You should connect the three input bits in parallel, and the fourth to one decoder and its negation to the other enable pin to switch the lower eight and higher eight outputs.Hi
I need to connect 2 decoders 3x8 (SN74LS138) to get a decoder 4x16 but I don't understand wich enable pin should be connected to join the IC. Could somebody help me?
That's only true if you actually LEARNED something, instead of just finding a solution that you can copy down and turn in and move on to the next problem. If the latter is the case, then all that happened is you've dug yourself a deeper hole.This thread is 12 years old. I was four when it was created. However, whoever you guys are, you just saved my ass in my logic design class. So thank you.
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