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R
EM4223
Copyright
2004, EM Microelectronic-Marin SA
1
www.emmicroelectronic.com
Read-only UHF Radio Frequency Identification Device
according to ISO IEC 18000-6
Description
The EM4223 chip is used in UHF passive read-only
transponder applications. The chip derives its operating
power from an RF beam transmitted by the reader, which
is received and rectified by the chip. It transmits its
factory-programmed code back to the reader by varying
the amount of energy that is reflected from the chip
antenna circuit (passive backscatter modulation).
The air interface communication protocol is implemented
according to ISO18000-6 type A.
The code structure supports the effort of EPCglobal, Inc.
as an industry accepted standard.
It
additionally
incorporates
Supertag protocol for applications where the fast
counting of large tag populations is required.
The chip is frequency agile, and can be used in the
range of 800 MHz to 2.5GHz for RF propagating field
applications.
Typical Applications
Supply chain management (SCM)
Tracking and tracing
Asset control
Licensing
Auto-tolling
Key words
ISO 18000-6A
UHF
EPC data structure
Fast Supertag
the
Fast
Counting
Features
Air interface is ISO18000-6 type A compliant
Supports EANUCC and EPC data structures as
defined by the Auto-ID center
Supports Fast Counting Supertag mode
128 bit user memory license plate Group select by
means of ‘Application Family Identifier’ (AFI)
according to ISO
Fast reading of user data during arbitration (no need
to first take an inventory)
Specific command set for supply chain logistics
support.
Frequency independent: Typically used at 862 - 870
MHz, 902 - 950 MHz and 2.45 GHz
Low voltage operation - down to 1.0 V
Low power consumption
Cost effective
-40 to +85°C operating temperature range
Benefits
Numbering
scheme
according
standards
Operates worldwide according to the local radio
regulation
Ideal for applications where long range and high-
speed item identification is required
Typical Operating Configuration
to
international
Fig. 1
Chip design is a joint development with RFIP Solutions Ltd
Connect pad A+
And V
SS
to a
dipole antenna
A+
EM4223
V
DD
V
SS
EM MICROELECTRONIC -
MARIN SA