EM4135
Copyright
2003, EM Microelectronic-Marin SA
1
www.emmicroelectronic.com
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.
Applications
Access Control
Ticketing
Asset management
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
C1
C2
EM4135
L
Figure 1.
Block Diagram
Vdd
Cr
L2
L1
POR
EEPROM
R
E
G
U
L
A
T
O
R
MODULATOR
LIMITER
POWER
MONITOR
C
BUF
AM
DEMODULATOR
MOD
LOGIC
CLOCK
EXTRACTOR
RECEIVED
CLOCK
Lr
VPOS
PULSE
RECTIFIER
PCK
Figure 2.
EM MICROELECTRONIC
- MARIN SA
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