Product Name: SLE4442 Secure Memory Smart Card (White PVC Cards) The main features of the SLE4442 are: 1. Synchronous communication protocol, ISO 7816 compatible 2. EEPROM size is 256 bytes split into the following areas: a. 26 bytes for card manufacturer data b. 2 bytes for card issuer reference c. 4 bytes for card identification data d. 224 bytes for main user data 3. Access to the memory is protected by a 3 byte secret code for data write only 4. Free Read of Data (except PIN) 5. Answer to reset according to ISO 7816/3 standard 6. Data retention is up to 10 years 7. Non reversible byte-wise write protection of lowest 32 addresses (byte 0 ~31) 8. 20 + 50 operating range