Decoder & Encoder

Thread Starter

lunita_chan

Joined Nov 10, 2010
3
Guys i have a problem, this is my problem :
1. how decoder 2 to 4 line work???
2. how decoder 4 to 10 line work???
3. how thumbwheel switch encoder a ganged 10 position BCD coded switch work???
Friends please help me, i need this information as soon as possible. Thx :)
 
Last edited:

Wendy

Joined Mar 24, 2008
21,848
Feedback and Suggestions Forum for providing feedback and suggestions about All About Circuits, including corrections to the e-book. This forum is not for getting help with technical questions.
I suspect a mod will be along to move this to a better location.
 
Guys i have a problem, this is my problem :
1. how decoder 2 to 4 line work???
2. how decoder 4 to 10 line work???
3. how thumbwheel switch encoder a ganged 10 position BCD coded switch work???
Friends please help me, i need this information as soon as possible. Thx :)
Its 2 input and producing 4 outputs If you checkout sn74139 ic it will have a truth table to help you out. The 4 to 10 decoder is a sn7442 ic check out this will help . for example if the count is 0 0 1 0 will equal count 2
 
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