COMPUTER SCIENCE AND ENGINEERING
DIGITAL LOGIC
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
2
|
|
|
4
|
|
|
8
|
|
|
10
|
Detailed explanation-1: -8. How many different states does a 3-bit asynchronous counter have? Explanation: In a n-bit counter, the total number of states = 2n. Therefore, in a 3-bit counter, the total number of states = 23 = 8 states.
Detailed explanation-2: -It counts from 0 to 2 − 1. The block diagram of 3-bit Asynchronous binary up counter is shown in the following figure. The 3-bit Asynchronous binary up counter contains three T flip-flops and the T-input of all the flip-flops are connected to ‘1’.
Detailed explanation-3: -The 2-bit counter exhibits four different states, as you would expect with two flip-flops (22= 4). The fourth pulse it recycles to its original state (Q0=0, Q1=0). The term recycles; it refers to the transition of the counter from its final state back to its original state.
Detailed explanation-4: -1. How many natural states will there be in a 4-bit ripple counter? Explanation: In an n-bit counter, the total number of states = 2. Therefore, in a 4-bit counter, the total number of states = 2 = 16 states.
Detailed explanation-5: -2.An 8-bit counter would count from 0 to 255.