The xM1 is an ISO/IEC 14443-A Mifare S50 1K RFID chipset encased in a 2x12mm cylindrical USP grade lead-free borosilicate biocompatible glass housing. The xM1 can be read and written to by many types of 13.56MHz RFID systems. While not truly an NFC compliant tag type, the xM1 does have limited NFC compatibility with certain NFC enabled Android devices such as the Samsung Nexus S, Samsung Galaxy Nexus, the Nexus 7, the HTC Amaze, etc. as well as Windows Phone powered devices such as the Nokia Lumia 920. It has 1KB memory and supports Crypto-1 encryption.
- 13.56MHz Mifare Classic S50 2x12mm glass tag
- Memory size 1Kb with a max NDEF message size of 716 bytes
- Unlimited memory reads. Rated for 100,000 writes per memory block
- Encased in a 2mm by 12mm USP grade lead-free borosilicate biocompatible glass shell
- No Parylene C or porous polypropylene “anti-migration” coating means easy removal/replacement
- Sterilized in an autoclave, fully tested, and shipped in sealed sterilization pouch
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WARNING: The xM1 is based on the Mifare S50, which is one of the most popular RFID chips in the world. Unfortunately, the Mifare S50 is not officially an NFC compliant tag conforming to NFC Forum tag types 1 through 4. However, many NFC enabled mobile devices that contain the NXP NFC reader IC, and some desktop NFC readers, will still read and write to the xM1. NFC enabled Android devices such as the Samsung Nexus S, Samsung Galaxy Nexus, the Nexus 7, the HTC Amaze, etc. as well as Windows Phone powered devices such as the Nokia Lumia 920 all have no problem reading/writing the xM1. Certain devices like the Google Nexus 4 phone and Nexus 10 tablet do not use the NXP NFC reader IC and can only read the xM1′s UID bits and cannot access any memory blocks for use with NFC.
MF1ICS50 Functional Specification – The functional spec for the ISO/IEC 14443 Type A MIFARE Classic S50 RFID tag.
NFC Type MIFARE Classic Tag Operation – How an NFC device (reader) can read and store NDEF data on the MIFARE family of tags.
MIFARE Classic as NFC Type MIFARE Classic Tag – Extended functionality & info regarding NFC Type MIFARE applications.
S50 Access Control – A paper written by Amal Graafstra that describes how security and access control works with the Mifare S50 tag.
The xM1 is compatible with the following products: