IZ4436
Intelligent 221-Bit EEPROM Counter
for > 20000 Units with Security Logic
and High Security Authentication
Features
221 bit EEPROM and 16 bit mask-programmable ROM
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104 bit user memory fully compatible with IZ4406:
• 64 bit Identification Area
• 40 bit Counter Area including 1 bit for personalization
• 133 bit additional memory for advanced features
• 4 bit Counter Backup (anti-tearing flags)
• 1 bit Initiation Flag for Authentication Key.2
• 16 bit Data Area 1 for free user access
• 48 bit Authentication Key.1
• either 64 bit Data Area 2 for user defined data or 48 bit Authentication Key.2
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Counter with up to 33352 count units fully compatible with IZ4406
• Due to testing purposes a maximum of 21064 count units is guaranteed
Counter tearing protection
• Backup feature activated at choice
High security authentication module
• Random number as challenge
• Individual secret Authentication Key.1
• Optional individual secret Authentication Key.2
• Calculation of up to 16 bit response
• Calculation of a 16 bit response within 30 ms at a clock frequency of 100 kHz
Transport Code protection for delivery
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Chip layout of security relevant areas protected against physical / electrical signal
analysis
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Supply voltage 5 V ± 10%
Supply current < 5 mA
EEPROM programming time 5 ms
ESD protection 4000 V
Endurance minimum of 105 write / erase cycles per bit
Data retention for minimum of 10 years
Pin Definitions and Functions
Parameter
Symbol
VCC
RST
CLC
GND
N.C.
I/O
Test Condition
C1
C2
C3
C5
C6
C7
Supply voltage
Control input (reset)
Clock input
Ground
Not connected
Bidirectional data line (open drain)
IZ4406 comes as an M3 wire-bonded module for embedding in plastic cards and as a die
for customer packaging.
