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And thank you for teaching me how to ask questions here: Post as datzsheet guest Name. Or, better yet, can you complete this truth table?: Thanks so much for the answer.
I’m not doubting your answer – I just don’t understand why: Tut yes, you’re right, forgot the ’06 was inverting. I’m thinking that I can just use a ?
You should include a truth table. If they’re not both high or low at the same time It’s unconventional, but clear what you meant in your question now.
The comment was really more for the OP’s benefit to help him work out his logic. What you are doing with the two outputs is not okay.
It is not clear under what conditions you want to enable the Micro-Kim expansion port. You are right – didn’t think about that combination: No that won’t work.
I’m a noob here. The has open-collector outputs. Dtaasheet don’t think it’ll fry anything, but since s aren’t open-collector gates, if you connect two outputs together and they’re not both high or low at the same time, the output logic level will be undefined and can’t be guaranteed to be either a 1 or a zero.
7404 – 7404 Hex Inverter Datasheet
You should combine them with some sort of logic function eg ‘Or”And’ or similar. Will that fry the N? Basically if one of them wants to be datasheey and the other wants to be low, they will compete and force limiting currents through each other, very likely damaging them, because you cannot guarantee in any case that they will go high or low at the same time, since then you’d have to tie both inputs together as well.
Is it OK for the output pins to be high? I will connect two Yx pins to two two separate input pins on the N.
Icy 2, 5 If both outputs are 1 5V wouldn’t they combined still be 5V? I want to use the N together with a 74LS to do memory address decoding.
Tying the two outputs together in this fashion is called a ” wired-or ” or ” wired-and ” depending on the polarity of the signals the latter in this case, because the outputs of the ‘ are active low.
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digital logic – N and high output – Electrical Engineering Stack Exchange