74LS90 act like 4017 counter

Thread Starter

laguna92651

Joined Mar 29, 2008
101
How can I configure a 74Ls90 to act like a 4017 decade counter. I don't want BCD out want one single pulse per clock, I only need to count to 4.
 

Wendy

Joined Mar 24, 2008
21,930
A 7490 is a BCD counter, it counts 0-9 in binary.

A 4017 has 10 outputs, that count sequentially, 1 pin per number.

They are not very similar.
 
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