在高阻抗状态，输出电压不改变。
输出是当（稀土）是高在高阻抗状态。
The output is in the high impedance state when the (RE) is high.
禁用时，输出切换到高阻抗状态，从而使得该路由矩阵设备和视频多路复用器ha4600的理想选择。
When disabled, the output is switched to a high impedance state, making the HA4600 ideal for routing matrix equipment and video multiplexers.
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