General Description

FM4442 is the memory card chip developed by Shanghai FM Co., Ltd. This chip has 256×8 Bits

EEPROM with write protect function and programmable security code. With its contact configuration in accordance to ISO standard 7816 (synchronous transmission), FM4442 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

• 256×8-bits EEPROM organization；

• Byte-wise addressing

• 32×1-bit organization of protection memory

• Irreversible byte-wise write protection of lowest 32 addresses (Byte 0 ... 31)

• Two-wire link protocol

• End of processing indicated at data output

• Answer-to-Reset acc. to ISO standard 7816-3

• Data retention for minimum of ten years

• Programming time 2.5 ms per byte for both erasing and writing

• Contact configuration and serial interface in accordance with ISO standard 7816

(Synchronous transmission)

• Data can only be changed after entry of the correct 3-byte programmable security code

(security memory)

• Compatible SLE4442

Chip Parameters

Card Parameters