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CD54HC00: CD54HC00F和CD54HC00F3A有什么区别?是一样的吗?

Part Number: CD54HC00

CD54HC00F和CD54HC00F3A有什么区别?是一样的吗? 规格书里并没有提及他们的区别

另外SN54HC00J和CD54HC00F3A是一样的吗?官网说SN54HC00J等同于8403701CA,而规格书里CD54HC00F3A还有8403701CA标志

SNJ54HC00J