13,56 MHz RFID/NFC card - 1KB memory

A NFC/RFID 13.56MHz card for contactless reading - NTAG203

Here is a blank RFID/NFC 13.56 MHz card - the same kind of card used in the bus or acces system where you should read data by using a contactless system. This card contains a small RFID chipset and an antenna. The card is passively powered by the RFID reader while reading/writing when the card is placed near of the reader.

These cards can be readed by almost any of the RFID/NFC reader working at 13.56MHz. You should check that your reader support the ISO/IEC 14443 Type A (there is also some other encoding standard like FeLica).

Theses cards have been tested with succes with the following Adafruit readers:

• The Adafruit's RFID/NFC shield for Arduino d'AdaFruit
• The Adafruit's PN532 NFC/RFID breakout

This card can handle writing operations and can store up to 1 KB of data in the EEPROM (divided in "bank"). The card can manage up to 100.000 writing cycles. You can use a RFID/NFC shield for Arduino or a PN532 NFC/RFID breakout to read and write data to the EEPROM (stored inside the card).

The card also have a pre-encoded 4 bytes identifier. So you can identifies each card for sure - this ID number cannot be modified!

This card use a ISO/IEC 14443 Type A chipset, which use the 'classic' NFC chipset. Around ~2014, the NFC forum decided to deprecate this chipset. As a result, newer smartphone would not be able to read those card, but that's only important if you want to read the tags from your smartphone/tablet.

Technical details

RFID chipset specification:

• 1 KB EEPROM storage (8 KiloBits) non-volatile
• Build in encryption engine (48-bits encryption key)
• Unique identifier on 4 Bytes already burned inside the card (cannot be modified).
• Frequency: 13.56 MHz

Card specification :

• 85.5mm x 55mm (credit card size).
• 1mm tickness .
• ~6.3 grams.
• Works about ~5 cm away from the reader