2 to 4 converter IC?

M

MrUmunhum

New Member

• Mar 13, 2009

• #1

Hi group,

I need an IC or circuit that will take two pins input and make a 4 state output.
Something like this:

Code:

+-----------------+
| Input | Output  | 
+-------+---------+
|  A B  | 1 2 3 4 |
+-------+---------+
|  0 0  | 1 0 0 0 |
|  1 0  | 0 1 0 0 |
|  0 1  | 0 0 1 0 |
|  1 1  | 0 0 0 1 |
+-------+---------+

Any ideas?? Thanks for your time.

 

M

MrUmunhum

New Member

• Mar 13, 2009

• #2

OK I found the 74139 but it outputs lows and not highs.
I called it the wrong thing, should have called it a decoder or demultiplexer.

 

Last edited: Mar 13, 2009

blueroomelectronics

Well-Known Member

• Mar 13, 2009

• #3

You could use a CD4052 (or it's 74 version)

 

M

MrUmunhum

New Member

• Mar 13, 2009

• #4

that will work OK

Thanks Bill. My local store does not stock CD4052s but does have the CD4051s, which will work also.

 

Last edited: Mar 13, 2009

U

Ubergeek63

Well-Known Member

• Mar 13, 2009

• #5

it is called a decoder and you can find them in any logic familly and at almost any source.