SLE5542 is the updated version of SLE4442, which is one of the most popular chip card that used in security area, such as access control, loyalty, e-ticket, etc…Also flat surface, good printing, accurate chip position, strong production capacity, etc…are always our duties!
SLE 5542 , Intelligent 256-Byte EEPROM with Write Protection function and Programmable Security Code
SLE 5542 replaces SLE 4442
SLE 5542 is 100% functional compatible to SLE 4442
256 x 8-bit EEPROM organization of Data Memory
32 x 1-bit Protection Memory


1. Byte-wise write protection of first 32 addresses (byte 0....31) of Data Memory
2. Manufacturer Code for unique identification of application
Data Memory (addresses 0....255) alterable only after verification of 3 Byte Programmable Security Code (PSC)
Advanced CMOS-technology optimised for security layout



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