U CODE EPC G2
The EPC global UHF Generation 2 Standard allows the ccommercialized provision of mass adaption of UHF EPC technology for passive smart tags and labels. Main fields of applications will be especially the supply chain management and logistics for worldwide use with especial consideration of European and US regulations to ensure that operating distances of several meters can be realized.

The UCODE EPC G2 IC 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 UCODE EPC G2 IC 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 EPC G2 based label / tag requires no external power supply.

Its contactless interface generates the power supply via the antenna circuit by propagative energy transmission from the interrogator (read / write device). 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.

Features and benefits

ISO Card AD824. AL9562

Operate Frequency FCC (902-928 MHz) ETSI (865-868 MHz)
Reading Distance: 5-10m depending on reader power and antenna design
Dimension: 85.6 x 54 x 0.8mm CR80 85.6 x 54 x 0.8mm CR80
Material: PVC/ PET PVC/ PET
Housing: PVC/ PET lamination PVC/ PET lamination
Operating Temperature: -25

Key features

Interface fully compatible with UHF EPC G2 standard
Long-range solutions
Suitable for UHF RFID. allowing one IC to be used worldwide
Fast data rate
Forward link: 40 ? 160 kbits/s
Return link: 40 ? 640 kbits/s
512 bit of on-chip memory
96 bit EPC
64 bit tag Identifier
224 bit programmable user memory
32 bit access password
32 bit kill password
Runs on the same hardware infrastructure as the UCODE HSL and the UCODE EPC1.19

Key benefits

Tags / labels and readers available from various suppliers
First UHF EPC product operating worldwide
Highly advanced anti-collision resulting in highest identification speed
Reliable and robust RFID technology suitable for dense reader and noisy environment
Secure UHF communication; readers do not transmit EPC data
Broadest industry back-up – EPC global and ISO 18000-6C
Reader portfolio covers all regional demands

RF Interface Features

Contact-less transmission of data and supply energy (no battery needed)
Long-range operating distance
Operating frequency within the released operating bands from 860 MHz to 960 MHz
High data integrity: 16 bit CRC. framing
High anti-collision and inventory speed

Memory Features

96 bit EPC numbers supported
64 bit tag identifier (TID)
32 bit kill password to permanently disable the tag
32 bit access password to allow a transition into the secured transmission state
224 bit user memory with free definable memory organization
Inventoried flags and selected flag support the handling of persistence information
Security Features
Lock mechanism (write protection) for individual passwords and individual memory banks allow for permanent lock (permalock) status of a password or memory bank.

Data rates

R -> T: 40 – 160 kbps.
T -> R: 40 – 465 kbps (Divide ratio DR = or 95 – 640 kbps (DR = 64/3)
Uses a slotted random anti-collision algorithm where the UCODE EPC G2 IC loads a random (or pseudo-random) number into a slot counter. decrement this slot counter based on interrogator commands. and reply to the interrogator when their slot counter reaches zero. Supports the full mandatory command set as well as optional and Customer commands according to the standard