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Fujitsu Microelectronics Europe offers the smallest microcontroller in the world with a full CAN interface
Fujitsu Microelectronics Europe has developed the MB90F387, a powerful Flash CAN microcontroller, housed in a minute 48-pin enclosure with plastic encapsulation measuring only 7 mm square. The device is believed to be the smallest microcontroller in the world with a full CAN interface.
London, October 25 2001 -- Fujitsu Microelectronics Europe has developed the MB90F387, a powerful Flash CAN microcontroller, housed in a minute 48-pin enclosure with plastic encapsulation measuring only 7 mm square. The device is believed to be the smallest microcontroller in the world with a full CAN interface.
Adopting the peripheral blocks and the CPU of the 64-pin 16-bit 64KB MB90F497G microcontroller, which is already in worldwide use, Fujitsu implemented a die shrink, which enabled the same number of gates to be integrated within the smaller housing at reduced cost.
Contrary to the normally cost-driven practice of applying new manufacturing technology to the largest and most complex chips first, Fujitsu opted to develop devices at the low end of the companys 16LX series 16-bit microcontroller range at the same time as high-end devices. These important low-end microcontrollers offer powerful yet inexpensive options.
From this new device, right up to the upper end of the family, currently represented by a chip integrating 384KB of Flash memory and 10KB of RAM in a 120-pin package, the Fujitsu 16LX series covers a unique spectrum, with as many as 12 devices featuring full CAN interface and embedded Flash in addition to a large number of mask ROM variants.
All family members of 16LX microprocessors feature 16-bit architecture, combining 2MB of address space with high code efficiency, thereby saving memory costs. The CPU incorporates on-chip PLL, a 4 byte instruction queue and multiplication and division instructions. Around the CPU are a 10-bit analogue-to-digital converter, a Flash macro with integrated charge pump for rewriting the memory without auxiliary voltage and a CAN module. The CAN 2.0A and 2.0B compliant module is available with 8 or 16 buffers, which can be programmed individually for receiving or sending data.
Identifiers with a length of 11 or 29 bits can be selected in a variety of ways: comparison of all identifier bits, complete mask comparison or comparison with one or two mask registers.
In addition, the MB90F387 is equipped with a UART, various timers, an input capture unit and a programmable pulse width modulation generator. An interrupt line is linked internally with the CAN module to allow easy awakening of the microcontroller via CAN. Four additional interrupts are available externally and a 32 kHz sub-clock can be used to generate a time base and expand the power management options.
First samples of the new Flash CAN chip are anticipated to be available in December 2001. A mask ROM variant is planned for the second half of 2002.
This microcontroller will be the lowest-priced in the 16LX range and is probably the lowest-priced of all 16-bit microcontrollers with CAN currently available.
....ends (Ref: PR736)
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