Why is W=0 not included in the excitation table for counters?

Click For Summary
SUMMARY

The discussion centers on the design of a 3-bit up/down counter using T flip-flops and the reasoning behind the excitation table, specifically the exclusion of W=0 for the next state. Participants highlight the necessity of AND gates connected to the final multiplexer for proper state transitions. Additionally, the role of XOR gates in JK flip-flops is mentioned, indicating a need for clarity in understanding these components. The conversation emphasizes the importance of researching established resources for homework-related queries.

PREREQUISITES
  • Understanding of T flip-flops and their operation in counters
  • Familiarity with excitation tables for sequential circuits
  • Knowledge of multiplexers and their role in digital design
  • Basic concepts of JK flip-flops and their functionality
NEXT STEPS
  • Research the design principles of 3-bit up/down counters using T flip-flops
  • Study excitation tables for various types of flip-flops
  • Explore the function of multiplexers in digital circuit design
  • Learn about the operation and applications of JK flip-flops with XOR gates
USEFUL FOR

Electronics students, digital circuit designers, and anyone involved in designing or analyzing sequential circuits and counters.

Sinister
Messages
32
Reaction score
0
Hi guys.

I'm wondering if someone could explain why when trying to make a 3 bit up/down counter using T flip flops, there are two and gates connected to the final multiplexer ?

Can someone explain how you approach this?

And same with the JK Flip flop but with an xor gate.

I'm really confused on how you come up with this.

Thanks.
 
Engineering news on Phys.org
When doing a Google search on "3 bit up/down counter using T flip flops" it appears to be a homework problem. May I suggest you Google search those many sites and find your answers there?
 
When we are doing the excitation table for counters...why is the W=0 for the next state not included?
 

Similar threads

Why are Mod-10 & Mod-5 decade counters while Mod-6 & Mod-8 not?
  • · Replies 10 ·
Replies
10
Views
5K
Multiplexer as a Position Sensor: How?
  • · Replies 4 ·
Replies
4
Views
2K
Need help with a mod-6 counter using JK flip flops w/ control bit
  • · Replies 1 ·
Replies
1
Views
3K
Understanding D and JK Flip Flops
  • · Replies 5 ·
Replies
5
Views
5K
Synchronous Counter Mod-12 Up/Down Exercise
  • · Replies 1 ·
Replies
1
Views
4K
Up/Down Counter Not Counting Down
  • · Replies 4 ·
Replies
4
Views
3K
Synchronous 3-bit up/down counter
  • · Replies 2 ·
Replies
2
Views
6K
Designing Synchronous Counters - Up & Down Counting
  • · Replies 2 ·
Replies
2
Views
9K
ABC reference frame synchronous generator modelling in Ltspice
  • · Replies 1 ·
Replies
1
Views
3K
Help with Counter Wiring Problem Statement
  • · Replies 3 ·
Replies
3
Views
3K