Question

Why is an oscillator used in the microcontroller?

Answer 1

Oscillator: It is a non-mechanical instrument for producing oscillating electric currents or voltages.

Microcontroller: In an embedded device, a microcontroller is a tiny integrated circuit that governs a certain task. On a single chip, a microcontroller contains a CPU, memory, and input/output (I/O) peripherals.

1. We need an oscillator in the microcontroller as any microcontroller needs a machine cycle.
2. Time signals are generated by the oscillator. In successive clock signals, all commands in any microcontroller are now extracted.
3. To generate these temporal pulses, an oscillator is used.
4. Assume we need to use the microcontroller to light an LED for 1 second. For this, the microcontroller needs to know that the 1-second limit has been passed.
5. The microcontroller uses the oscillator in this scenario as well, counting the number of pulses it generates in a second (specific in each case). As a result, you can keep track of how much time has passed.