Digital Circuit Logic Levels Explained | Generated by AI
Yes, that’s a solid analogy! In digital circuits like the SR flip-flop, “high” (logic 1) and “low” (logic 0) refer to voltage levels on the wires or signals.
- High (1): A voltage that’s sufficiently positive, often around 3.3V, 5V, or even higher (like your 4V battery example) depending on the circuit family (e.g., TTL logic uses ~5V as high). It’s enough to represent an “on” or “true” state.
- Low (0): Near ground potential, basically 0V (or very close to it), like the 0V in your battery setup, meaning “off” or “false.”
These aren’t super precise—there’s a small “fuzzy” range in between where the signal might not be reliably read as high or low—but in practice, it’s binary: powered up = 1, powered down = 0. For the SR flip-flop, applying a high voltage to the S input sets Q to high (1), just like flipping a switch to “on.”