MM23SC221

MM23SC221

• MM23SC221 is a Eurochip compatible 221-bit EEPROM Intelligent Counter with Security Logic.

 

• MM23SC221 consists of 221 bits EEPROM, 16 bits ROM & security features suitable for prepaid telephone cards.

 

• The EEPROM and ROM areas are used to store identification data, user data and counter.

 

• MM23SC221 is also equipped with security features, which include anti tearing protection, voltage and frequency sensor detection and anti-hacking preventing signal or physical analysis. 


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