IZE4436

Intelligent 221-Bit EEPROM Counter for > 20000 Units with Security Logic and High Security Authentication w a D ‰ .221 bit EEPROM and 16 bit mask-programmable ROM wbit user memory fully compatible with IZ4406: 104 w 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 Due to testing purposes a maximum of 21064 count units is guaranteed ‰ ‰ Features S a t e e h U 4 t m o .c IZE4436 ‰ Counter with up to 33352 count units fully compatible with IZ4406 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 Chip layout of security relevant areas protected against physical / electrical signal analysis 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 Fun...