The fun part about logic gates is that there are so many ways to make them, with each approach having its own advantages and disadvantages. Although these days transistor-transistor logic (TTL) is … ...

When the integrated circuit was invented in 1958, it eclipsed the four-layer diode's capabilities and any market for the diode quickly dried up. Four-layered semiconductors are, however, used today.

The transistor turnson, and the logic-zero voltage at thecollector is approximately 0.6+V L +V CE,where V L is the low voltage and V CE is the collector-to-emitter voltage.When inputs A and B are at ...

Although these days transistor-transistor logic (TTL) is the most common, diode-transistor logic (DTL) once was a regular sight, as well as diode-resistor logic (DRL).