Regarding "T5577 compatible" IC

In the market there are so called "T5577 compatible" IC, due to the lower cost consideration, we are always keep on watching this IC quality,  Until now TSPRFID do not take it as a option for our customer because of the non-steady performance.

From some customer info, It behave as when using simple function, ie, encoding it into EM working mode, it is fine, but when ctustomer encode it into some complex working mode then it do not respond anymore. 

We declear that all our T5577 product is orginal ATA5577 IC to ensure the long life-span and steady performance. and will not take "T5577 compatible" as option for any order.  

we do hope for your kind understanding, for more support please contact our sales people or technical person for transponder testing and verification.

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