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您好,那要看3.3V IO口的门限电压要求。
比如AM26LS32A的单端输出Voh(min)=2.7V,Vol(Max)=0.4V,如果3.3V端输入Vih(min)<2.7V,Vil(max)>0.4V ,就可以直接连接。
那不行哦,如果要和3.3V IO接的话,AM26LS32A的输出电压是不能超过3.3V的。
AM26LS32A的供电是5V的,输出电压根据不同的Vid范围,输出有可能是超过3.3V的。