If someone can guide me along here and let me know if I'm on the right path. Let me start by saying I am a beginning CE student and have made sense of everything I have dealt with this semester up to sequential logic which seems to be throwing me for a loop no pun intended. I know this is too general of a statement, and to narrow things a bit further I'm having difficulty implementing some circuits on paper.
I have gone through some of the free material here along with text book and back over lecture notes etc. and still feel a bit unsure as to how to attack circuit problems. Most of the individuals on the forum seem to be gurus in this field and any advice you might offer would be greatly appreciated.
Now for my questions in particular, I can get my drawings up to help make more sense of things if just listing how I plan on going about things is a bit hard to picture.
First: I have 74F189 (X2) chips along with a decoder and need to convert these 3 into a 32X4 RAM circuit.
My thoughts: I will have a 3-to-8 decoder with inputs A0, A1, A2. And outputs running to A0, A1, A2, A3 on the first chip & the remaining 4 outputs from the decoder running to A0, A1, A2, A3 on the second chip. Connect the data lines D0 with D0, D1 with D1, D2 with D2, D3 with D3 from the first chip to the second and similarly connecting the data outputs in a similar fashion O0 with O0, O1 with O1, ...
Second: I have 74F189 (X4) chips along with a decoder and need to convert these 5 into a 32X8 RAM circuit.
My thoughts: Much like above although this time I will use my 3-to-8 decoder with inputs A0, A1, A2. And outputs running to A0, A1, A2, A3 on the first/second chip & the remaining 4 outputs from the decoder running to A0, A1, A2, A3 on the third/fourth chip. Connect the data lines D0 with D0, D1 with D1, D2 with D2, D3 with D3 from the first chip to the second and similarly connecting the data outputs in a similar fashion O0 with O0, O1 with O1, ... I will connect the data lines D0 with D0, ..., D3 with D3 from the third chip to the fourth and similarly connecting the data outputs in a similar fashion O0 with O0, O1 with O1, ...
Any thoughts on any of this would be greatly appreciated. And again I can get pictures of my designs if it will make things a bit more clear on how I plan on going about these circuits.