Applications
Diode logic gates are used to build diode–transistor logic (DTL) gates as integrated circuits.
The outputs of conventional ICs (with complementary output stages) must never be directly connected together since they act as voltage sources. However, diodes can be used to combine two or more digital (high/low) outputs from an IC such as a counter. This wired logic connection can be a useful way of producing simple logic functions without using additional logic gates.
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