Multiplexer ic's

udi_hakim · Apr 4, 2004

Hello,
I am building a project these days but i came into a problem.
I need a chip that has 1 digital data input, 3 select inputs and 8 outputs.
With the 3 select inputs i will choose which of the 8 output will output the digtal input.

Basicly its the exact oposite to the 74HC251...

Thanks :wink:

Russlk · Apr 4, 2004

Check out the MAX4598 and the CD74HC4052. These are analog switches, so they should work in either direction.

Roff · Apr 4, 2004

Do a Google search for "3-to-8 line decoder/demultiplexer".

udi_hakim · Apr 6, 2004

Ron H said:
Do a Google search for "3-to-8 line decoder/demultiplexer".

All the devices i found are decoders! it has no data input, only low or high logic level on the selected output pin...

udi_hakim · Apr 6, 2004

Russlk said:
Check out the MAX4598 and the CD74HC4052. These are analog switches, so they should work in either direction.

Analog switch won't do what i want

Roff · Apr 6, 2004

udi_hakim said:
Ron H said:

Do a Google search for "3-to-8 line decoder/demultiplexer".

Click to expand...

All the devices i found are decoders! it has no data input, only low or high logic level on the selected output pin...

Decoder/demultiplexers do exactly what you want. That's why they are called demultiplexers. :roll:
Here is a quote from the first page of the **broken link removed**:

The '238' can be used as an eight output demultiplexer by using one of the active LOW enable inputs as the data input and the remaining enable inputs as strobes. Unused enable inputs must be permanently tied to their appropriate active HIGH or LOW state.

.[/b]

Multiplexer ic's

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