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SLE5528 is updated version of SLE4428 which is one of the most common chip that used in security area. The striking advantages are stable function and the most cost-efficient price! Of course, RealSmart is the main player for such chips!

General Description:

INTELLIGENT 1024BYTE EEPROM with Write Protection and Programmable Security Code (PSC) and with ISO 7816 smart card interface. SLE 5528 is fully functional compatible with SLE 4428 and can easily replace the previous product in any application.To ensure the future availability of this product type, whilst still ensuring backward compatibility to previous products, Infineon has migrated the data carrier family to the IMEM CMOS technology.IMEM is conceived for security applications and offers unsurpassed physical and electrical protection schemes. IMEM is recommended for use with Infi neon’s advanced FCOS (Flip Chip On Substrate) module package.

Technical Features:

  • 100% functional compatibility to SLE 4428
  • 1024 x 8 bit EEPROM organization of Data Memory
  • 1024 x 1 bit Protection Memory
  • Data Memory alterable only after verifi cation of 2 Byte PSC
  • PSC verifi cation trials limited by Error Counter
  • Ambient temperature range -40 to +100°C
  • EEPROM endurance of minimum 10,000 write / erase cycles
  • Data retention of minimum 10 years
  • Advanced CMOS-technology optimised for security layout


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 6-6 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
  • 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