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https://e2e.ti.com/support/logic-group/logic/f/logic-forum/1328146/sn74hcs164-vih-vt-max-and-vil-vt--min-under-vcc-5v
团队成员
VCC = 5V 时 VIH (VT VIL+最大值)和 VIL (VT 最小值)如何？ 期待您的见解、谢谢！
数据表将4.5V 电源电压的最坏情况指定为5V±10%电源电压时的值。
假设您的电源的容差为0 %、使用该 VT−值、并将 VT +值增加0.5V。
