Hi everyone, I've been stuck in a project and I really need to use 3 input OR gate, and also a 4-input OR gate, do you know which component to use ?

 

Hello,

Do you use CMOS in your circuit?
Then the 4075 would do for the 3-input OR.
The 4072 would do for the 4-input OR.
Here is an overview of the 4000 series, wich are CMOS:
https://en.wikipedia.org/wiki/List_of_4000_series_integrated_circuits

Bertus

 

Thanks @bertus for the reply, I have made a more deep research and I found what I need, here are the gates with numbers:

 

Thanks @bertus for the reply, I have made a more deep research and I found what I need, here are the gates with numbers:

What library did you find those in?

 

What library did you find those in?

just search in Master Database Library -> All Groups:

 

just search in Master Database Library -> All Groups:

Thanks. I was looking for CD40xxx.

 

Thanks. I was looking for CD40xxx.

Welcome