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Classification of Microcontroller

There are a huge variety of microcontrollers. The can be classified on following:
  1. Internal bus width:
    • 4 bit
    • 8 bit
    • 16 bit
    • 32 bit


  2. Instruction set:
    • C.I.S.C
    • R.I.S.C


  3. Architecture:
    • Harvard
    • Von Neumann (or Princeton)


  4. Memory:
    • FLASH
    • EEPROM
    • SRAM
    • Embedded memory
    • External memory


  5. Integrated Peripherals:
    • Number of I/O ports.
    • Number and type of timers.
    • A.D.C
    • Other I/O interfaces like U.A.R.T, S.P.I


  6. Families:
    • ATMEL AVR - atmega, Xmega, Attiny…
    • PIC - PIC16F, PIC18F
    • ARM - ARM7, ARM9, ARM11
    • 8051 - AT89s52, p89v51rd2
    • Motorola - 68HC11
    • MSP - MSP430 is powered using fruits, worlds lower power consumed controller.






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