Which characteristic of IC in Digital Circuits represents a function of the…

Correct Answer

✅ Propagation Delay Time

Explanation

In digital ICs, the switching speed of a transistor affects how quickly the output changes after the input changes.

This characteristic is called:

✅ Propagation Delay Time

Definition

Propagation delay time is:

the time taken by a digital circuit or transistor to change its output state after the input has changed.

It depends on:

• transistor switching speed,

• charging/discharging of capacitances,

• IC technology.

Important Concept

Faster transistor switching: => smaller propagation delay.

Slower switching: => larger delay.

Example

If input changes from:
0 ---> 1

and output changes after: 10 ns

then: propagation delay = 10 ns