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https://e2e.ti.com/support/logic-group/logic/f/logic-forum/1460334/sn74hc573a-input-voltage-vcc
工具与软件：
嗨、团队：
客户 ASK 输入为0~5V、VCC 为3.3V。 情况是否正常？ 输出为3.3V 应该没问题。
这是不允许的；请参阅 [常见问题解答]逻辑器件的输入电压(Vi)是否可以高于电源电压(Vcc)？
有些器件具有可过压输入端、例如 SN74AHC573。
