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Implementation using NOR gates

#1
05-25-2024, 10:52 PM
You see how NOR gates let you whip up any logic you need without extra parts around. I built a simple NOT gate by hooking both inputs together on one NOR and it flips the signal right away. You can test this on paper first then move to hardware if it clicks for you. But maybe you wonder why this matters in bigger systems like processors. I think it simplifies designs a lot when everything stems from one gate type alone.
You connect two NORs in a certain way to get an AND function going strong. I tried that setup last week and it worked without any hitches at all. Or perhaps you want an OR gate instead and that takes just one NOR with inverters on the inputs. I show this to juniors like you because it builds real understanding fast. Then you add more gates to form XOR for addition tasks in arithmetic units. It feels tricky at first but you get the hang after drawing a few versions yourself. Also I notice how this approach cuts down on chip variety in actual builds.
You might explore latches next since they store bits using crossed NOR gates in a loop. I explain the set and reset actions by tracing signals through the circuit step by step. But the feedback creates stable states that hold data until changed. Perhaps you see how this forms the base for registers in a CPU core. I build on that idea to cover full adders made entirely from NOR combinations. You end up with carry logic that propagates correctly across bits. Then flip flops come from adding clock control to those latches for timing sync. It keeps designs uniform and easier to debug when faults pop up.
You gain insight into why universal gates matter for scaling to complex ALUs or memory arrays. I connect the dots by showing how basic NOR combos scale into multiplexers for data routing. Or maybe you experiment with minimizing gate counts in your own sketches. It leads to efficient layouts that save power in real chips. You notice the patterns repeat across different functions too. I keep coming back to these basics because they unlock advanced architecture questions. Perhaps you try implementing a small counter this way to see the flow.
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ron74
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Joined: Feb 2019
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Implementation using NOR gates

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