EM MICROELECTRONIC
- MARIN SA
EM4223
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 the Fast Counting 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.
Features
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Air interface is ISO18000-6 type A compliant
Supports EAN•UCC 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)
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
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Typical Applications
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Supply chain management (SCM)
Tracking and tracing
Asset control
Licensing
Auto-tolling
Benefits
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Numbering scheme according to international
standards
Operates worldwide according to the local radio
regulation
Ideal for applications where long range and high-speed
item identification is required
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Pin Assignment
3
EM4223
1
2
Pad No
1
2
3
Name
A
V
ss
V
dd
Function
Connection to antenna (positive)
Connection to antenna (negative)
Positive connection (optional use)
Chip design is a joint development with RFIP Solutions Ltd.
EM Microelectronic-Marin SA cannot assume responsibility for use of any circuitry described other than circuitry entirely embodied in an EM
Microelectronic-Marin SA product. EM Microelectronic-Marin SA reserves the right to change the circuitry and specifications without notice at
any time. You are strongly urged to ensure that the information given has not been superseded by a more up-to-date version.
Copyright
2004, EM Microelectronic-Marin SA
Subject to change without notice
Rev. B, 02/04
Phone: +41.32.755-5111, Fax: +41.32.755-5403
www.emmicroelectronic.com
info@emmicroelectronic.com
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