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SN74LVC2G14: 输入端信号电平

Part Number: SN74LVC2G14

采用SN74LVC2G14DBV,该芯片供电电压采用3.3V,两个输入端(1A、2A)均接收外部5V电平信号输入(信号电平不是3.3V),请教一下,这么使用允许吗?