Digital Concepts - Technical MCQs

Q1:

In a typical digital system, Logic 0 is 0V–0.8V, and Logic 1 is ________.

A 2–5V

B 2.5–5V

C 3.0–5.5V

D 3.5–5.5V

ANS:A - 2–5V

Actually digital circuits are made by transistors so in order to conduct transistor 0.7v is must(for Si) after that transistor conducts and there is output(high).

0 to 08 = low.

0.9 to 5 = high.