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8bit MCUs target motor control apps

Posted: 03 Oct 2011 ?? ?Print Version ?Bookmark and Share

Keywords:8bit MCU? brushless motor? voltage comparator?

Fujitsu Semiconductor Asia Pte Ltd has unleashed eight models of 32-pin MCUs as extension of its F2MC-8FX family. The 8bit MB95630 series has a DC brushless motor controller and an analog voltage comparator, making it ideal for motor control applications, the company noted.

The device can be used as a main MCU as well as a sub-MCU to supplement function insufficiency in existing system configurations. The 1-wire on-chip debug module embedded in the chip allows occupation of only one pin when a program is being debugged and this will benefit customers in their product development. The product also uses a high precision CR oscillation circuit that can be used as the source clock of the MCU system, thereby reducing the number of external components required for product development.

Fujitsu Semiconductor plans to provide samples of the MB95630 series from late September this year with the samples priced at $1 each.

MB95630 series

The products can generate three-phase PWM waveform output to drive the motor. The DC brushless motor can be applied to the air-conditioning fan motor and the PC cooling fan motor, among other applications that include office equipment such as fax machines.

The MB95630 series has eight levels of power saving modes to balance MCU performance and power consumption. Application of the deep standby mode enables power to be cut off from the flash unit in order to decrease power use.

Due to the embedding of high-performance flash, programs that are in the process of executing can be rewritten, the company stated. The chip's security function can prevent illegal access from external parties, therefore avoiding leakage of customers' software assets. Additionally, emulation of the EEPROM function is also available.

As an updated version of the 95330H series, it is pin-to-pin compatible with the 95330H series. Samples will be available from late September 2011 and shipment will start January next year.





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