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A microcontroller differs from a microprocessor chiefly in that it

  • A.executes instructions at a much higher clock rate
  • B.cannot be programmed in a high level language
  • C.requires no external supply decoupling or reset circuit
  • D.includes memory and peripherals on the same chip

Answer: D

The processor core may be identical; what makes it a microcontroller is having flash, RAM, timers, converters and serial ports in the same package. That integration is what lets a product be built round a single device and a handful of passives.

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