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https://e2e.ti.com/support/logic-group/logic/f/logic-forum/942270/sn74ahc1g08-the-input-impedance-in-no-power-status
你(们)好
如果 VCC 为0电压。
输入是否保持高阻抗？
我担心输入阻抗会影响 MCU 的驱动能力。
是的；请参阅 [常见问题解答]我的逻辑器件的输入电压(VI)是否可以高于电源电压(Vcc)？
