While RTL is a possible choice, DTL circuits (diode-transistor logic) are both easier to design and more efficient from the POV of power consumption. DTL circuits can also be faster, especially when implemented with Schottky diodes, which should be the normal choice for them.
DTL circuits are composed of transistors used as inverters and of diode circuits that are either minimum circuits a.k.a. AND or maximum circuits a.k.a. OR.
When considered as min/max circuits instead of and/or, they can work even with a multi-level logic, not only with binary logic.
DTL circuits are composed of transistors used as inverters and of diode circuits that are either minimum circuits a.k.a. AND or maximum circuits a.k.a. OR.
When considered as min/max circuits instead of and/or, they can work even with a multi-level logic, not only with binary logic.