EM4237SLIC/SLIX - EM Microelectronic

EM MICROELECTRONIC - MARIN SA
EM4237SLIC/SLIX
1k-bit (SLIC) / 2k-bit (SLIX) R/W Memory
ISO/IEC15693 Standard Compliant Device
General Description
Features
The EM4237/SLIX is a long range passive CMOS integrated
circuit intended for use in applications requiring a
contactless read/write memory and offering optionally a
certain level of security based on a 32-bit password
authentication.

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The SLIC 1k-bit / SLIX 2k-bit R/W NV memory are
organized
in
32/64
blocks
of
4-bytes.
The
EM4237SLIC/SLIX offers a high level of flexibility in terms of
memory management and access conditions. A memory
block can be read/write protected and/or locked separately.
This latest generation of NV memory offers data retention of
60-years enabling solutions for long-term asset
management applications.
Chip application privacy and NV memory access conditions
are optionally protected by a 32-bit password, good trade-off
for most part of anti-theft applications. To ensure a good
level of privacy, the chip can be personalized to remain
silent to any command received from the RFID interrogator
or be programmed to return a random ID number value.


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The EM4237SLIC/X features are enriched with a Smart
Electronic Article Surveillance (EAS) mainly used in library
applications. The EAS is configurable and programmable
providing the maximum of efficiency and optionally
protected by the IC password.
The IC supports all the ISO/IEC 15963-3 mandatory
commands and many of the optional commands. The chip
command set is completed by custom commands providing
a higher degree of differentiation in terms of security,
flexibility and data protection.

ISO/IEC15693 & ISO/IEC18000-3 compliant
Long range, low power vicinity transponder IC
64-bit ISO/IEC 15963-3 Unique Identifier
1024-bit / 2048-bit user’s free data memory
Security features based on a 32-bit password
Optional Random ID for enhanced security and privacy
Advanced NVM management access conditions
Smart EAS for advanced library management systems
Data Storage Format Identifier (DSFID)
Application Field Identifier (AFI)
Memory blocks/pages Locking mechanism
Lock mechanism for AFI, DSFIS and EAS
Password protected EAS and AFI functionality
Destroy function to deactivate the chip forever
Support all mandatory, most of optional ISO/IEC15693-3
commands and an enriched set of custom commands
53kbps baud rate for read multiple block command
On-chip and accurate resonant capacitor: 23.5pF
-40°C to +85˚C temperature range
Bonding pads optimized for flip-chip assembly
60-years NVM data retention
Wafer delivery 3 mils thickness, suitable solution for
ticketing applications
Package option: ultra-thin DFN403 package
Applications

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Library management
Access Control
Industrial laundries
Ticketing
Casino and Gaming
Supply Chain Management
Block Diagram
L2
Lr
VPOS
Cr
CBU
RECTIFIE
R
R
E
G
U
L
A
T
O
R
Vdd
POWER
MONITOR
POR
PCK
L1
CLOCK
EXTRACTOR
AM
DEMODULATOR
RECEIVED
CLOCK
PULSE
EEPROM
LOGIC
MOD
MODULATOR
LIMITER
Figure 1
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EM4237SLIC/SLIX
Table of Contents
1.
2.
3.
4.
5.
6.
7.
8.
Definitions, abbreviations and symbols .........................................................................................................4
Absolute Maximum Ratings .............................................................................................................................4
Handling Procedures ........................................................................................................................................4
Operating Conditions .......................................................................................................................................4
Electrical Characteristics .................................................................................................................................5
VICC to VCD timings .........................................................................................................................................5
Memory Organization .......................................................................................................................................7
NVM Memory Map description .........................................................................................................................9
8.1
8.2
9.
Features and Modes .......................................................................................................................................10
9.1
9.2
9.3
9.4
10.
11.
11.2
11.3
11.4
Command format ................................................................................................................................................. 15
11.1.1 VCD request .......................................................................................................................................... 15
11.1.2 VICC answer format .............................................................................................................................. 15
Mandatory and Optional commands .................................................................................................................... 16
11.2.1 Inventory................................................................................................................................................ 16
11.2.2 Write single block .................................................................................................................................. 16
11.2.3 Lock block ............................................................................................................................................. 16
11.2.4 Write AFI ............................................................................................................................................... 16
11.2.5 Lock AFI ................................................................................................................................................ 16
11.2.6 Write DSFID .......................................................................................................................................... 16
11.2.7 Lock DSFID ........................................................................................................................................... 16
Custom commands.............................................................................................................................................. 17
11.3.1 Set EAS (Command code ‘A2’) ............................................................................................................. 17
11.3.2 Reset EAS (Command code ‘A3’) ......................................................................................................... 17
11.3.3 Lock EAS (Command code ‘A4’) ........................................................................................................... 18
11.3.4 Active EAS (Command code ‘A5’) ......................................................................................................... 18
11.3.5 Protect EAS (Command code ‘A6’) ....................................................................................................... 19
11.3.6 Write EAS ID (Command code ‘A7’) ...................................................................................................... 19
11.3.7 Write EAScfg (Command code ‘A8’) ..................................................................................................... 20
11.3.8 Inventory block Read (Command code ‘B0’) ......................................................................................... 20
11.3.9 Change Key (Command code ‘B4’) ....................................................................................................... 21
11.3.10 Protect Memory Page (Command code ‘B6’) ........................................................................................ 22
11.3.11 Get multiple block protection status (Command code ‘B8’) .................................................................. 22
11.3.12 Destroy (Command code ‘B9’) .............................................................................................................. 23
11.3.13 Enable Privacy (Command code ‘BA’) .................................................................................................. 23
11.3.14 Disable Privacy (Command code ‘BB’) .................................................................................................. 23
11.3.15 Enable RandomID (Command code ‘BE’) ............................................................................................. 24
11.3.16 Disable RandomID (Command code ‘BF’)............................................................................................. 24
11.3.17 Fast Read Multiple blocks (Command code ‘C3’) .................................................................................. 24
Proprietary command .......................................................................................................................................... 25
11.4.1 Login (Command code ‘E4’) .................................................................................................................. 25
VICC state transition diagram ........................................................................................................................26
EM4237SLIC/SLIX Chip Floorplan ................................................................................................................27
Ordering Information ......................................................................................................................................28
14.1
14.2
15.
Error Code ........................................................................................................................................................... 10
Privacy mode ....................................................................................................................................................... 10
Security ............................................................................................................................................................... 11
9.3.1
Normal mode ......................................................................................................................................... 11
9.3.2
Secure Mode ......................................................................................................................................... 11
9.3.3
Login Procedure .................................................................................................................................... 12
9.3.4
Message Integrity Checks ..................................................................................................................... 12
9.3.5
User data Memory protection ................................................................................................................ 12
9.3.6
Page Protection Bits .............................................................................................................................. 12
Application Field identifier (AFI) ........................................................................................................................... 13
Electronic Article Surveillance (EAS) ...........................................................................................................13
EM4237SLIC/X ISO/IEC15693 Command Set ...............................................................................................14
11.1
12.
13.
14.
User’s data Memory .............................................................................................................................................. 9
Memory Configuration area ................................................................................................................................... 9
8.2.1
Unique Identifier (UID) ............................................................................................................................. 9
8.2.2
Random Serial Number ........................................................................................................................... 9
DIE Form: ............................................................................................................................................................ 28
Standard Versions: .............................................................................................................................................. 28
Package information .......................................................................................................................................29
15.1
15.2
15.3
15.4
Package mechanical dimensions: ....................................................................................................................... 29
Packing method ................................................................................................................................................... 29
Ordering Information – Package IC ..................................................................................................................... 29
EMDFN-02 Package information ......................................................................................................................... 30
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EM4237SLIC/SLIX
15.5
15.6
15.7
Package mechanical dimensions: ....................................................................................................................... 30
Packing method ................................................................................................................................................... 30
Ordering Information – Package IC ..................................................................................................................... 30
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EM4237SLIC/SLIX
1.
Definitions, abbreviations and symbols
Terms and definitions
downlink
tag to reader communication link
uplink
reader to tag communication link
modulation index
index equal to [a-b]/[a+b] where a and b are the peak and
minimum signal amplitude respectively.
Note 1: The value of the index may be expressed as a percentage.
subcarrier
a signal of frequency fs used to modulate the carrier of
frequency fc
byte
a byte consists of 8 bits of data designated b1 to b8, from the
most significant bit (MSB,b8) to the least significant bit
(LSB,b1)
Abbreviations
AFE
Analog Front-End
AFI
Application family identifier
ASK
Amplitude shift keying
CID
Card IDentifier
CRC
Cyclic redundancy check
DSFID Data storage format identifier
EOF
End of frame
LSB
Least significant bit
MSB
Most significant bit
RF
Radio Frequency
RFU
Reserved for future use
SOF
Start of frame
UID
Unique identifier
VCD
Vicinity Coupling Device (reader)
VICC
Vicinity Integrated Circuit Card (tag)
Symbols
fc
Frequency of operating field (carrier frequency)
Anticollision loop
Algorithm used to prepare for and handle a dialogue between
a VCD and one or more VICCs in its energizing field.
2.
Absolute Maximum Ratings
Parameter
Supply Voltage
Voltage at any other pin except
L1,L2
Storage temperature
Maximum AC current induced on
L1, L2
Electrostatic discharge1)
Symbol
3.
VPOS
Conditions
-0.3 to 7V
Vpin
VSS-0.3 to 1.98V
Tstore
-55 to +125°C
Icoil_RMS
50mA
VESD
This device has built-in protection against high static
voltages or electric fields; however, anti-static precautions
must be taken as for any other CMOS component. Unless
otherwise stated, proper operation can only occur when all
terminal voltages are kept within the specified voltage
range. Unused inputs must always be tied to a defined logic
voltage level.
2000V
Table 1
Note 2: Human Body Model (HBM; 100pF, 1.5k Ohms) between L1
and L2 terminals.
Stresses above these listed maximum ratings may cause
permanent damages to the device. Exposure beyond
specified operating conditions may affect device reliability or
cause malfunction.
Copyright  2015, EM Microelectronic-Marin SA
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Handling Procedures
4.
Operating Conditions
Parameter
AC peak current induced on
L1, L2 in operating conditions
Operating temperature
4
Symbol
Min
Icoilop
Top
-40
Max
Unit
30
mA
85
°C
Table 2
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EM4237SLIC/SLIX
5.
Electrical Characteristics
Operating conditions (unless otherwise specified):
Vcoil = 4Vpp
VSS = 0V
fc = 13.56MHz Sine Wave
Parameter
Symbol
Resonance Capacitor
Cr23
Coil limiting voltage
VCLIM
Top=25°C
Conditions
fc = 13.56 MHz,
U = 2Vrms
Icoil = 10mA
Min.
Typ.
Max.
Unit
22.3
23.5
24.6
pF
6
V
Modulator voltage drop-in
VModiso1
Icoil = 100uA
0.8
0.95
1.1
V
Modulator voltage drop-in
VModiso2
Icoil = 5mA
1.4
1.6
1.8
V
Ncy
erase all/ write all
105
Tret
Top=55°C after 105 cycles
60
NVM Cycling Endurance
NVM Retention
cycle
year
Table 3
6.
VICC to VCD timings
Timings in the table below represent minimum execution time in case of commands writing to NVM.
A VICC answer is sent in the appropriate following time slot specified by ISO/IEC 15693 (option_flag is not set) or after EOF
reception (option_flag is set).
Parameter
Symbol
(1 of 4 mode)
Execution time
(1 of 256 mode)
Execution time
Unit
Write Single Block
TWRBLOCK
4.66
4.7
ms
Lock Block
Tlock
6.67
6.7
ms
Write AFI
Twafi
6.67
6.7
ms
Lock AFI
Write DSFID
Lock DSFID
Tlafi
6.67
6.7
ms
Twdsfid
6.67
6.7
ms
Tldsfid
6.67
6.7
ms
Protect Memory Page
TPROTECT
6.67
6.7
ms
Enable Privacy
TTRANSPEN
6.67
6.7
ms
Disable Privacy
TTRANSPDIS
6.67
6.7
ms
TKEY
4.66
4.7
ms
Enable Random ID
TRANDOMEN
6.67
6.7
ms
Disable Random ID
TRANDOMDIS
6.67
6.7
ms
Set EAS
Tseas
6.67
6.7
ms
Reset EAS
Treas
6.67
6.7
ms
Lock EAS
Tleas
6.67
6.7
ms
Protect EAS
Tpeas
6.67
6.7
ms
Write EAS ID
Teasid
6.67
6.7
ms
Write EAS CFG
Teascfg
6.67
6.7
ms
Change Key (32 bits)
Table 4
In case of commands writing to NVM if option_flag is not set then downlink communication timings (VICC to VCD answer)
are defined according to ISO/IEC15693 are specified by the formulae:
t1nom + a multiple of 4096/fC with a total tolerance of ±32/ fC upon detection of the rising edge of the EOF of
the VCD request
Where
t1nom = 4352/ fC (320, 9 us)
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EM4237SLIC/SLIX
Fast Read Multiple Block command mode
The Fast Read Multiple Block mode enables a double speed downlink data rate which corresponds to a two times faster data
rate defined by the ISO/IEC15693-3. The Fast mode allows communication speeds of 53 kbit/s or 13 kbit/s depending on the
selected Low / High data rate.
The table below describes all timing combinations when the answer is sent in Fast mode.
Fast mode timing
[values are in number of clocks at the carrier
frequency or defined in microseconds]
SOF
Single subcarrier
High
data
rate
Dual subcarrier
Single subcarrier
Low
data
rate
Dual subcarrier
28.32us
DATA=0
12 (fc/32)
DATA1
4 (fc/32)
DATA=1
9.44us
9.44us
4 (fc/32)
EOF
DATA0
12 (fc/32)
28.32us
SOF
14 (fc/28)
12 (fc/32)
DATA1
DATA=0
4 (fc/32)
5 (fc/28)
DATA=1
5 (fc/28)
4 (fc/32)
EOF
DATA0
12 (fc/32)
14 (fc/28)
SOF
113.28us
48 (fc/32)
DATA1
DATA=0
16 (fc/32)
37.76us
DATA=1
37.76us
16 (fc/32)
EOF
DATA0
48 (fc/32)
SOF
56 (fc/28)
48 (fc/32)
DATA=0
16 (fc/32)
DATA=1
DATA0
DATA1
20 (fc/28)
20 (fc/28)
EOF
113.28us
16 (fc/32)
48 (fc/32)
56 (fc/28)
Table 5
Fast mode timing example - (high data rate, single subcarrier
28.32 us
12x (fc/32)
9.44 us
4x (fc/32)
SOF
4x (fc/32)
9.44 us
DATA=0
4x (fc/32)
9.44 us
9.44 us
4x (fc/32)
DATA=1
12x (fc/32)
28.32 us
EOF
Figure 2
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EM4237SLIC/SLIX
7.
Memory Organization
A memory block is composed of 4 bytes (32 bits).
A memory page is composed of 4 blocks.
The 1k bit user’s data NVM memory is organized in 32 blocks of 32 bits.
Bit31
Bit0
Block
User Block 0
0
User Block 1
1
User Block 2
2
User Block 3
3
Page
0
``````````
User Block 24 / EAS
24
User Block 25 / EAS
25
User Block 26 / EAS
26
User Block 27 / EAS
27
User Block 28 / EAS
28
User Block 29 / EAS
29
User Block 30 / EAS
30
User Block 31 / EAS
31
````````
6
Data
7
7
Memory
-----------------
14
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User’s
Table 6-1
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EM4237SLIC/SLIX
The 2k-bit user’s data NVM memory is organized in 64 blocks of 32 bits.
Bit31
Bit0
Block
User Block 0
0
User Block 1
1
User Block 2
2
User Block 3
3
Page
0
``````````
User Block 24 / EAS
24
User Block 25 / EAS
25
User Block 26 / EAS
26
User Block 27 / EAS
27
User Block 28 / EAS
28
User Block 29 / EAS
29
User Block 30 / EAS
30
User Block 31 / EAS
31
…
…
User Block 56
56
User Block 57
57
User Block 58
58
User Block 59
59
User Block 60
60
User Block 61
61
User Block 62
62
User Block 63
63
User Block 64
64
User Block 65
65
````````
6
7
-----------------
User’s
Data
…
14
Memory
14
15
16
Table 6-2
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EM4237SLIC/SLIX
NVM Memory Map description
8.
8.2.2 Random Serial Number
User’s data Memory
8.1
To insure a good level of customer privacy, the
EM4237SLIC/X offers an option to use random number
instead of fixed 32 bits of Unique Serial Number.
At delivery, the user’s data memory is access free and the
default memory content is set to 0. No protection in Read
or Write access is activated.
47
CAP
Memory Configuration area
8.2
This memory area contains chip configuration parameters
and serial number and cannot be accessed by the VCD.
46 42
IC Id
41
32
Customer ID
31
0
Random Serial Number
Table 7
The random part of UID is generated always after power
up and it is kept until next power down of the device.
8.2.1 Unique Identifier (UID)
UID with Random Serial Number is used during anticollision scheme and in address mode.
64-bit length according to ISO/IEC15693-3 and used to
guaranty the uniqueness of each device. It is programmed
at wafer test level and cannot be changed afterwards
The UID is defined in accordance with the figure below:
Real Unique ID programmed in the memory is returned to
ISO/IEC15693-3 command Get System Information in
secure mode.
UID format
MSB
63
In normal mode, Get System Information returns Random
ID number.
LSB
56
‘E0’
55
48
47
IC Mfg Code
0
This feature can be enabled in secure mode by Enable
Random ID and disabled by Disable Random ID
commands.
IC manufacturer
serial number
At chip delivery, chip random serial number feature is
disabled.
1 bit
CAP
5 bit
IC Id
10 bit
Customer Id
32 bit
Unique Serial Number
Figure 3
EM4237SLIC/X UID number comprises:

8 MSB’s indicates the Allocation Class number 'E0' as
defined by ISO/IEC15963-3 standard.

8 bit IC manufacturer code as defined in ISO/IEC
15963-3.
In
accordance with
ISO/IEC78166:1996/Amd.1, EM-Microelectronic is identified by
hexadecimal code 0x16.

48 bit IC manufacturer serial number as defined in
ISO/IEC 15963 and assigned by the IC manufacturer.
EM manufacturer serial number consists of the
following information, MSB to LSB:

1 bit capacitor value

5 bit IC Id (different for each member of the EM
ISO 15693 / ISO18000-3 family)

10 bit Customer Id

32 bit unique serial number

IC Id: “0x0D” corresponds to EM4237SLIC/X

CAP value is ‘0’ for 23.5pF version
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EM4237SLIC/SLIX
9.
9.1
Features and Modes
Error Code
EM4237SLIC/X supports only error code 0x0F.
If there is an error situation, the VICC answers with error message only in case a command was sent directly to this device. I.e.:

device is in select mode and command was sent with select bit

command was sent in address mode with UID of this device
In other cases, if there is an error situation, the device remains silent not to disturb transmission of addressed VICC.
Normal mode
Secure mode
Non
Addressed
Non
- addressed
/
addressed
Select
Addressed
/
Select
Unknown
No
No
No
No
command
response
response
response
response
Correct command
No
Error
No
Error
opcode but format
response
code
response
code
Incorrect parameters
No
Error
No
Error
(out of range, incorrect
response
code
response
code
error (RFU bits)
password)
Commands not supported
No
No
No
No
in current mode
response
response
response
response
Table 8
9.2
Privacy mode
The IC Privacy feature can be used in some label situations for privacy reasons.
When Privacy mode is enabled, the VICC remains silent to all commands except commands which are related to entering
secure mode.
As soon as device enters secure mode, it accepts all commands as usually. At chip delivery, the Privacy mode feature is
disabled.
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EM4237SLIC/SLIX
9.3
Security
EM4237SLIC/X implements the following security features:
 Unique 64-bit serial number
 32-bit password
 Lock mechanism for each user memory block
 Lock mechanism for DSFID, AFI and EAS
 Optional 32-bit password protected Destroy feature
 Optional 32-bit password protected Random ID number
 Optional 32-bit password protected Privacy mode
 Optional 32-bit password protected EAS
 Optional 32-bit password protected AFI
EM4237SLIC/X can be in two different access modes:

Normal mode

Secure mode
9.3.1 Normal mode
EM4237SLIC/X is in normal mode after every power up or when a secure mode is lost. In normal mode, a read and write
access to user memory is restricted by Page Protection or Lock bits. Some commands aren’t accepted in normal mode.
9.3.2 Secure Mode
Secure mode is intended to be used to access protected memory blocks.
If device enters the secure mode, it is allowed to:
 Read/write to all user memory even to blocks which are protected by Page Protection. The write access to the user data is
restricted only by active Lock block bits
 Change access rights to User Memory by changing corresponding Page Protection bits
 Access chip UID number in case Random ID feature is enabled
 Access to device functionalities in case that Privacy mode is enabled
 Change Key command in order to update the 32-bit password
 Enable or Disable Privacy Mode
 Enable or Disable Random ID
 Reset or Set the Electronic Article Surveillance feature (EAS)
 Activate Destroy feature
At chip delivery, the 32-bit password value is programmed to 0x00000000h.
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EM4237SLIC/SLIX
9.3.3 Login Procedure
Login command is used to enter the IC secure mode.
Exit Secure mode
Secure mode is lost when:
Power on reset occurs
Login done with wrong password value.
In all other cases, secure mode is kept. Even if an error occurs, secure mode is not lost.
9.3.4 Message Integrity Checks
CRC
In normal and in Secure mode, when Authentication level 0 or Authentication Level 1 is selected a standard CRC according to
ISO/IEC15693 is used in all commands.
9.3.5 User data Memory protection
In normal mode, the access to the user data memory is controlled by Lock bits and Page Protection bits.
In a secure mode, the access to user memory is restricted only by Lock bits. Pages restricted by Page Protection are accessible
(read and write).
At delivery, the user data memory is fully accessible in normal mode. There is neither protection of Read nor Write access
activated.
9.3.6 Page Protection Bits
The read/write access rights to user memory pages in normal mode are defined by appropriate Page Protection bits.
Page Protection bits for every memory page can be set to:




Reading as well as writing is allowed
Writing is protected. Reading is allowed
Reading is protected. Writing is allowed
Reading as well as writing is protected
In normal mode, if a memory page is read protected, the device masks data with all zeros in case of any read command.
In normal mode, if a memory page is protected against write the device answers with an error response if reader attempts to
write any block from the page.
In a secure mode, Page Protection bits are ignored and whole user memory can be accessed without Page Protection
restrictions. Page protection bits can be changed by Protect Memory Page command which is accepted only in a secure mode.
At chip delivery, page protection bits are reset, memory blocks and pages are access free.
9.3.7
Lock Block Mechanism
Lock block command is defined by ISO/IEC15693-3 standard. It defines which user’s data memory blocks are permanently
locked against programming.
If a memory page is protected by Write page protection, Lock block command to any block of this page is accepted only in
secure mode.
In normal mode, in case that a lock block command attempts to lock a block from a memory page which is protected by Write
protection, the chip returns an error code 0x0F.
In normal mode, in case that a lock block command attempts to lock a block from a memory page which is not protected by
Write protection, the chip executes normally the command and locks for ever the corresponding memory block.
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9.4
Application Field identifier (AFI)
The EM4237SLIC/X supports the AFI feature defined by the ISO/IEC15693-3 standard.
For security aspects, required in some applications, the AFI can be optionally password protected. In secure mode, AFI can be
rewritten if it was previously locked. At chip delivery, the default AFI value is set to 00h.
10. Electronic Article Surveillance (EAS)
The EM4237SLIC/X offers an Electronic Article Surveillance (EAS) feature for applications requiring a secure anti-theft
protection.
The EAS feature can be activated, disabled, locked or password protected via a complete set of custom commands.
The feature offers also a high level of flexibility by giving the possibility to set the EAS telegram value and set its length.
A complete EAS feature description is given at the corresponding command chapter.
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11. EM4237SLIC/X ISO/IEC15693 Command Set
Non addressed
Select
AFI
’01’
Inventory
■
-
-
-
■
-
’02’
Stay Quiet
-
■
-
-
-
-
‘20’
Read single block
-
■
■
■
-
■
’21’
Write single block
-
■
■
■
-
■
‘22’
Lock block
-
■
■
■
-
■
’23’
Read multiple blocks
-
■
■
■
-
■
‘25’
Select
-
■
-
-
-
-
’26’
Reset to ready
-
■
■
■
-
-
‘27’
Write AFI
-
■
■
■
-
■
‘28’
Lock AFI
-
■
■
■
-
■
‘29’
Write DSFID
-
■
■
■
-
■
‘2A’
Lock DSFID
-
■
■
■
-
■
‘2B’
Get System Information
-
■
■
■
-
-
‘2C’
Get Multiple block security status
-
■
■
■
-
-
‘A2’
Set EAS
-
■
■
■
-
■
■
‘A3’
Reset EAS
-
■
■
■
-
■
■
‘A4’
Lock EAS
-
■
■
■
-
■
■
‘A5’
Active EAS
-
■
■
■
-
■
■
‘A6’
Protect EAS
-
■
■
■
-
■
■
‘A7’
Write EAS ID
-
■
■
■
-
■
■
‘A8’
Write EAS CFG
-
■
■
■
-
■
■
‘B0’
Inventory Block Read
-
■
■
■
-
■
‘B4’
Change Key
-
■
-
■
-
■
■
‘B6’
Protect Memory Page
-
■
■
■
-
■
■
‘B8’
Get Multiple block protection status
-
■
■
■
-
-
‘B9’
Destroy
-
■
■
■
-
■
■
‘BA’
Enable Privacy
-
■
■
■
-
■
■
‘BB’
Disable Privacy
-
■
■
■
-
■
■
‘BE’
Enable Random ID
-
■
-
■
-
■
■
BF’
Disable Random ID
-
■
-
■
-
■
■
‘C3’
Fast Read Multiple Blocks
-
■
■
■
-
■
’E4’
Login
-
■
■
■
-
-
Command
Code
Inventory
Addressed
Option flag
Request Mode
Secure Mode required
Four sets of commands are defined by the ISO/IEC15693-3 standard: Mandatory, Optional, Custom and Proprietary.
Function
■
■: Implemented
- : Not applicable
-: Command is not executed in Normal mode.
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11.1
Command format
11.1.1 VCD request
The reader request is always composed of
 Start of frame (SOF)
 Data field composed of:
o Flags
o Command Opcode
o Parameters according to command
 Checksum fields
o CRC – in normal mode or secure mode
SOF
Flags
Command
opcode
Parameters (optional)
CRC
8 bits
8 bits
n bits
16 bits
EOF
Figure 4
Only data fields are described in further chapters. Only data fields which contain parameters are explicitly
described. The other simple commands without any parameters are described in ISO standard.
11.1.2 VICC answer format
VICC answer format is composed of:
 Start of frame
 Data field composed of
o Flags
o Parameters according to command
 Checksum fields
o CRC – in normal mode or secure mode
SOF
Flags
Parameters (optional)
CRC
8 bits
n bits
16 bits
EOF
Figure 5
Only data fields are described in further chapters.
The device answers to most of commands with standard ISO/IEC15693-3 answer format. If command was accepted and
executed error_flag is zero. If command wasn’t accepted or correctly executed error_flag is set and field with error code is
included in frame
Only answers different to standard answer formats are described in further chapters.
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11.2
Mandatory and Optional commands
See ISO/IEC15693-3 standard for detailed information about Mandatory and Optional commands.
Only ISO/IEC15693-3 Mandatory and Optional commands writing to the configuration memory area or do have a complement of
functionality are described below.
11.2.1 Inventory
This command is intended to be used in any mode (normal and secure).
11.2.2 Write single block
Supported Option Flag 0 – if operation is successful the VICC answers when it has completed the write operation after time
given by Twr and formula specified in chapter 6.
Supported Option Flag 1 - The VCD must wait minimum Twr time before sending EOF in order to ensure proper energy
condition to VICC during NVM programming.
If VCD tries to write a block locked against writing then the Error_flag is set.
If VCD in normal mode tries to write a block inside the page protected area protected against writing then the Error_flag is set.
11.2.3 Lock block
Supported Option Flag 0 – if operation is successful the VICC answers when it has completed the write operation after time
given by Tlock and formula specified in chapter 6.
Supported Option Flag 1 - The VCD must wait minimum Tlock time before sending EOF in order to ensure proper energy
condition to VICC during NVM programming.
11.2.4 Write AFI
Supported Option Flag 0 - if operation is successful the VICC answers when it has completed the write operation after time
given by Twafi.
Supported Option Flag 1 - The VCD must wait minimum Twafi time before sending EOF in order to ensure proper energy
condition to VICC during NVM programming.
11.2.5 Lock AFI
Supported Option Flag 0 - if operation is successful the VICC answers when it has completed the write operation after time
given by Tlafi.
Supported Option Flag 1 - The VCD must wait minimum Tlafi time before sending EOF in order to ensure proper energy
condition to VICC during NVM programming.
11.2.6 Write DSFID
Supported Option Flag 0 - if operation is successful the VICC answers when it has completed the write operation after time
given by Twdsfid.
Supported Option Flag 1 - The VCD must wait minimum Twdsfid time before sending EOF in order to ensure proper energy
condition to VICC during NVM programming.
11.2.7 Lock DSFID
Supported Option Flag 0 - if operation is successful the VICC answers when it has completed the write operation after time
given by Tldsfid.
Supported Option Flag 1 - The VCD must wait minimum Tldsfid time before sending EOF in order to ensure proper energy
condition to VICC during NVM programming.
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11.3
Custom commands
All custom commands send by VCD shall contain IC Mfg Code field as it defined by ISO/IEC15693-3.
At delivery the EAS mode is in a reset state.
11.3.1 Set EAS (Command code ‘A2’)
Set EAS command activates the EAS feature if the EAS feature is not locked. If EAS feature is locked then the Error_flag is set.
If the EAS feature is protected by a password then the command can only be executed in secure mode.
If the Option_flag is not set, the VICC returns its response when it has completed the write operation starting after time Tseas.
If Option_flag is set, the VICC waits for the reception of an EOF from the VCD and upon such reception returns its response.
Set EAS request format
Flags
8 bits
Set EAS
8 bits
IC Mfg code
8 bits
UID (optional)
64 bits
Figure 6
Set EAS response format when Error_flag is set
Flags
8 bits
Error Code
8 bits
Figure 7
Set EAS response format when Error_flag is NOT set
Flags
8 bits
Figure 8
11.3.2 Reset EAS (Command code ‘A3’)
Reset EAS command deactivates the EAS features if the EAS feature is not locked. If EAS feature is locked then the Error_flag
is set.
If the EAS feature is protected by a password then the command can be executed only in secure mode.
If the Option_flag is not set, the VICC returns its response when it has completed the write operation starting after time Treas.
If Option_flag is set, the VICC waits for the reception of an EOF from the VCD and upon such reception returns its response.
Reset EAS request format
Flags
8 bits
Reset EAS
8 bits
IC Mfg code
8 bits
UID (optional)
64 bits
Figure 9
Reset EAS response format when Error_flag is set
Flags
8 bits
Error Code
8 bits
Figure 10
Reset EAS response format when Error_flag is NOT set
Flags
8 bits
Figure 11
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11.3.3 Lock EAS (Command code ‘A4’)
Lock EAS command locks the current state of EAS mode (reset / set) and EAS ID.
If the EAS mode is protected by a password, then the command can be executed only in secure mode.
If the Option_flag is not set, the VICC returns its response when it has completed the write operation starting after time Tleas.
If Option_flag is set, the VICC waits for the reception of an EOF from the VCD and upon such reception returns its response.
Lock EAS request format
Flags
8 bits
Lock EAS
8 bits
IC Mfg code
8 bits
UID (optional)
64 bits
Figure 12
Lock EAS response format when Error_flag is set:
Flags
8 bits
Error Code
8 bits
Figure 13
Lock EAS response format when Error_flag is NOT set:
Flags
8 bits
Figure 14
11.3.4 Active EAS (Command code ‘A5’)
VICC answers to this command only if EAS state is set. If EAS is reset then VICC ignores this command and remains silent.
The EAS feature presents a high level of flexibility and permits a general or a selective EAS detection. To allow such operating
mode, two types of configuration have been implemented in the device.
If the Option Flag of the VCD request is set to 0:
Active EAS request format
Flags
8 bits
Active EAS
8 bits
IC Mfg code
8 bits
UID (optional)
64 bits
Figure 15
Active EAS response format when Error_flag is NOT set
EAS Telegram
See Note 4
Figure 16
Flags
8 bits
Note 4: If the EAS mode is in set state, the VICC return an EAS Telegram which length depends of the EASCfg option bit settings. EAS
Telegram length could be comprised between 32 up to 256 bits .
In case of an error, the device remains silent.
If the Option Flag of the VCD request is set to 1:
Active EAS request format
Flags
Active EAS
IC Mfg code
UID
(optional)
8 bits
8 bits
8 bits
64 bit
EAS ID
Mask Length
8 bits
EAS ID
Value
(optional)
0, 8 or 16
bits
Figure 17
Request parameter:

EAS Mask Length to identify how many bits of the EAS ID value are valid (multiple of 8 bits). Only those VICC will respond
with the EAS telegram which have stored the corresponding data in the EAS ID configuration (selective EAS) and if the
EAS mode is set. If the EAS ID Mask length is set to 0, the VICC answers with it EAS ID.

EAS ID value (optional)
Only the device which has the corresponding EAS ID and the EAS feature activated responds to the VCD command. In this
mode, the VCD performs a selective EAS.
In case of an error, the VICC remains silent.
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Active EAS response format when Error_flag is NOT set and the EAS Mask length is not equal to 0
EAS Telegram
See Note 7
Figure 18
Flags
8 bits
Note 7: At delivery, the EAS Telegram value is 00h and its length is set to 32 bits (memory block 24).
The EAS Telegram length depends on the EAScfg parameter settings thus could be comprised between 32 up to 256 bits.
When the VICC send its EAS Telegram to the VCD, it starts to read memory block content defined by EAScfg (see table 11) up to the last
memory block (block 31). .
The EAS Telegram value is defined by the contents of user’s memory block 24 up to 31.
The EAS Telegram value can be updated by writing previously blocks 24 to 31 using the Write single block command defined by ISO15693
standard.
Active EAS response format when Error_flag is NOT set and the EAS Mask length is equal to 0
EAS ID
16 bits
Figure 19
Flags
8 bits
In case of an error or if the EAS mode is disabled, the device remains silent.
11.3.5 Protect EAS (Command code ‘A6’)
Protect EAS command activates the EAS password protection.
The command can be executed only in secure mode.
If the Option_flag is not set, the VICC returns its response when it has completed the write operation starting after time Tpeas.
If Option_flag is set, the VICC waits for the reception of an EOF from the VCD and upon such reception returns its response.
Protect EAS request format
Flags
8 bits
Protect EAS
8 bits
IC Mfg code
8 bits
UID (optional)
64 bits
Figure 20
Protect EAS response format when Error_flag is set
Error code
8 bits
Figure 21
Flags
8 bits
Protect EAS response format when Error_flag is NOT set
Flags
8 bits
Figure 22
11.3.6 Write EAS ID (Command code ‘A7’)
Write EAS ID command writes a new EAS Identifier Number.
If the EAS parameters are protected by a password then the command can be executed only in secure mode.
If the Option_flag is not set, the VICC returns its response when it has completed the write operation starting after time Teasid.
If Option_flag is set, the VICC waits for the reception of an EOF from the VCD and upon such reception returns its response.
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Write EAS ID request format
Flags
Write EAS ID
IC Mfg code
UID (optional)
8 bits
8 bits
8 bits
64 bits
EAS ID
value
16 bits
Figure 23
Write EAS ID response format when Error_flag is set
Error code
8 bits
Figure 24
Flags
8 bits
Write EAS ID response format when Error_flag is NOT set
Flags
8 bits
Figure 25
11.3.7 Write EAScfg (Command code ‘A8’)
Write EAScfg command configures the EAS telegram data length (EAScfg).
If the EAS feature is password protected then the command can only be executed in secure mode.
If the Option_flag is not set, the VICC returns its response when it has completed the write operation starting after time Teascfg.
If Option_flag is set, the VICC waits for the reception of an EOF from the VCD and upon such reception returns its response.
Write EAScfg request format
Flags
Write EAScfg
IC Mfg code
UID (optional)
8 bits
8 bits
8 bits
64 bits
EAScfg
value
8 bits
Figure 26
Note 8: only two LSB bits of EAScfg are used.
EAScfg option bits
bit 1
0
0
1
1
bit 0
0
1
0
1
EAS message length
256 bit EAS message (user block 24 to 31)
128 bit EAS message (user block 28 to 31)
64 bit EAS message (user block 30 to 31)
32 bit EAS message (user block 31)
Table 9
Write EAScfg response format when Error_flag is set
Error code
8 bits
Figure 27
Flags
8 bits
Write EAScfg response format when Error_flag is NOT set
Flags
8 bits
Figure 28
11.3.8 Inventory block Read (Command code ‘B0’)
When receiving an Inventory block Read command, the VICC performs the same as in the anti-collision sequence, except that
instead UID number and DSFID, the VICC returns requested memory content.
If an error is detected, the VICC remains silent.
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If the Option_flag is not set, the VICC returns n blocks of data.
If the Option_flag is set to 1, the VICC returns n blocks of data, part of the UID number which is not part of the mask and DSFID
number.
Inventory Block Read request format
Flags
8 bits
Inventory
Read
Block
8 bits
IC Mfg
code
Optional AFI
Mask length
Mask value
First block
Number
8 bits
8 bits
8 bits
0 to 64 bits
8 bits
Number
of blocks
8 bits
Figure 29
Inventory flag must be set to 1.
Meaning of flags 5 to 8 is according to table 5 in ISO/IEC15693-3.
The number of blocks in the request is one less than the number of blocks that the VICC returns in its response.
Inventory Block Read response if the Option Flag in the request is set to 0
data
Repeated as needed
Flags
8 bits
Figure 30
The EM4237SLIC/X reads the requested blocks and sends back their value in the response.
The mechanism and timing of the Inventory Read Block commands performs the same as at the ISO/IEC15693-3 Inventory
command (Clause 8).
Inventory Block Read response if the Option Flag in the request is set to 1
Flags
DSFID
8 bits
8 bits
8 bits
Rest of UID which is not part of the mask and slot
number
0 to 64 bits
Multiple of 8 bits
Data
Data
Repeated as needed
Figure 31
The VICC reads the requested blocks and sends back their value in the response.
Additionally the bytes of the UID, which are not part of the mask and the slot number in case of 16 slots, are returned. Instead of
a padding with zeros up to the next byte boundary the corresponding bits of the UID are returned.
The mechanism and timing of the Inventory Block Read command perform the same as the ISO/IEC15693-3 Inventory
command (Clause 8).
If the sum of first block number and number of block exceeds the total available number of user blocks the number of
transmitted blocks is less than the requested number of blocks, which means that the last returned block is the highest available
user block followed by the 16-bit CRC and the EOF.
11.3.9 Change Key (Command code ‘B4’)
Change Key command updates the current password or key value by a new value. The command contains a data field (Key
identifier) which indicates which item will be modified.
The Change Key command can be executed only in secure mode and only in an addressed or selected mode.
If the Option_flag is not set, the VICC returns its response when it has completed the write operation starting after time given by
TKEY.
If Option_flag is set, the VICC waits for the reception of an EOF from the VCD and upon such reception returns its response.
The VCD must wait minimum TKEY time before sending EOF in order to ensure proper energy condition to VICC during NVM
programming.
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Change Key Request Format
Flags
Change
Key
IC Mfg code
UID
(optional)
Key
Identifier
Password
8 bits
8 bits
8 bits
64 bits
8 bits
32 bits
Figure 32
Key Identifier description
Key identifier
00h
01h – FFh
32-bit Password to be changed
Password
RFU
Table 10
11.3.10
Protect Memory Page (Command code ‘B6’)
The Protect Memory Page command defines the protection condition of a user’s data memory page.
The command can be executed only in secure mode.
If there is error response the operation is not executed.
If the Option_flag is not set, the VICC returns its response when it has completed the write operation starting after time given by
TPROTECT.
If Option_flag is set, the VICC waits for the reception of an EOF from the VCD and upon such reception returns its response.
The VCD must wait minimum TPROTECT time before sending EOF in order to ensure proper energy condition to VICC during NVM
programming.
Protect Memory Page request format
Flags
Protect
Memory Page
IC Mfg
code
UID
(optional)
Page Nb
Protect
Status
8 bits
8 bits
8 bits
64 bits
8 bits
8 bits
Figure 33
Protect Status definition
Protect

Status
Description

00h
 Memory page is readable and writable

01h
 Memory page is Read protected

10h
 Memory page is Write protected

11h
 Memory page is Read and Write protected
Table 11
11.3.11 Get multiple block protection status (Command code ‘B8’)
When receiving the Get multiple block protection status command, the VICC sends back the block protection status.
The number of blocks in the request is one less than the number of block protection status that the VICC returns in its response.
Get Multiple Block Protection Status request format
Flags
Get Multiple
Block
Protection
Status
IC Mfg
code
UID
(optional)
First Block Number
Number of
blocks
8 bits
8 bits
8 bits
64 bits
8 bits
8 bits
Figure 34
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Get Multiple Block Protection Status response when Error flag = 0
Flags
Block protection status
8 bits
8 bits
Repeated as needed
Figure 35
Block Protection Status description
bit
Description
0
if ‘1’ then locked by Lock bit
1
if ‘1’ then blocked against reading
2
if ‘1’ then blocked against writing
not used (always ‘0’)
7-3
Table 12
11.3.12 Destroy (Command code ‘B9’)
This command deactivates forever the device after next chip POR. The Destroy bit is set and the device will no longer react to
any command from a VCD.
The command is password/secret Key protected thus it can only be executed in secure mode and when the device is in an
addressed or selected mode.
If an error response is received by VCD, this means that the destroy operation was not executed.
If the Option_flag is not set, the VICC returns its response when it has completed the write operation starting after time
Tdestroy.
If Option_flag is set, the VICC waits for the reception of an EOF from the VCD and upon such reception returns its response.
Destroy request format
Flags
Destroy
IC Mfg code
8 bits
8 bits
8 bits
UID
(optional)
64 bits
Figure 36
Destroy response format when Error_flag is set
Error Code
8 bits
Figure 37
Flags
8 bits
Destroy response format when Error_flag is NOT set
Flags
8 bits
Figure 38
11.3.13 Enable Privacy (Command code ‘BA’)
The Enable Privacy command activates the Chip Privacy mode.
The command can be executed only in secure mode.
If the Option_flag is not set, the VICC returns its response when it has completed the write operation starting after time given by
Ttranspen.
If Option_flag is set, the VICC waits for the reception of an EOF from the VCD and upon such reception returns its response.
The VCD must wait minimum Tptranspen time before sending EOF in order to ensure proper energy condition to VICC during
NVM programming.
11.3.14 Disable Privacy (Command code ‘BB’)
The Disable Privacy command disables Chip Privacy mode.
The command can be executed only in secure mode.
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If the Option_flag is not set, the VICC returns its response when it has completed the write operation starting after time given by
Ttranspdis.
If Option_flag is set, the VICC waits for the reception of an EOF from the VCD and upon such reception returns its response.
The VCD must wait minimum Ttranspdis time before sending EOF in order to ensure proper energy condition to VICC during
NVM programming.
11.3.15 Enable RandomID (Command code ‘BE’)
This command enables RandomID feature. The change takes effect immediately when command is executed.
When enabled, a part of device’s UID is randomly generated after each power up. After each power up the device will have
different UID to avoid traceability of the VICC.
Random ID is used in all commands like Inventory and in commands where UID is used (address mode). Get System
Information returns Random ID in normal mode.
The programmed (fix) Unique ID is returned to Get System Information command in Secure mode.
Random ID is used for command addressing even in these modes.
The command can only be executed in secure mode in Addressed and Selected mode.
If there is error response the operation is not executed.
If the Option_flag is not set, the VICC returns its response when it has completed the write operation starting after time given by
TRANDOMEN.
If Option_flag is set, the VICC waits for the reception of an EOF from the VCD and upon such reception returns its response.
The VCD must wait minimum TRANDOMEN time before sending EOF in order to ensure proper energy condition to VICC during
NVM programming.
11.3.16 Disable RandomID (Command code ‘BF’)
This command disables RandomID feature. The change takes effect immediately when command is executed.
The command can only be executed in secure mode in Addressed and Selected mode.
If there is error response the operation is not executed.
If the Option_flag is not set, the VICC returns its response when it has completed the write operation starting after time given by
TRANDOMDIS.
If Option_flag is set, the VICC waits for the reception of an EOF from the VCD and upon such reception returns its response.
The VCD must wait minimum TRANDOMDIS time before sending EOF in order to ensure proper energy condition to VICC during
NVM programming.
11.3.17 Fast Read Multiple blocks (Command code ‘C3’)
The command request format and framing are similar to the ISO/IEC15693 optional Read Multiple blocks command.
Command request format:
Flags
Fast
Read Multiple blocks
IC Mfg code
UID
(optional)
First
Block
number
Number
of blocks
8 bits
8 bits
8 bits
64 bits
8 bits
8 bits
Figure 39
Request parameters:
 First block number
 Number of blocks
The command answer format and framing are the same as in the case of Read Multiple blocks command. However the
command answer data rate is realized in Fast mode as described in Table 5.
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EM4237SLIC/SLIX
11.4
Proprietary command
11.4.1 Login (Command code ‘E4’)
Login command enters secure mode. Login command has to include the 32-bit password. Login command is not successful if
the password value is incorrect. In that case an error code is returned. After a successful Login, the VICC enters secure mode
In all other cases, the secure mode is kept. Even if an error occurs secure mode is not lost.
Login request format
Flags
Login
IC Mfg
code
UID
(optional)
Password
8 bits
8 bits
8 bits
64 bits
32 bits
Figure 40
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EM4237SLIC/SLIX
12. VICC state transition diagram
Power-Off
In Field
Out of
field
Out of field
Any other
command
where
Select_flag is
not set
Ready
Out of field
Reset to Ready where
Select_flag is set or
Select (different UID)
Reset to
ready
Select (UID)
Stay Quiet (UID)
Selected
Select (UID)
Any other command
Stay quiet (UID)
Quiet
Any other command where
the Address_flag is set AND
wher Inventory_flag is not set
Figure 41
Note 10: The VICC state transition diagram shows only valid transitions. In all other cases the current VICC state remains unchanged. When
the VICC cannot process a VCD request (e.g. CRC error, etc.), it stays in its current state.
Note 11: The intention of the state transition method is that only one VICC should be in the selected state at a time.
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EM4237SLIC/SLIX
13. EM4237SLIC/SLIX Chip Floorplan
662 um
15um
76 um
68 um
68 um
4
3
20 um
open to open
12 um
6 um Metal to Metal
Bump to Bump
272 um
101 um
15um
15um
662 um
5
101 um
68 um
1
2
294 um
68 um
15um
PAD opening
PAD Metal
Gold Bump
Figure 42
Pin description
Pin
Name
I/O
1
COIL1
ANA
Description
Antenna terminal
2
COIL2
ANA
Antenna terminal
3
TEST_IO
I/O
Test purposes – non-active pad
4
TEST_IO
I/O
Test purposes – non-active pad
5
TEST_IO
I/O
Test purposes – non-active pad
Table 13
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EM4237SLIC/SLIX
14. Ordering Information
From wafer from delivery, please refer to EM4237SLIC/SLIX wafer specification document.
14.1
DIE Form:
EM4237SLIC/SLIX V1 WS 3
-
E
%%%
Circuit Nb:
EM4237SLIC (1K-bit)
EM4237SLIX (2K-bit)
Version:
V1 = 23.5pF resonant capacitor
Customer Version:
%%% = only for custom specific version
Pads / Bumps:
“ “ = Standard Pads
E = Gold bumps – 17.5um
Die form:
WW = Wafer
WS = Sawn Wafer/Frame
Thickness:
3 = 3 mils (75um)
6 = 6 mils (152um)
29 = 29 mils (736um)
Figure 43
14.2
Standard Versions:
The versions below are considered standards and should be readily available. For the other delivery form, please contact EM
Microelectronic-Marin S.A. Please make sure to give the complete part number when ordering.
Part Number
EM4237SLICV1WS3E
EM4237SLICV1WS6E
EM4237SLICV1WW29
Package / Die Form
Sawn wafer, 3 mils thickness
Sawn wafer, 6 mils thickness
Un-Sawn wafer, 29 mils thickness
Delivery form / Bumping
Gold bump
Gold bump
Standard aluminium pads
Table 14
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EM4237SLIC/SLIX
15. Package information
2 leads Plastic extremely thin small outline package; body 1.1 x 1.4 x 0.46 mm: EMDFN403
15.1
Package mechanical dimensions:
All dimensions in inches [mm].
Figure 44
15.2
Packing method
Packing method is available on loose form (Aluminum canisters)
15.3
Ordering Information – Package IC
Part Number
EM4237SLICV1DF403C+
IC
Reference
EM4237SLIC
IC Resonant
capacitor
23.5pF
Delivery
format
Loose form
Remarks
1 kbit version
Table 15
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EM4237SLIC/SLIX
15.4
EMDFN-02 Package information
Figure 45
15.5
Package mechanical dimensions:
Size
Tolerance
A
0.76
0.10
D
2.20
0. 15
E
1.78
0.15
B
1.07
0.05
l1
0.71
0.05
l2
1.08
0.05
Table 16
Note: all dimensions in mm.
15.6
Packing method
The following packing method is available:
 Loose form (Aluminum canisters)
15.7
Ordering Information – Package IC
Part Number
EM4237SLICV1DF02C+
IC
Reference
EM4237SLIC
IC Resonant
capacitor
23.5pF
Delivery
format
Loose form
Remarks
1k-bit version
Table 17
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EM4237SLIC/SLIX
Product support
Check our web site under Products/RF Identification section. Questions can be sent to [email protected]
EM Microelectronic-Marin SA (“EM”) makes no warranties for the use of EM products, other than those expressly contained in EM's applicable
General Terms of Sale, located at http://www.emmicroelectronic.com.
EM assumes no responsibility for any errors which may have crept into 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 rights of EM are granted in connection with the sale of EM products, neither expressly nor
implicitly.
In respect of the intended use of EM products by customer, customer is solely responsible for observing existing patents and other intellectual
property rights of third parties and for obtaining, as the case may be, the necessary licenses.
Important note:
The use of EM products as components in medical devices and/or medical applications, including but not limited to, safety and life
supporting systems, where malfunction of such EM products might result in damage to and/or injury or death of persons is expressly
prohibited, as EM products are neither destined nor qualified for use as components in such medical devices and/or medical
applications.
The prohibited use of EM products in such medical devices and/or medical applications is exclusively at the risk of the customer.
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