Enjoyrfid Technical

Auto-ID tag standards
In order to be able to standardise the RFID tags, the Auto-ID Center devised a series of classes for RFID tags. was generated and these still form the basis for a developed system of RFID tag classes seen today:

Class 0: Basic read-only passive tag using backscatter where the tag was programmed at the time the tag chip was made.
Class 1: Basic read-only passive tag using backscatter with one-time non-volatile programme capability.
Class 2: Passive backscatter tag with up to 65k of read-write memory.
Class 3: Semi-passive tag with up to 65 k read-write memory and a battery incorporated to provide increased range.
Class 4: Active tag using a with battery to enable extra functionality within the tag and also to provide power for the transmitter.
Class 5: An active tag that provides additional circuitry to communicate with other class 5 tags.
The responsibilities for Class 0 and Class 1 RFID tag definitions and standards was handed on to EPC Global in 2003.

Although other newer RFID tag standards and now available, reference is still made to these original tag classes.