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: Johnson Counter Basics.
An 8-bit Johnson counter's output frequency is one-half the input frequency.

Step 2: Output Frequency Calculation.
With a given input frequency of 256 GHz, the output frequency is computed as follows: \[\text{Output Frequency} = \frac{\text{Input Frequency}}{2} = \frac{256 \, \text{GHz}}{2} = 128 \, \text{GHz}.\]
Answer: \[\boxed{128 \, \text{GHz}}\]