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SN74LVC1G175: 器件对输入信号的斜率要求有多高?

Part Number: SN74LVC1G175

见data sheet 6.3中有Δt/Δv输入上升下降速率,要求在5V供电时应不大于10nS/V,问题如下:

1、这个要求是否对所有的输入引脚都有效?还是仅仅针对CLK时钟引脚?

2、如果连接到D、CLK、CLR的电压上升下降速率低于该规格,会出现什么情况?