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Fujitsu expands microcontroller line with 32-, 16-bit devices

Posted: 26 Apr 2002 ?? ?Print Version ?Bookmark and Share

Keywords:mb91f365g? mb91f366g? mb91360g? mb90f394g? mb90f390g?

Fujitsu Microelectronics America Inc. has expanded its microcontroller product line with the addition of two 32-bit microcontrollers with FULL-CAN bus interfaces and single voltage Flash memory, and a 16-bit version based on the company's 16LX processor core.

The MB91F365G is designed for automotive, industrial and other space-constrained, single-chip applications that operate without an external bus interface. These designs typically require two CAN buses, motor control, and standard peripheral functions such as diverse serial interfaces, timers, and input-capture/output-compare capabilities.

The MB91F366G provides the same functionality as the MB91F365G, but provides a 32kHz clock input for real-time clock reference, and a calibration unit instead of a DAC.

Both MCUs are built around the company's FR architecture that features a five-stage pipelined RISC core with 16 general-purpose registers and internal Harvard structure. The core is has 16KB of data RAM and a bit search unit.

The core also contains 512KB of embedded Flash ROM where the program code and constant data are located. The ROM offers a minimum of 10,000 write/erase cycles and can be programmed using a serial link or via parallel programmers. The ROM offers a minimum 10,000 write/erase cycles.

The MCUs integrate a clock modulator unit which reduces noise and electromagnetic emission.

Both devices can be ported for the OSEK OS and share the same software modules with the company's MB91360G series of MCUs.

The MB91F365G and MB91F366G are available in 120-pin QFP casings and are priced beginning at $19.80 each in 10,000-unit quantities.

The company has also announced the availability of the 16-bit MB90F394G, which features Fujitsu's 16LX processor core and a CPU cycle time of 50ns.

A member of the MB90390G MCU series, the MB90F394G also incorporates a clock modulator circuit and dashboard-specific peripherals, including a sound generator, an 18-bit time-base timer, and high current output ports that can directly drive six stepper motors.

The device also has an integrated 384KB to 512KB of Flash memory that requires no additional programming voltage and offers a write/erase life of 10,000 cycles. The MCU also provides 96 I/Os, interfaces to off-chip peripherals through two full CAN interfaces, one serial I/O, and three UARTs, including a special LIN UART.

The timer structure of the MB90F394G includes six channels of programmable pulse generators, six input capture units, eight-channel output compare and six additional PWM channels with slew rate control for the high current output ports.

The MB90F394G comes in a 120-pin package and is quoted at $9.35 each in 10,000-unit quantities.

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