Question

There are __ ADC and __ PWM Pins on the Atmega328.

(a) 9, 7

(b) 8, 6

(c) 10, 1

(d) 5, 18

I have been asked this question in unit test.

I want to ask this question from Microcontroller Specifications topic in division AtMega Microcontroller Specifications of Arduino

Answer 1

The correct answer is (b) 8, 6

To explain I would say: The Atmega328 has 8 ADC Pins and 6 PWM Pins, which are to be connected to the ADC that’s built in to the Arduino Uno and the PWM pins provide Pulse Width Modulated output since a digital circuit like a microcontroller cannot provide a perfect analog wave.