You have a scope?! That's new information, isn't it?
So, what do you see on the scope?
Yea, I have a scope. Sorry I didn't mentioned before, I'm so pissed off because I ordered 2 new IC's.
Yesterday I got them.
Put on breatboard just to test them and I saw I have a problem like I described.
Checked several times does I done something wrong but not really found the problem.
So I decide to ask more people for watching what the hell did I don't do right.
It's a simple input - output stuff, nothing complicated...
Power supplay:I use the power from my bench power supply which is nice and clean without any noise.
I have a two channel scope.
CH1 is on the output pin of the IC, CH2 is on the VCC pin on the IC.
CH2 is clear and nice.
Here is a picture from my scope on the 1. gate of the IC:
On the same IC but on gate 3 or gate 4 there are no Hi-Lo with the same input setup.
On the same IC on gate 6 I have non-stop Hi with the same input setup.
I assume, this IC (one of that two I ordered) is bad, because only one gate is working.
On the 2. IC there on the 3. gate I have the same signal as on the 1. IC but the rising and falling edges are
take around 10mS to reach the Hi and Low state.
The other gates are not reacting or some of them sometime have some strange noise but without
any Hi-LOW stage.
I use always the same input setup as on the 1. IC where you can see the scoped signal...
Pls. send me a circuit if mine is not correct.
Thank you.