XRAG2-SBN18I [STMICROELECTRONICS]
UHF, EPCglobal Class-1 Generation-2, Contactless Memory Chip 432 bit with Multi-session Protocol, Anti-collision and Kill functions; UHF ， EPCglobal的类1代， 2 ，非接触式存储器芯片432位的多会话协议，防冲突，并杀死功能
| 型号： | XRAG2-SBN18I |
| 厂家： | 
ST |
| 描述： | UHF, EPCglobal Class-1 Generation-2, Contactless Memory Chip 432 bit with Multi-session Protocol, Anti-collision and Kill functions |
| 文件： | 总8页 (文件大小：69K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
XRAG2
UHF, EPCglobal Class-1 Generation-2, Contactless Memory Chip
432 bit with Multi-session Protocol, Anti-collision and Kill functions
DATA BRIEF
Figure 1. Delivery forms
Features summary
■ EPCglobal Class-1 Generation-2 specification
■ Passive Operation (no battery required)
■ UHF Carrier Frequencies from 860 MHz to
960 MHz ISM Band which comply with:
– North American regulations
– European regulations
– and other countries where similar
regulations apply
■ To the XRAG2:
Unsawn unbumped wafers
or
– Asynchronous 90% SSB-ASK, DSB-ASK
or PR-ASK modulation using Pulse Interval
Encoding (Up to 128 kbps)
sawn and bumped wafers
■ From the XRAG2:
– Backscattered reflective answers using
FM0 or Miller bit coding (up to 640 kbps)
■ 432-bit memory with two possible
configurations:
– 3 memory banks: 64-bit TID, 304-bit EPC
and 64-bit RESERVED
– 4 memory banks: 128-bit USER, 64-bit TID,
176-bit EPC and 64-bit RESERVED
■ Multi-session protocol
■ Anti-collision functionality
■ Inventory, Read, Write and Erase features
■ Kill command
■ 100-ms Programming Time (max) for 288-bit
programming (EPC code, Protocol Control bits
and CRC16)
■ More than 10,000 Write/Erase cycles
■ Over 40 Year Data Retention
Rev. 2
1/8
August 2005
For further information contact your local STMicroelectronics sales office.
www.st.com
8
1 Summary description
XRAG2
1
Summary description
The XRAG2 is a full-featured, low-cost integrated circuit for use in Radio Frequency
Identification (RFID) transponders (tags) operating at UHF frequencies. It is a 432-bit memory
organized in 16-bit Words in 3 or 4 memory banks as shown in Figure 3 and Figure 4.
When connected to an antenna, the operating power is derived from RF energy produced by
the RFID reader. Incoming data are demodulated and decoded from the received Double-Side
Band Amplitude Shift Keying (DSB-ASK), Single-Side Band Amplitude Shift Keying (SSB-ASK)
or Phase-Reversal Amplitude Shift Keying modulation signal. Outgoing data are generated by
antenna reflectivity variations using either the FM0 or Miller bit coding principle (RFID reader
parameter).
A Kill function is provided to permanently disable the tag.
Anti-collision features enable the rapid inventorying of tag populations.
Communication between reader and tag are Half-duplex meaning that tags do not decode
reader commands while backscattering.
The data transfer rate is defined by the local UHF frequency regulations.
The XRAG2 is fully compliant with the ePC Global Class-1 Generation-2 UHF RFID
specification (Revision 1.0.9) for the radio-frequency power and signal interface.
Figure 2. Pad connections
Power
AC1
Supply
Regulator
432-bit
EEPROM
memory
ASK
Demodulator
Reflecting
Modulator
AC0
The reader and the XRAG2 dialog through the following consecutive operations known as RTF
(Reader Talk First) communication:
■
■
■
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
Table 1.
Signal names
AC1
Antenna Pad
AC0
Antenna Pad (GND)
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 in
noisy and unpredictable RF conditions typical of RFID applications. The XRAG2 EEPROM
memory can be read and write which enable users to program the EPC code and USER
memory at the point of application, if desired.
2/8
XRAG2
2 XRAG2 memory mapping
2
XRAG2 memory mapping
The XRAG2 is a 432-bit memory divided into a 3-memory bank (without USER memory) or
4-memory bank (with USER memory) configuration. Each bank is organized into 16-bit Words.
The reader can read part or all of each memory bank in single or multiple groups of 16-bit
Words. Use the WRITE command to write to device memory using 16-bit Words. The
BLOCKWRITE command enables readers to write up to four 16-bit Words to device memory at
a single time. Erase multiple 16-bit Words (up to the complete memory bank) using the
BLOCKERASE command.
Table 2.
Memory bank description
Memory Bank
Description
USER
User-specific data
TID (Tag-identification Data)
EPC (Electronic Product Code)
RESERVED
Manufacturer and custom information
CRC-16, Protocol Control and item identification code (EPC)
Kill and access passwords
Note:
The 64-bit TID memory content is written by STMicroelectronics during the manufacturing
process in compliance with the ISO 15963 Technical Report in order to comply with ISO 18000
recommendations.
Figure 3 describes the three-memory bank configuration.
Figure 3. Three-memory bank configuration
30h
20h
10h
00h
TID
TID
3Fh
2Fh
1Fh
0Fh
TID
TID = E002h
120h
110h
...
RFU
12Fh
11Fh
...
EPC
...
...
...
up to 256 EPC bit
TID Bank
EPC Bank
64-bit
304-bit
64-bit
Bank 10
Bank 01
Bank 00
...
...
...
20h
10h
00h
EPC
2Fh
1Fh
0Fh
RESERVED Bank
(PC+EPC) length
AFI/NSI
CRC16
30h
20h
10h
00h
Access Password
Access Password
Kill Password
3Fh
2Fh
1Fh
0Fh
Kill Password
3/8
2 XRAG2 memory mapping
XRAG2
The four-memory bank configuration is shown in Figure 4.
Figure 4. Four-memory bank configuration
70h
...
User
...
7Fh
...
10h
00h
User
User
1Fh
0Fh
30h
20h
10h
00h
TID
TID
3Fh
2Fh
1Fh
0Fh
TID
USER Bank
TID Bank
128-bit
64-bit
Bank 11
TID = E002h
Bank 10
Bank 01
EPC Bank
176-bit
64-bit
A0h
90h
...
DSFID
AFh
9Fh
...
RESERVED Bank
Bank 00
EPC
...
...
...
up to 128 EPC bit
...
...
...
20h
10h
00h
EPC
2Fh
1Fh
0Fh
(PC+EPC) length
AFI/NSI
CRC16
30h
20h
10h
00h
Access Password
Access Password
Kill Password
3Fh
2Fh
1Fh
0Fh
Kill Password
4/8
XRAG2
3 XRAG2 commands
3
XRAG2 commands
The XRAG2 offers Select, Inventory, and Access commands sets supported as defined in
ePCglobal Class-1 Generation-2 UHF RFID specifications (Revision 1.0.9).
Table 3.
XRAG2 commands
Command Set
Available Commands
Select Command Set
SELECT
Inventory Command Set
QUERY, QUERYADJUST, QUERYREP, ACK and NAK
REQ_RN, READ, WRITE, KILL, LOCK, ACCESS, BLOCKWRITE and
BLOCKERASE
Access Command Set
5/8
4 Part numbering
XRAG2
4
Part numbering
Table 4.
Example:
Ordering information scheme
XRAG2
-
W4I
/ XXX
Device Type
XRAG2
Delivery Form
W4I = 180µm ± 15µm Unsawn Inkless Wafer
SBN18I = 180 µm ± 15µm Bumped and Sawn Inkless Wafer on 8 inch frame
Customer Code
XXX = Customer Code, given by STMicroelectronics
Note:
For further information on any aspect of this device, please contact your nearest ST Sales
Office.
6/8
XRAG2
5 Revision history
5
Revision history
Date
Revision
Changes
18-Jul-2005
17-Aug-2005
1.0
2.0
Initial release.
Replaced TID = E202h by TID = E002h in Figure 3 and Figure 4.
7/8
5 Revision history
XRAG2
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences
of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted
by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject
to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not
authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.
The ST logo is a registered trademark of STMicroelectronics.
All other names are the property of their respective owners
© 2005 STMicroelectronics - All rights reserved
STMicroelectronics group of companies
Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan -
Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America
www.st.com
8/8
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