Question

Unused pins must never be left unconnected in their default state as inputs.

(a) true

(b) false

(c) cant be said

(d) depends on the conditions

This question was posed to me in my homework.

Question is taken from Digital Inputs, Outputs and Delays topic in chapter MSP430 Microcontroller of Microcontroller

Answer 1

The correct choice is (a) true

The explanation: Unused pins must never be left unconnected in their default state as inputs. This follows a general rule that inputs to CMOS must never be left unconnected or “floating”.