EM MICROELECTRONIC
- MARIN SA
EM4135
13.56MHz, ISO15693 Standard Compliant
Contactless Identification Device
General Description
The EM4135 is a CMOS integrated circuit intended for use in
contactless Read/Write transponders.
The 2.4k bit EEPROM memory contained in the chip is
organized in 38 words of 64 bits, each word can be irreversibly
locked. The memory contains a unique serial number (UID).
The ISO 15693 anticollision algorithm allows operating more
tags in the field simultaneously. The EM4135 is completely
ISO15693 compliant since it includes all ISO15963 mandatory
features.
The 64 bits 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
(ISM, world-wide licence free available)
2.4K bit EEPROM organised in 38 words of 64 bits
64-bit Unique Identifier (UID)
Lock feature convert EEPROM words in Read Only
Support Application Field Identifier (AFI)
Power-check for EEPROM write operation
Resonant capacitor integrated on chip
28pF or 95pF (selectable by mask option)
No external supply buffer capacitor needed
-40 to +85°C temperature range
Very low Power consumption (no battery needed)
Bonding pads optimised for flip-chip assembly
Typical Operating Configuration
Applications
Access Control
Ticketing
Asset management
C1
L
C2
Figure 1.
EM4135
Block Diagram
L2
VPOS
R
E
G
U
L
A
T
O
R
Vdd
Lr
Cr
C
BUF
RECTIFIER
POWER
MONITOR
POR
PCK
L1
CLOCK
EXTRACTOR
RECEIVED
CLOCK
AM
DEMODULATOR
PULSE
LOGIC
EEPROM
MODULATOR
MOD
LIMITER
Figure 2.
Copyright
2003, EM Microelectronic-Marin SA
1
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EMMICRO [ EM MICROELECTRONIC - MARIN SA ]
