8051 Microcontroller Ports Quiz

There are 4 I/O ports, each with 8 pins, which can be configured as input or output. (correct)

There are 8 I/O ports, each with 4 pins, which can be configured as input or output.

There are 4 I/O ports, each with 8 pins, which can only be configured as output.

There are 4 I/O ports, each with 8 pins, which can only be configured as input.

The pin acts as if it 'floats', with unlimited input resistance and indeterminate potential. (correct)

The pin acts as an 'open drain', allowing external output to float.

The pin is connected to a pullup resistor.

The pin is connected to ground (0V).

The pin is connected to a pullup resistor.

The pin acts as an 'open drain', allowing external output to float.

The pin acts as if it 'floats', with unlimited input resistance and indeterminate potential.

The pin is connected to ground (0V). (correct)

<p>The pin acts as an 'open drain', allowing external output to float.</p> Signup and view all the answers

<p>The pin needs to be connected to a pullup resistor.</p> Signup and view all the answers