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LOGO不一致

 你好,请问有没有人知道这两个器件为什么LOGO会不一样呢,这两个器件都是同一个产地的只是不同一个生产日期,但是我去寻找了同一个产地同一个年份生产的,同样的封装,但是芯片上面的logo却跟14生产批次的一样