UCODE G2XM and G2XL
The UHF EPCglobal Generation 2 standard allows the commercialized provision of mass adoption of UHF RFID technology for passive smart tags and labels. Main fields of applications are supply chain management and logistics for worldwide use with special consideration of European, US and Chinese frequencies to ensure that operating distances of several meters can be realized.
The G2X is a dedicated chip for passive, intelligent tags and labels supporting the EPCglobal Class 1 Generation 2 UHF RFID standard. It is especially suited for applications where operating distances of several meters and high anti-collision rates are
required.
The G2X is a product out of the NXP Semiconductors UCODE product family. The entire UCODE product family offers anti-collision and collision arbitration functionality. This allows a reader to simultaneously operate multiple labels / tags within its antenna field.
A UCODE G2X based label/ tag requires no external power supply.
Its contact-less interface generates the power supply via the antenna circuit by propagative energy transmission from the interrogator (reader), while the system clock is generated by an on-chip oscillator. Data transmitted from interrogator to label/tag is demodulated by the interface, and it also modulates the interrogator’s electromagnetic field for data transmission from label/tag to interrogator. A label/tag can be operated without the need for line of sight or battery, as long as it is connected to a dedicated
antenna for the targeted frequency range. When the label/tag is within the interrogator’s operating range, the high-speed wireless interface allows data transmission in both directions.
In addition to the EPC specifications the G2X offers an integrated EAS (Electronic Article Surveillance) feature and read protection of the memory content. On top of the specification of the G2XL the G2XM offers 512-bit of user memory.
Features and benefits
1 Key features
512-bit user memory (G2XM only) 240-bit of EPC memory
64-bit tag identifier (TID) including 32-bit unique serial number
Memory read protection
EAS (Electronic Article Surveillance) command
Calibrate command
32-bit kill password to permanently disable the tag
32-bit access password to allow a transition into the secured transmission state
Broad international operating frequency: from 840 MHz to 960 MHz
Long read/write ranges due to extremely low power design
Reliable operation of multiple tags due to advanced anti-collision
Forward link: 40-160 kbit/s
Return link: 40-640 kbit/s
2 Key benefits
High sensitivity provides long read range Low Q-factor for consistent performance on different materials
Improved interference suppression for reliable operation in multi-reader environment
Large input capacitance for ease of assembly and high assembly yield
Highly advanced anti-collision resulting in highest identification speed
Reliable and robust RFID technology suitable for dense reader and noisy environments
3 Custom commands
EAS AlarmEnables the UHF RFID tag to be used as EAS tag without the need for a backend data base.
Read Protect
Protects all memory content including CRC16 from unauthorized reading.
Calibrate
Activates permanent back-scatter in order to evaluate the tag-to-reader performance.
3. Applications
Supply chain management Item level tagging
Asset management
Container identification
Pallet and case tracking
Product authentication
