Smart Card SLE4428

The SLE4428 is a standard, low-cost EEPROM memory smartcard with 1K bytes of available storage, with an irreversible write protection feature and a 2-byte programmable security code. Additionally to the above functions this version has a PSC verification logic. All the memory, except for the PSC, can always be read. The memory can be written or erased only after PSC verification. The error counter can always be written. After eight successive incorrect entries the error counter will block any subsequent attempt at PSC verification and hence any possibility to write and erase.
Features :
 Product ID : SLE4428
 Color : White
 Dimension 85 x 54 x 0.76 mm
 1024 x 8 bit EEPROM organization
 Byte-wise addressing
 Irreversible byte-wise write protection
 Serial three-wire bus
 End of programming indicated on data output
 erase cycles more than 100,000 times
 Each write / erase time 5MS
 Data retention for minimum of ten years
 Contact configuration and serial interface in accordance to
 Temperature -20 to 80c
 ISO standard 7816 (synchronous transmission)
 Additional Feature of SLE 4428 Smart Card :
   1)Data can only be changed after entry of the correct
   2)2-byte programmable security code (PSC) 
 
 
Applications :  
 Widely used in member system, Medicare card, Electronic lock, Prepaid water meter and Ammeter, Campus one-card system