8-Bit MCUs Target Sensing Applications with Focussed Feature Set

The 8-bit MC9S08SE8 from Freescale Semiconductor creates a new entry point for MCU-based designs, starting at 4kbyte Flash and offering features optimised for sensing and measurement functions.

On-chip peripherals include two 16-bit timers, which can each be configured for capture, compare or PWMto support a variety of functions. In addition, a Real-Time Interrupt (RTI) timer supports versatile functionality, such as generating periodic interrupts, waking the CPU from Stop mode, or recording the time of day when combined with an external quartz crystal. An onboard analogue comparator and a full 10-channel, 10-bit ADC capable of simultaneous sampling allow these devices to be used in numerous sensing and measurement functions. The ADC module also contains a temperature sensor.

External communications are handled through a combination of a Serial Communications Interface (SCI) module, an 8-channel Keyboard Interrupt (KBI) module that can be used to implement a simple keypad/keyboard system, and up to 24 GPIOs. Enhancing flexibility, the MC9S08SE family also has an Internal Clock Source (ICS) supporting multiple clock sources including the internal 32kHz oscillator or an external oscillator.

 

FEATURES 4kbyte or 8kbyte Flash 512byte SRAM Watchdog module Reset controller Low-voltage detect module 16-pin and 28-pin package options

APPLICATIONS Industrial appliances Security systems Power supplies and battery chargers AC line-voltage monitors Industrial compressors

 

 

 

The DEMO9S08SE8 is available to members of the Future Board Club. To apply for the development board, and membership of the Board Club, go to www.my-boardclub.com/manf-offers.htm This offer is free and subject to qualification.

 

Freescale Semiconductor / MC9S08SE8