General Description

FM4428 is the memory card chip developed by Shanghai FM Co, Ltd.. This chip uses 0.6μm CMOS EEPROM process, has 1K × 8Bit EEPROM with write protect function and programmable security code, its contact configuration is in accordance to ISO standard 7816 (Synchronous Transmission), FM4428 can be widely used in different types of IC memory cards

Key applications

• Payment

• Access control 

• Medicare

Customizations

• Printing: off-set print, silk-screen print, digital print 

• Code printing: thermal print, inkjet spray print, DOD UV print, embossing print, laser print, etc.

• Magnetic stripe: LoCo 300 Oe, HiCo 2750 Oe or 4000 Oe

• Special crafts: Hot-stamping, Hole punching, Signature panel, Scratching off, Hologram, Crystal epoxy surface, metal ring, etc.

• Coding: Encoding, Encryption,  etc.

Chip Features

• 1024×8 bit EEPROM organization

• Byte-wise addressing

• Irreversible byte-wise write protection 

• 1024×1 bit protection memory organization

• Serial three wire bus

• Minimum of 100,000 write/erase cycles

• Data retention for at least 10 years

• Contact configuration and serial interface in accordance to ISO standard 7816 (synchronous Transmission)

• Only after entry of the correct 2Byte programmable security code (PSC) data can be changed

• Compatible with SLE4428

Chip Parameters

Card Parameters