This is digital logic question. I think it's alright to post it here.
I'm trying to implement a 4 to 16 decoder using 2 to 4 decoder and 3 to 8 decoder.
What I did, I used 2x of 2-to-4 decoder and 1x 3-to-8 decoder. But I think there is a mistake in the 3-to-8 part. I hope you could point me out to it.
Here is what I did,
Note that I couldn't continue writing the full table.