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https://e2e.ti.com/support/logic-group/logic/f/logic-forum/1448843/sn74axc2t245-pin-status-b1-and-b2-when-vcca-is-open
工具与软件：
团队成员、您好！
当与 IC 的连接如下图所示时、B1和 B2是否处于高阻态？
此致、
Shotaro
数据表显示：
VCC 隔离特性的设计可确保当 VCCA 或 VCCB 低于100mV 时、I/O 端口均禁用其输出并进入高阻抗状态。
