ADVANTAGES AND DISADVANTAGES OF 8051 MICROCONTROLLER

ADVANTAGES AND DISADVANTAGES OF 8051 MICRO-CONTROLLER

ADVANTAGES

• The hardware is less because of single chip microcomputer system. This reduces the cost.
• Because of less hardware, the PCB size is small.
• It increases system reliability.
• They have smaller access time. Hence, speed of operation is high. 
• It is easy to use, troubleshoot and maintain.
  
• Most of the pins can be programmed by the user in order to perform different functions.
• Micro-controllers have inbuilt serial ports, timer and counters, RAM, ROM, A/D converters, flash memory.
• Micro-controller consume less power.

DISADVANTAGES

• The micro-controllers have a complex architecture than that of a micro-processor. Hence, it is difficult to understand their functionality.
• As micro-controllers are RISC micro-controllers, the length of program is big.
• Only a single WREG/A is present.
• They cannot access the program memory.
• The micro-controller cannot be directly interfaced with high power devices.