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https://e2e.ti.com/support/interface-group/interface/f/interface-forum/1072930/pca9535-unused-interrupt-pin
您好，
我对中断针脚有疑问。
如果该引脚不会用于应用，是否需要保持浮动状态，因为它是漏极开路？
此致，
蒂穆尔
未使用的输出可以保持打开状态；请参阅 [FAQ]如何终止逻辑设备的任何未使用的通道？
