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SN74HC245NSR 芯片丝印 HC245 以外信息的解读,感谢支持



现在有两盘物料,  芯片上信息如下:   6BC9H6KG4 HC245; 6BC9J1KG4 HC245,    现在想了解下  6BC9H6KG4   和6BC9J1KG4 该大概如何解读,请TI的工程师帮忙,谢谢