The SLE-4442 Secure Memory Card is one of the most popular "Smart Memory Cards" in the world.
High quality and low price.

The SLE-4442 Secure Memory Card is one of the most popular "Smart Memory Cards" in the world.  This chip includes an intelligent 256-Byte EEPROM with Write Protect Function and Programmable Security Code (PSC).  This chip contains and EEPROM organized 1024 x 8 bit offering the possibility of programmable write protection for each byte. Reading of the whole memory is always possible. The memory can be written and erased byte by byte .

Data can only be changed after entry of the correct 3-byte programmable security code (security memory).