EM MICROELECTRONIC
- MARIN SA
EM4035
13.56MHz CRYPTO ISO15693 Compliant
Contactless Identification Device
General Description
The EM4035 is a CMOS integrated circuit intended for use in
contactless Read/Write transponders. The EM4035 is
completely ISO15693 compliant and is a member of ISO
15693 standard passive Read/Write RF tags operating at
13.56MHz.
The Chip contains an implementation of a crypto-algorithm
with 96 bit of user configurable secret-Keys contained in
EEPROM.
The 3.2k bit EEPROM memory contained in the chip is
organized in 50 words of 64 bits, each word can be irreversibly
locked. The memory contains a unique 64-bit serial number
(UID).
An ISO 15693 anticollision algorithm allows operating more
tags in the field simultaneously.
The 64bits UID as defined in ISO15693 standard is factory
programmed and locked. It includes a 6 bits chip type and a
10 bits customer code made specific on request.
The resonant capacitor value is selected by metal mask.
Features
ISO15693 Standard: Fully Compliant
Operating Frequency: 13.56MHz
±
7KHz
64-bit Unique Identifier (UID)
3.2K bit EEPROM organised in 50 words of 64 bits
Support Application Field Identifier (AFI)
Smart Electronic Article Surveillance (EAS)
On Chip Crypto-Algorithm
Mutual authentication using symetrical challenge
response exchange
Power-check for EEPROM write operation
Resonant capacitor integrated on chip
28pF or 95pF (selectable by mask option)
No external supply buffer capacitor needed
Very low Power consumption (no battery needed)
-40 to +85°C Temperature range
Bonding pads optimised for flip-chip assembly
/
Typical Operating Configuration
Applications
High security hands-free access Control
Anti-counterfeiting
Ticketing
Asset management
C1
L
C2
Figure 1.
EM4035
Block Diagram
V
POS
Cr
RECTIFIER
L1
CLOCK
EXTRACTOR
RECEIVED
CLOCK
C
BUF
V
DD
POWER
MONITOR POR
PCK
EEPROM
Lr
AM
DEMODULATOR
REGULATOR
L2
PULSE
LOGIC
CRYPTO
ENGINE
MODULATOR
MOD
RANDOM
NUMBER
GENERATION
LIMITER
Figure 2.
Copyright
2003, EM Microelectronic-Marin SA
1
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EMMICRO [ EM MICROELECTRONIC - MARIN SA ]
