# MOD 32 even and odd counter using IC 7473

Discussion in 'Homework Help' started by penotskie, Oct 6, 2007.

1. ### penotskie Thread Starter New Member

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Can u help my pls? only the diagram for MOD 32 even counter and odd counter.. pls send me the diagram to my email add penotskie@yahoo.com...

2. ### techroomt Senior Member

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May 19, 2004
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i'm not sure what you are looking for. a counter made of flip flops, ic's, gates? what have you so far?

3. ### penotskie Thread Starter New Member

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Oct 6, 2007
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Do you have a diagram there? any kind of IC's, gates that can count even numbers...

4. ### penotskie Thread Starter New Member

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Pls help me.. diagram of a counter using flipflop or ic's that can count up to 31 and the output would be even numbers...

5. ### penotskie Thread Starter New Member

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Oct 6, 2007
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Pls help me.. diagram of a counter using flipflop or ic's that can count up to 31 and the output would be even numbers...

6. ### hgmjr Moderator

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How about if you just build a 0 to 15 binary counter and then always force the least significant bit (Bit0) of the output to be a zero. Bit0 from the 4-bit counter will be Bit1 of the output, Bit1 of the 4-bit counter will be the Bit2 of the output, Bit2 of the 4-bit counter will be Bit3 of the output and Bit3 of the 4-bit counter will be Bit4 of the output.

hgmjr

7. ### penotskie Thread Starter New Member

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hmm but i need 5bit binary counter... is a decoder needed for 5bit?

8. ### hgmjr Moderator

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This is 5 bits. Bit0 of the output is always the value 0. This insures that the output is even. Then the four bits from the 4-bit counter make up bits 1 thru 4 of the output.

hgmjr

9. ### penotskie Thread Starter New Member

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Do you have a diagram? because im a beginner with this counter.. i uses workbench..

10. ### hgmjr Moderator

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It is really very straightforward. Build a textbook 4-bit counter the output of which would be as follows

Code ( (Unknown Language)):
1.
2.
3. Output of 4-bit counter would look like this:
4.
5. BBBB DEC
6. 3210
7. ----
8. 0000  0
9. 0001  1
10. 0010  2
11. 0011  3
12. 0100  4
13. ...
14. 1100 12
15. 1101 13
16. 1110 14
17. 1111 15
18.
19. The next step would be to append a constant "0" and
20. promote the four outputs from the 4-bit counter.
21.
22. BBBB B  DEC
23. 4321 0
24. ------
25. 0000 0  0
26. 0001 0  2
27. 0010 0  4
28. 0011 0  6
29. 0100 0  8
30. ......
31. 1100 0 24
32. 1101 0 26
33. 1110 0 28
34. 1111 0 30
35.
36.
Does that make it clearer?

hgmjr

11. ### penotskie Thread Starter New Member

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Ok thanks.. I also need a diagram so that i can constract it in the workbench,, do you have a diagram for 5bit counter?

12. ### mrmeval Distinguished Member

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Jun 30, 2006
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A lot of people come here expecting someone to do their homework don't expect a complete response.

This is available on the main website add more flip-flops, this is a down counter and uses a trick to use less parts so may not be what you need.