MiFare Classic (13.56MHz RFID/NFC) Card - 1KB

This is a blank MiFare Classic card - often used for train/bus passes but also found in other systems where a proximity card is desired. The tag contains a NXP S50 chip and an antenna, and is passively powered by the reader/writer when placed a couple inches away

These can be read by almost any 13.56MHz RFID/NFC reader but make sure it can handle MiFare cards as there are a few other encoding standards (like FeLica) They are tested and work great with our PN532 NFC/RFID board!

These chips can store up to 1 KB of data in EEPROM divided into banks, and can handle over 100,000 re-writes. There is also a permanent 4-byte ID burned into the chip that you can use to identify one tag from another.

S50 chip specification:

• 1 KiloByte (8 KiloBit) non-volatile EEPROM storage
• Built in encryption engine with 48-bit key
• 4 Byte unique identifier burned into the chip
• 13.56 MHz frequency

Tag specification:

• 85.5mm x 54mm x 1mm /3.36" x 2.1" x 0.03"
• 6.3 grams / 0.2 oz
• Works about 4" away from reader

NXP S50 datasheet