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FM4428 is compatible with SLE4428. 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:

FM4428 is the memory card chip which uses 0.6µm CMOS EEPROM process, has 1K*8 bit EEPROM with write protect function and programmable security code.With its contact configuration in accordance to ISO standard 7816 (Synchronous transmission), FM4428 can be widely used in different types of IC memory cards.

Technical Features:

  • 1024 x 8 bit EEPROM organization
  • Byte-wise addressing
  • Irreversible byte-wise write protection of every Byte
  • 1024 x1 bit organization of protection memory
  • Serial three-wire link
  • End of processing indicated at data output
  • Minimum of 100,000 write/erase cycles
  • Data retention time :>10 years
  • Contacts configuration and serial interface according to ISO 7816 standard
  • Data can only be changed after entry of the correct 2-byte
  • Programmable security code

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 FM4428 chips
  • Strong at customization on request
  • Experience and expertise
  • Fast delivery and strong package
View Package!

Contact Us

Shanghai RealSmart Technologies Co., Ltd.

Rm 205, No.1768. Yishan Road, MinHang District, Shanghai 201103, P.R China

Tel: +86 21 6432 6941

Fax: +86 21 6432 6942


Tel: +86 21 6432 6941   Fax: +86 21 6432 6942

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