512 bit Read/Write Contactless Identification Device
EM4269 is a CMOS integrated circuit intended for use in
electronic Read/Write RF transponders. It is compatible to
EM4469/4569 family. It is intended for direct connection of
coil to big bumps.
Comparing to EM4469/4569 family the changes are the
‰ New configuration bit co25 which inverts data input to
encoder is introduced.
‰ Writing to Protection Word is modified.
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. The resonant
capacitor value is selected by metal mask.
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
Lock feature convert EEPROM words in read only
Multi-purpose encoding (Manchester, Biphase, Miller,
Multi-purpose data rate from 1 up to 32k baud
100 to 150kHz frequency range
On-chip rectifier and voltage limiter
No external supply buffer capacitor needed
-40 to +85°C temperature range
Very low Power consumption
Big pads (200 μm x 400 μm) for direct connection of
coil using bumps
Resonant capacitor with options 330pF, 250pF and
75pF integrated on chip
Access Control
Animal Identification according to ISO FDX-B
Material Logistics
Typical Operating Configuration
Fig 1
EM Microelectronic-Marin SA (EM) makes no warranty for the use of its products, other than those expressly
contained in the Company's standard warranty which is detailed in EM's General Terms of Sale located on the
Company's web site. EM assumes no responsibility for any errors which may appear in this document, reserves the
right to change devices or specifications detailed herein at any time without notice, and does not make any
commitment to update the information contained herein. No licenses to patents or other intellectual property of EM
are granted in connection with the sale of EM products, expressly or by implications. EM's products are not
authorized for use as components in life support devices or systems.
© EM Microelectronic-Marin SA, 11/05, Rev A.
Copyright © 2005, EM Microelectronic-Marin SA