3 ms·
There's a ton of places in modern silicon where a voltage represents far more than just on or off. From the 16 levels of QLC to the various PAM technologies use
by russdill 1y ago
There's a ton of places in modern silicon where a voltage represents far more than just on or off. From the 16 levels of QLC to the various PAM technologies used by modern interconnects
- hinkley 1y agoI’ve wondered any number of times if 4 level gates would be useful to increase cache memory in CPUs. They aren’t great for logic, but how much decoding would they need to expand an L3 cache?
- DiggyJohnson 1y agoWhat is PAM in this context?
- saxonww 1y agoPulse amplitude modulation
- DiggyJohnson 1y agoThanks. That’s a deep rabbit hole upon initial glances to say the least
- theamk 1y agoAnd the first thing you do to them is to convert them to binary. Look at any Ethernet PHY for example - you have that nice 5-level signal coming on.. and the first thing you do is feed it into AFE/ADC so you get digital signals that you can actually work with. So yes, in some specific situations, like Flash memory or interconnects, there are multi-level signals. But the computing itself is always binary.