General Description

The devices are Flash Memory type 8-bit high performance RISC architecture microcontrollers.  Offering users the convenience of Flash Memory multi-programming features, the devices also  include a wide range of functions and features. Other memory includes an area of RAM Data  Memory as well as an area of true EEPROM memory for storage of non-volatile data such as serial  numbers, calibration data etc.

Analog features include a multi-channel 12-bit A/D converter and a comparator functions. Multiple  and extremely flexible Timer Modules provide timing, pulse generation and PWM generation  functions. Communication with the outside world is catered for by including fully integrated I2 C  and UART interface functions, two popular interfaces which provide designers with a means of easy  communication with external peripheral hardware. Protective features such as an internal Watchdog  Timer, Low Voltage Reset and Low Voltage Detector coupled with excellent noise immunity and  ESD protection ensure that reliable operation is maintained in hostile electrical environments.

A full choice of HXT, LXT, HIRC and LIRC oscillator functions are provided including a fully  integrated system oscillator which requires no external components for its implementation. The  ability to operate and switch dynamically between a range of operating modes using different  clock sources gives users the ability to optimise microcontroller operation and minimize power  consumption.

The inclusion of flexible I/O programming features, Time-Base functions along with many other  features ensure that the devices will find excellent use in applications such as electronic metering,  environmental monitoring, handheld instruments, household appliances, electronically controlled  tools, motor driving in addition to many others.