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4 input OR gate

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KMoffett

Well-Known Member
I don't recall there being one. Maybe a 7423 or 7425 dual 4-input NOR, and using the second gate as an inverter to get one 4-input OR.

Ken
 

Grossel

Well-Known Member
Just use diodes
If interface between circuits is open collector, then just four diodes won't help. If it was a AND gate, it would possible help.

Another possible issue is whenever input voltage vould become illegal (somewhere between 2 to 4 volts, if I remember correctly).

But it might work between two ttl intercaces, but this must be tested out.
 

KMoffett

Well-Known Member
Not sure where the OP is, but if this is for a real project...in the USA, Mouser was the only one that I could find that listed it, and they had "call" for price which usually means only large, special orders.

I feel like we are talking to ourselves. yani07, where are you?

Ken ;)
 
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