The FM4442 chip is completely compatible with SLE5542 / SLE4442. The performance and usage of the two chips are the same. As the price of FM4442 chip is very competitive, so FM4442 chip is used in many system instead of SLE4442 chip.

FM4442 is the memory card chip developed by Shanghai FM Co.,Ltd.. This chip uses 0.6µm CMOS EEPROM process, has 256×8 Bits EEPROM with write protect fuction and programmable security code. With its contact configuration in accordance to ISO standard 7816 (sychronous transmission), FM4442 can be widely used in different types of IC menory cards.