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EM4469V3WW27

Description
512 bit Read/Write Contactless Identification Device
File Size270KB,11 Pages
ManufacturerETC
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EM4469V3WW27 Overview

512 bit Read/Write Contactless Identification Device

EM MICROELECTRONIC
- MARIN SA
EM4469
512 bit Read/Write Contactless Identification Device
Description
EM4469 is a CMOS integrated circuit intended for use in
electronic Read/Write RF transponders.
The 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.
Features
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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
Lock feature convert EEPROM words in read only
Multi-purpose encoding (Manchester, Biphase, Miller,
PSK, FSK)
Multi-purpose data rate from 1 up to 32 Kbaud
Power-check for EEPROM write operation
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
EM4469: trimmed resonant capacitor integrated on
chip (330pF, 250pF or 75pF mask option)
Applications
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Access Control
Animal Identification
Material Logistics
Typical Operating Configuration
C1
L
C2
EM4469
Fig. 1
Copyright
©
2003, EM Microelectronic-Marin SA
1
www.emmicroelectronic.com
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