R
EM MICROELECTRONIC -
MARIN SA
EM4469
EM4569
512 bit Read/Write Contactless Identification Device
General Description
EM4469 and EM4569 are CMOS RFID integrated circuits
intended for use in electronic Read/Write RF
transponders.
The RFID IC is powered by picking the energy from a
continuous 125 kHz magnetic field via an external coil,
which together with the integrated capacitor form a
resonant circuit. The IC read out data from its internal
EEPROM and sends it out by switching on and off a
resistive load in parallel to the coil. Commands and
EEPROM data updates can be executed by 100% AM
modulation of the 125 kHz magnetic field.
There are several data rate and data encoding options
available. Options are stored in EEPROM Configuration
word. Read and write access to EEPROM can be
protected by 32-bit password. All EEPROM words can be
write protected by setting lock bits which transform them
in read-only.
It contains factory programmed and locked 32 bit UID
number, chip type and customer code.
EM4569 is completely compatible with EM4469. However,
EM4569 has bumped enlarged pads intended for direct
connection of coil to big bumps. EM4569 also has an
extended reading range which makes it particularly
suitable for animal tracking applications.
Features
Extended reading range (EM4569)
512 bit EEPROM organised in 16 words of 32 bits
32 bit Password read and write protection
32 bit unique identification number (UID)
10 bit Customer code
ISO 11784 / 11785 Standard Compliant
Bumped enlarged pads (EM4569 only)
Lock feature convert EEPROM words in read only
Multi-purpose encoding (Manchester, Biphase, Miller,
PSK, FSK)
Multi-purpose data rate from 1 up to 32k baud
100 to 150 kHz frequency range
On-chip rectifier and voltage limiter
No external supply buffer capacitor needed
-40 to +85°C temperature range
Very low Power consumption
Resonant capacitor integrated on chip (330pF, 250pF
or 75pF mask option)
Applications
Access Control
Animal Identification
(EM4569)
Material Logistics
according
to
ISO
FDX-B
Typical Operating Configuration
C1
L
C2
EM4469
EM4569
Fig. 1
Block Diagram
Clock
Extractor
EEPROM
Data
Extractor
Modulator
V
POS
COIL1
C
R
COIL2
V
SS
Fig. 2
Copyright
©
2005, EM Microelectronic-Marin SA
Subject to change without notice
Rev. B, 02/05
Logic
Power
Supply
C
buf
Power on
Reset
Reset
Phone: +41.32.755-5111, Fax: +41.32.755-5403
www.emmicroelectronic.com
info@emmicroelectronic.com
京公网安备 11010802033920号
EEWORLD
