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TUSB3200与TUSB3200A 是否完全兼容?

TUSB3200与TUSB3200A 是否完全兼容?

之前使用的是TUSB3200,停产后换成TUSB3200A,从规格书上看,应该是兼容的,但是使用过程中出故障,通道数据感觉不一样.

有没有人遇到同类问题,原厂是否有人出来解释下呢,两颗料有什么差异?

另外现在TUSB3200A也停产了,用TMS320C5533AZHH10替代,这个料和前面的两个料又有哪些差异呢?替换的时候需要注意哪些地方?

  • 是的,TUSB3200与TUSB3200A 都已经停产了。关于TUSB3200A与TMS320C5533AZHH10的对比,TI有一个专门的wiki页面进行说明。您可以参考一下下面的链接:

    processors.wiki.ti.com/.../TUSB3200A_vs_TMS320C5533_Comparison
  • 那两个差异特别大,根本不是一回事的东西,这个是系统根据名字自动推荐的,并非正确的推荐。
  • the main problem we are facing is that the datasheet of TUSB3200 and TUSB3200A are nearly identical. If all info in the data sheet is correct, they can be replaced. So I understand why the distributor suggested it and why Nik has checked it like this – all info in the datasheet says it is OK.

    But when you use it, the channel assignment is different. For TUSB3200 it is like this:
    CH 1 -> 1
    CH 2 -> 3

    CH 3 -> 5
    CH 4 -> 7

    CH 5 -> 2
    CH 6 -> 4

    CH 7 -> 6
    CH 8 -> 8

    And for TUSB3200A it is like this, as it should be:
    CH 1 -> 1
    CH 2 -> 2

    CH 3 -> 3
    CH 4 -> 4

    CH 5 -> 5
    CH 6 -> 6

    CH 7 -> 7
    CH 8 -> 8

    We believe this is either a bug in the chip or there is some difference that is not explained in the data sheet. Maybe the firmware can change it, but the datasheet does not explain it. We cannot use TUSB3200 (without A) because of this. We contacted TI but they do not answer so far.

    Can you try to translate the info of this email and send it to the distributor? They could check with TI or maybe they are aware of the problem, as anyone using this chip will have the same issue when they replace.

    3200和3200A是否存在以上问题呢?
  • 美女
    帮我问下TUSB3200A是否完全兼容TUSB3200,之前TUSB3200停产后,是否工厂都直接切换到TUSB3200A.如果不是完全兼容,有哪些需要注意的地方?
  • 可以的,您可以看一下E2E上工程师的回复

    e2e.ti.com/.../666140

    若是您还有其他问题建议您在E2E上直接发帖询问,我对TUSB系列也不太熟悉,谢谢!