topic Ultralight EV1 chip UID in NFC

Ultralight EV1 chip UID

BonnieM — Thu, 02 Nov 2023 01:19:13 GMT

Hi,

Does the Ultralight EV1 have unique chip UID? I mean that 14-digit number is unique chip UID? For example 04FA90838730K3, 04FA9083873089, 04FA9083873090.....

The customer wants to use chip UID "04" 14 digits number one. I have read the specifications and it said unique, but the customer would like to confirm again as their system does not support repetitive UID.

Thank you

Best regards

Bonnie

Re: Ultralight EV1 chip UID

KaiLi — Mon, 06 Nov 2023 09:05:32 GMT

Hello @BonnieM

Sorry for late reply and for your question, please check the AN10833 MIFARE type identification procedure (nxp.com.cn)

which could be helpful to you.

kelly

Re: Ultralight EV1 chip UID

BonnieM — Wed, 22 Nov 2023 09:25:46 GMT

Hi Kelly,

Ok, got it. Thank you.

Best regards

Bonnie