RFID transceivers are combination receiver/transmitter devices that RFID readers and RFID tags use to communicate with each other. As their name suggests, radio frequency identification device transceivers (RFID) both receive and transmit data. They are available as integrated circuits (ICs) and modules. Product specifications include frequency range, output power, current consumption, supply voltage range, and operating temperature. RFID transceivers also differ in terms of IC package type, the number of pins, and the termination type. Surface mount devices (SMD) are commonly available. In RFID transceiver modules, the number of transceivers is important to consider. Some products have more receiver inputs than transceivers.
In RFID transceivers, information can be both transmitted and received for two-way communications whereas many other RFID devices only send data in one direction. The use of RFID transceivers enable devices to be used for very short-range communications. An example would be to both identify the unique ID and relay information such as sensor data or security settings, or other secure information between two devices.
RFID transceivers carry product specifications for interface and performance. Some products are designed for wireless communications or transistor-transistor logic (TTL). Others use the universal serial bus (USB) or a serial communications protocol such as RS232, RS422, and RS485. With regard to performance, the amount of memory determines the amount of data that RFID transceivers can store. Read rate is the maximum rate at which data such as part IDs and customer account numbers can be read from RFID tags. Detection range specifies the distance at which RFID transceivers can be used to send and receive communications.