Which family of microcontrollers offers a wide variety of internal peripheral interfaces?

• MSP430

• ARM

• AVR

• PIC

How many I/O ports does the ATmega328 have?

• 4

• 3

• 5

• 2

What is the voltage level considered as logic-high for input pins?

• Above 0.5 × VCC

• Above 1.5 × VCC

• Above 1.0 × VCC

• Above 0.7 × VCC

Which register determines the voltage level on an output pin when configured as an output?

• Direction register

• Status register

• Data register

• Control register

What is the purpose of enabling a built-in pull-up resistor on an input pin?

• To increase voltage

• To decrease voltage

• To generate PWM signals

• To maintain a known state

How many external interrupts can the AVR Core respond to?

• 4

• 3

• 2

• 1

What is the main distinction of Timer/Counter 1 compared to Timer/Counter 0?

• 16-bit counter

• 8-bit counter

• PWM outputs

• Input capture unit

What is the purpose of USART in microcontrollers?

• Digital to Analog Conversion

• Analog to Digital Conversion

• PWM Generation

• Serial Communication

What do the SDA and SCL pins of the I2C peripheral stand for?

• Signal Data and Clock

• System Data and Clock

• Synchronous Data and Clock

• Serial Data and Clock

How many analog inputs does the ATmega2560 provide?

• 8

• 16

• 4

• 12