables the design of smaller high-performance airbag control systems.
The high-speed SSU interface with chip select supports data transfer of 8, 16 or 32bit units with a maximum transfer rate of 6Mbit/s.
This enables high-speed communication with other devices such as EEPROM or sensors.
The H8S/2628F incorporates HCAN (Hitachi Controller Area Network), which is compliant with the Bosch CAN version 2.0B active standard.
The CAN interface allows data buffer storage of 16 messages and offers a maximum communication speed of 1Mbit/s.
In addition, a built-in wake-up function makes it possible to restore the microcontroller to normal operation from the low-power standby mode (a necessity in systems designed to be installed in automobiles) using the CAN bus.
This enables it to reduce the external circuitry previously required.
The C compiler, assembler, linker, librarian, simulator and debugger for the existing H8S series is available for use as a software development environment for the H8S/2628F.
The E6000 real-time simulator is available as a hardware development environment.
The emulator used for the H8S/2612 series can also be used with the H8S/2628F.
Sample shipments of the new device will begin in February 2003 in Japan.
Additionally, mask ROM versions are being developed and volume production of the H8S/2628M (128Kbyte of on-chip mask ROM) and H8S/2627M (96Kbyte of on-chip mask ROM) is planned to start in March 2004 in Japan.
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