FEATURES OF MICROCONTOLLERS

• As all the peripherals are integrated into a single chip, the overall system cost is very low
• The product is of a small size as compared to the microprocessor based systems and is thus very handy
• The system design requires very little efforts and is easy to trouble shoot and maintain 
• As the peripheral are integrated with a mp, the system is more reliable
• Though a microcontroller have on-chip RAM,ROM & I/O ports, additional RAM,ROM,I/O ports may be interfaced externally if required
• The microcontrollers with on-chip ROM provides a software security feature which is not available with microprocessor based systems using ROM/EPROM
• All these features are available in a 40-pin packages as in 8-bit processor