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SLE5542 is the updated version of SLE4442, which is 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 giant player for such chips! Except the above advantages, fast delivery, strong package etc. always is our duties!

General Description:

INTELLIGENT 256 BYTE EEPROM with Write Protection and Programmable Security Code (PSC) and with ISO 7816 smart card interface.SLE 5542 is fully functional compatible with SLE 4442 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,Infi neon 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 Infineon’s advanced FCOS (Flip Chip On Substrate) module package.

Technical Features:

  • 100% functional compatibility to SLE 4442
  • 256 x 8 bit EEPROM organization of Data Memory
  • 32 x 1 bit Protection Memory
  • Data Memory (addresses 0.255) alterable only after verification of 3-Byte Programmable Security Code (PSC)
  • Two-wire link protocol
  • Contact configuration and Answer-to-Reset (synchronous transmission) in accordance to standard ISO/IEC 7816
  • Sophisticated electrical characteristics
  • Advanced 1.2 µm 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 6-7 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
  • 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