About the difference between CY8C4248AZI-L485 and CY8C4246AZI-L433

[Anonymous]

Hi all,

   

Today I have bought 2pcs CY8C4248AZI-L485, when I received it, I confirm the mark number is right on the chip, and then I solder it on my PCB, and use the MiniProg3 to try to download my program, in the PSOC creator, I found the software defect the chip part number is CY8C4246AZI-L433. and then I go to solder the second chip, it is same,  PSOC creator defect the chip part number is still CY8C4246AZI-L433. 

   

Why it is? TKS!

[Bob_Marlowe]

Welcome in the forum.

   

The devices are different. I would suggest to get in contact with Cypress directly: At top of this page: Design Support -> Create a Support Case. There is seemingly something darn wrong.

       

Bob

[Anonymous]

I guess I have got the bad chips, TKS your reply, I am applying for some new samples from formal channel. update it after get it.

[Bob_Marlowe]

Nonetheless I would contact Cypress!!! The marking of the chips is not done outside the Cypress fab, so there might be a source of fake chips. Imho it is rather unlikely to have chips marked wrongly.

       

Bob

[Anonymous]

Yes, I may agree with your fake chips comments, I have only gone to try, and I have rejected it. TKS.