FIG. 2-2 is a gated circuit composed of the AND gate, the gating circuit is widely used in digital instruments, for example when it is desired to use one control signal to another signal, gating circuit should be employed, which is a The most basic control circuit.
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In Figure 2-2(A), the AND gate has two input terminals A and B. A is the input gating signal, and B is the input controlled signal. Then the signal Q generated at the output of the AND gate must be in accordance with the AND. Logic. That is, only when the gate signal A is high
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