D.O RFID Tag Manufacturer produce many contact smart card .The SLE4428 is a standard, low-cost EEPROM memory smartcard with 1K bytes of available storage, an irreversible write protection feature and a 2-byte programmable security code.This card is manufactured using the fully compatible FM4428 chip.

SLE5528 SLE4428 ISO 7816 smart card secure blank smart IC card  Features:

1024 x 8 bit EEPROM organization

Byte-wise addressing

Irreversible byte-wise write protection

1024 x 1 bit protection memory organization

Serial three-wire bus

End of programming indicated on data output

Minimum of 104 write/erase cycles

Data retention for minimum of ten years

Contact configuration and serial interface in accordance to

ISO standard 7816 (synchronous transmission)

Additional Feature of SLE 4428 Smart Card

Data can only be changed after entry of the correct

2-byte programmable security code (PSC)