https://community.nxp.com/t5/Sensors/Ultralight-EV1-chip-UID/m-p/1750617#M7686 <P>&nbsp;</P><P>Hi,&nbsp;</P><P>&nbsp;</P><P>Does the Ultralight EV1 have unique chip UID? I mean that 14-digit number is unique chip UID? For example 04FA90838730K3,&nbsp;04FA9083873089,&nbsp;04FA9083873090.....</P><P>The customer wants to use chip UID&nbsp; "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.</P><P>&nbsp;</P><P>Thank you</P><P>&nbsp;</P><P>Best regards</P><P>Bonnie</P><P>&nbsp;</P><P>&nbsp;</P><P>&nbsp;</P> Thu, 02 Nov 2023 01:15:05 GMT BonnieM 2023-11-02T01:15:05Z https://community.nxp.com/t5/Sensors/Ultralight-EV1-chip-UID/m-p/1750617#M7686 <P>&nbsp;</P><P>Hi,&nbsp;</P><P>&nbsp;</P><P>Does the Ultralight EV1 have unique chip UID? I mean that 14-digit number is unique chip UID? For example 04FA90838730K3,&nbsp;04FA9083873089,&nbsp;04FA9083873090.....</P><P>The customer wants to use chip UID&nbsp; "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.</P><P>&nbsp;</P><P>Thank you</P><P>&nbsp;</P><P>Best regards</P><P>Bonnie</P><P>&nbsp;</P><P>&nbsp;</P><P>&nbsp;</P> Thu, 02 Nov 2023 01:15:05 GMT https://community.nxp.com/t5/Sensors/Ultralight-EV1-chip-UID/m-p/1750617#M7686 BonnieM 2023-11-02T01:15:05Z