XRAG2_08 Datasheet, PDF (7/33 Pages) STMicroelectronics – 432-bit UHF, EPCglobal Class1 Generation2 and ISO 18000-6C, contactless memory chip with user memory

XRAG2
Description
Table 1. Signal names
Signal name
Function
AC1
AC0 (GND)
Antenna pad
Antenna pad
The dialog between the reader and the XRAG2 is conducted through the following
consecutive operations:
● activation of the XRAG2 by the UHF operating field of the reader
● transmission of a command by the reader
● transmission of a response by the XRAG2
This technique is called RTF (reader talk first).
The XRAG2 is specifically designed for extended-range applications that need automatic
item identification. The XRAG2 provides a fast and flexible anti-collision protocol that is
robust under noisy and unpredictable RF conditions typical of RFID applications. The
XRAG2 EEPROM memory can be read and written, which enables users to program the
EPC code and user memory on site, if desired.
The TID memory is written by STMicroelectronics during the manufacturing process.
Figure 3. UFDFPN connections
AC1 NC NC
123
654
AC0 NC NC
AI15109
1. There is an exposed central pad on the underside of the UFDFPN package. This is pulled, internally, to
V_SS, and must not be allowed to be connected to any other voltage or signal line on the PCB.
2. See Package mechanical data section for package dimensions, and how to identify pin-1.
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