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8bit MCUs pack brushless DC motor control function

Posted: 11 Mar 2010 ?? ?Print Version ?Bookmark and Share

Keywords:microcontroller? MCU? brushless DC motor control? flash memory?

MB95330H MCUs

Fujitsu Microelectronics Asia Pte Ltd (FMAL) has expanded its line-up of low pin count microcontrollers, for its F2MC-8FX family of high-performance 8bit MCUs with flash memory. The MB95330H series features a brushless DC motor control function, and starts with six new products tailored for consumer appliances and small electric tools, such as electric drills.

The new series enables formation of suitable three-phase waves for brushless DC motor control, for use ranging from pump motors in dishwashers, to air-cooling fans in PCs. MB95330H series features a brushless DC motor control function with only 32 pins and various timers for general-purpose and communication functions. This makes the devices suitable for use not only as a main MCU, but also as a sub-MCU, which covers lack of features of the existing system configuration.

The MCUs also embed high-performance flash memory which can be rewritten/read 100,000x even while running a program, and is guaranteed to retain the data for 20 years. Furthermore, a flash security function protects the customer's software from unauthorized external programming.

By embedding CR oscillating, a low-voltage detection circuit and watchdog timer, the microcontrollers successfully reduce required external components, such as an oscillator and reset IC. This helps to cut down customers' overall system cost.

In addition, the series employs one-line on-chip debug which uses only one pin on the microcontroller and embedded oscillation circuit, etc. These enable maximizing the number of pins to be used freely, and reduction of total system cost for customers.

Samples of the new series will be available from the end of March 2010, with mass-production in June 2010.





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