Pic microcontroller architecture cpu cpu is not different from other microcontrollers cpu pic microcontroller cpu consists of arithmetic logic unit alu memory unit mu control unit cu accumulator etc we know that alu mainly used for arithmetic operations and taking the logical decisions memory used for storing the instruction which is to processed and also storing the instructions . Advantages and disadvantages of pic 16f877a what is pic and atmel microcontrollers difference or advantage the pic controller has many advantages over a 8051 the mainadvantage is the . The 16f877a is one of the most popular pic microcontrollers and its easy to see why it comes in a 40 pin dip pinout and it has many internal peripherals the only disadvantage that you could level at it is that it does not have an internal clock source like most of the other more modern pics. An introduction to pic microcontrollers advantages of pic o it is a risc reduced instruction set computer design o only thirty seven instructions to remember o its code is extremely efficient allowing the pic to run with typically less program memory than its larger competitors o it is low cost high clock speed. We generally recommend mikro c for pic compiler for beginners and mplab xc8 compiler for those who want to learn pic microcontrollers programming from register level bare metal concepts you can go through our list pic microcontroller compilers article for further details main features of pic16f877a microcontroller
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