Fujitsu Semiconductor announced the expansion of its “New 8FX” family of high-performance 8-bit microcontrollers to include nine new products from the 48-pin MB95690 series, featuring brushless DC motor control functionality, and six products from the 64-pin MB95810 series, featuring analogue comparator technology. As low-cost and low-power microcontrollers, products from both series offer ‘right-sized’ solutions for a wide range of applications, including home appliances, home electronics, personal care products, power tools and office automation equipment.
Presented in a 48-pin package with 60 KB of built-in flash memory, the MB95690 series products are power-efficient microcontroller that not only includes brushless DC motor control functionality, but various timers and communications functions that are useful both for general-purpose applications and peripheral circuits. MB95810 series products offer up to 60 KB of flash memory capacity in a 64-pin package, and are also equipped with peripheral circuits, such as up to 12 channels of high-precision A/D converters and an analogue comparator with reference voltage. Both series also enable the use of fewer system components and can also run large-scale processing programs. One typical application is as a power-efficient system management microcontroller for system and power management.
A multi-pulse generator for DC motor control enables the generation of a three-phase PWM waveform for controlling a brushless DC motor. It can be used for a range of brushless DC motors. Since these microcontrollers feature an embedded internal CR oscillating circuit (running the operating clock), low-voltage detection circuit (for detecting voltage drops) and analogue comparator with reference voltage, this eliminates the need for an external oscillator, reset IC and operational amplifier and contributes to a reduction in external components. The CR oscillator has a precision level of ±2 per cent.
