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您好,TI官网购买的是正规渠道,通常性能都是能保证的。如果在使用过程中有问题的,是有专门的售后支持的。
下面这个链接是一旦芯片有问题的,故障分析以及样品退回申请的链接:
https://www.ti.com.cn/zh-cn/support-quality/additional-information/customer-returns.html