怎样确定LPC5514JBD64的第一个引脚

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怎样确定LPC5514JBD64的第一个引脚

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thoomanwang
Contributor V

thoomanwang_0-1667557586976.png

thoomanwang_1-1667557636231.png

 

LPC5514JBD100封装有1pin标识,64pin的封装根本没有标识,文档中也无说明,只能猜或试???做个标记或在文档中说明一下很难吗?。

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ZhangJennie
NXP TechSupport
NXP TechSupport

I have requested document team to improve the doc.
I will keep you informed.

View solution in original post

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amrishhpuri
Contributor I

I suspect that the chip used is not officially releasedI have encountered such a situation on the mk10 chip.

hellodear.in

teatv download

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ZhangJennie
NXP TechSupport
NXP TechSupport

Hi thoomanwang,

Please see datasheet, page 8, 

https://www.nxp.com.cn/docs/en/nxp/data-sheets/LPC55S1x_LPC551x_DS.pdf

you will see

ZhangJennie_0-1667801910551.png

 

I don't have a LPC5514JBD64 in my hand now, but I just took a photo for LPC55S06JBD64, you will see pin 1 is labbled on the board. This is the same as LPC5514JBD64.

ZhangJennie_1-1667802067016.png

 

 

Thanks,

Jun Zhang

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thoomanwang
Contributor V

thoomanwang_0-1667557586976.png

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ZhangJennie
NXP TechSupport
NXP TechSupport

Please let me know if you bought the part from offical distributor? please let me know the contact.

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thoomanwang
Contributor V

mouser

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ZhangJennie
NXP TechSupport
NXP TechSupport

There is cosmetic change to product appearance, customer should receive product change update doc. CIN 2022020171I. If you don't get it, please check with mouser.

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ZhangJennie
NXP TechSupport
NXP TechSupport

HI thoomanwang 

Thanks. Please refer my answer to use bottom left pin as first.

I will report it to doc team.

Thanks,

Jun Zhang

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thoomanwang
Contributor V

I tried four directions and couldn't identify them correctly.

 

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ZhangJennie
NXP TechSupport
NXP TechSupport

How many parts shows like your picture?

This is abnormal. We may check the distributor and factory.

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thoomanwang
Contributor V

I bought 10 ps for development.

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thoomanwang
Contributor V

I only used 2 parts

I suspect that the chip used is not officially releasedI have encountered such a situation on the mk10 chip.

 

thanks

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ZhangJennie
NXP TechSupport
NXP TechSupport

If you buy the part from official distributor, they all official part. Please check the part with vendor.

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ZhangJennie
NXP TechSupport
NXP TechSupport

I have requested document team to improve the doc.
I will keep you informed.

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