Question

The output frequency for an 8-bit Johnson counter is ......... if the applied input frequency is 256 GHz.

• A. 128 GHz
• B. 64 GHz
• C. 128 MHz
• D. 256 MHz

Hint:

In a Johnson counter, the output frequency is always half of the input frequency.

Answer 1

The Correct Option is A

Step 1: Understanding the Johnson counter.
In an 8-bit Johnson counter, the output frequency is half of the input frequency.

Step 2: Calculate the output frequency.
Given the input frequency of 256 GHz, the output frequency will be: \[ \text{Output Frequency} = \frac{\text{Input Frequency}}{2} = \frac{256 \, \text{GHz}}{2} = 128 \, \text{GHz}. \]
Final Answer: \[ \boxed{128 \, \text{GHz}} \]