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FM4442 is compatible with SLE4442. The function is absolutely same! The great advantage is the rather competitive price! Moreover, we are the main distributor of Fudan! So we nearly have millions of sale volume every year!

General Description:

FM4442 is the memory card chip which 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.

Technical Features:

  • 256 x 8 bit EEPROM organization
  • Byte-wise addressing
  • Irreversible byte-wise write protection of lowest
  • 32 x1 bit organization of protection memory
  • Two-wire link protocol
  • End of processing indicated at data output
  • Answer-to-Reset according to ISO standard 7816-3(B type)
  • EEPROM programming time 2.5 ms per byte for both
  • Minimum of 100,000 write/erase cycles
  • Data retention time :>10 years
  • Contacts configuration and serial interface according to ISO 7816 standard(synchronous transmission)

Ordering Information

Delivery Terms

  • Samples: It’s free of charge and could be sent within 1-2 working days.
  • <10K pcs: Within 3-4 working days
  • <100K pcs: Within 6-7 working days
  • <1KK pcs: Within 15 working days.
  • >1KK pcs: On request

Payment Terms

  • TT in advance or LC
  • Others on requested

Why buy from us ?

  • Reply you within 12 hours at most time
  • Unsurpassable competitive price
  • Large quantity inventory always
  • No MAQ’s limit for FM4442 chips
  • Strong at customization on request
  • Experience and expertise
  • Fast delivery and strong package
View Package!

Contact Us

Shanghai RealSmart Technologies Co., Ltd.

R201, Bldg E, No. 50, Lane 2080 Lianhua Rd, Minhang Dist, Shanghai 201103, China

Tel: +86 21 6432 6941

Fax: +86 21 6432 6942


Tel: +86 21 6432 6941