Chip selection
Each RFID key-fob is equipped with a chip. The choice of chip model depends on the level of security required and the standard of operation. High-frequency, low-frequency and ultra-high-frequency chips can be placed in contactless key fobs.
High frequency chips
- MIFARE Classic 1k (4/7 byte UID
- SMARTTAG 1k (4/7 byte UID)
- MIFARE Plus SE 1k (4/7 byte UID)
- SMARTTAG 4k (4 byte UID)
- MIFARE ID (4 byte nUID)
- MIFARE Classic EV1 (4/7 byte UID)
- MIFARE Ultralight C
- MIFARE Ultralight EV1
- MIK1KMCM
- NFC NTAG 213/215/216
- ICODE SLIX
- ICODE SLIX 2
- MIFARE Plus X 2k (4/7 byte UID)
- MIFARE Plus X 4k (4/7 byte UID)
- MIFARE Plus S 2k (4/7 byte UID)
- MIFARE Plus S 4k (4/7 byte UID)
- MIFARE DESFire Light
- MIFARE DESFire EV3
Low frequency chips
- EM-Marine EM4100
- T5557 Temic Atmel
- SMARTTAG TK4100
Ultra-high-frequency chips. UHF 800-900 МHz ISO15693
- UHF UCODE 7
- UHF UCODE 8
It is possible to manufacture dual RFID key fobs. They implanted 2 chips at once: low-frequency + high frequency. They do not interfere with each other when reading due to a special design of antenna.
- MIFARE Classic 1k (4/7 byte UID) + EM-Marine
- MIFARE Classic 1k (4/7 byte UID) + T5557 Temic Atmel