题目内容

数据选择器又称为多路选择器或多路开关电路,这种电路相当于一个单刀单掷选择开关电路,当有控制信号时,该选择器处于接通状态,传输数据,相当于开关的接通状态;当没有控制信号时,该选择器处于断开状态,此时不能传输数据。

A. 对
B. 错

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数据分配器与数据选择器的功能相反,它能将一个数据分配到许多通道电路中。

A. 对
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