2 ms·
Logic circuits are frequently modeled with four states: 0, 1, X, and Z. X means unknown, or "don't care" in some contexts. Z usually means high impedance.
by zerohp 12y ago
Logic circuits are frequently modeled with four states: 0, 1, X, and Z. X means unknown, or "don't care" in some contexts. Z usually means high impedance.