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https://e2e.ti.com/support/isolation-group/isolation/f/isolation-forum/1378937/iso6741-supply-voltage-range
工具与软件：
当 VCC1=3.3V 且 VCC2 = 1.8V 时、ISO6741是否可以正常工作？
是否 处于不确定状态？ 否则、请参阅数据表中的原因： 1.89V < VCC1、VCC2 < 2.25V 和1.05V < VCC1、VCC2 < 1.71V 时通道输出为不确定状态
3.3V 和1.8V 都处于允许的范围内、因此这将起作用。
