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SN74HC165: 技术咨询

Part Number: SN74HC165

您好,

如下手册里内容,标黄色部分,注释2的意思是否是指当Vcc = 2V 时,Tt =1000nS 是否等于1000ns/V x (1.5V-0.5V)? 我理解的是应该算“from VIL max = 0.5 V to VIH min = 1.5 V”这个区间 而不是从0V到2V,也就是说当我Vcc=4.5V时,Tt=500 x (3.15-1.35)=900ns,不会损坏芯片是这样吗?只要我在1.35V以下,3.15V以上都是安全的?

如果我理解不对,还请麻烦帮忙解释一下,十分感谢~

是否有Vcc=5V的参数对照值?