NFC IC marking

[asdds12]

Hi, I have an "unknown" SMD IC with marking code 2L1, based on its use, on the datasheet and its package it is either the NT3H2111W0FHK or the NT3H2211W0FHK, but in the datasheet there is no marking code like 2L1, only 221 or 211 accordingly. 

My question is, what part exactly I got and how would i tell it? Thank you for the answer.

[KaiLi]

Hello @asdds12 

Thanks for contacting us and based on your description that should be NTAG I2C PLUS. But in order to determine the exact model, it is recommended that you use NXP's TagInfo to test it. TagInfo can be downloaded directly on your mobile phone. The below is NTAG I2C PLUS:

BR

kelly