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Old 12-28-2010, 09:34 PM
B-Sparkes B-Sparkes is offline
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Cool 7448 seven segment display!

A circuit converts a 4 bit binary input into a seven segment display output.

I have to use a 7448 and simulate the circuit using either multisimm or proteus.
also setting up a word generator to produce a count on the seven segment display from 0 to 9.
Attach a logic analyser to the output to display the count in timing diagram form. the

Connecting form the 7448 to the seven segment is not a problem but the rest I do not have a clue where to start is there any information that you or any body could share with me on this?



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Old 12-28-2010, 09:36 PM
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hgmjr hgmjr is offline
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If this is a class assignment then I will move it to the homework forum.

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Old 12-28-2010, 10:04 PM
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beenthere beenthere is offline
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A circuit converts a 4 bit binary input into a seven segment display output.
You might as well get the terminology correct - a 7448 is a BCD to 7 segment decoder. It has active high outputs, so it works with common cathode displays.
also setting up a word generator to produce a count on the seven segment display from 0 to 9.
A BCD counter would be the thing to use.
First comes the hardware, then the software.
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Old 12-28-2010, 10:44 PM
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marshallf3 marshallf3 is offline
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7446, 7447 & 7448 are specific to the displays, if you Google the part number with the word circuit after it you'll find a multitude of examples as you will with their individual datasheets which are also often filled with simple circuits &/or references to application notes.
The very first course in engineering school should be how to use Google and Wikipedia
I very often misspell or miss things while making posts so come back and double check a few times.
I also have a full time job and often 10 projects going on at the same time so I'm not always online.
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