Infineon SLE Smartcard – AC-SLE-5542

​The Infineon SLE Smartcard is a contact-based smart card featuring the Infineon SLE 5542 chip. This chip includes 256 bytes of EEPROM memory and a 4-byte programmable security code (PSC), making it suitable for secure data storage and access control applications.​

Key Features:

• Memory Capacity: 256 bytes of EEPROM, organized into 32 sectors of 8 bytes each.​

• Security Code: 4-byte PSC that controls write access to the memory, ensuring data integrity.​

• Compatibility: Compliant with ISO/IEC 7816 standards for contact smart cards.​

• Durability: Designed for high endurance with over 100,000 write/erase cycles and data retention exceeding 10 years.​

Applications:

• Access Control: Ideal for secure entry systems in corporate, educational, and governmental facilities.

• Loyalty Programs: Used in retail environments to store customer loyalty points and information securely.​

• Identification: Suitable for ID cards requiring secure data storage, such as employee or student IDs.​

Security Features:

The Infineon SLE 5542 chip enhances security through its PSC mechanism. The PSC must be correctly presented to write data to the card, preventing unauthorized modifications. Additionally, the chip incorporates error detection codes to maintain data integrity during communication and storage.​

Technical Specifications:

• Communication Protocol: Synchronous, supporting T=0 protocol.​

• Operating Voltage: Typically operates at 5V.​

• Operating Temperature: Designed to function between -25°C and 70°C, suitable for various environments.​

Usage Guidelines:

To maintain optimal performance and longevity:​

• Handling: Avoid bending or exposing the card to extreme temperatures or moisture.​

• Cleaning: Use a soft, dry cloth to clean the card surface; avoid abrasive materials.​

• Storage: Store in a protective sleeve when not in use to prevent physical damage.​

By adhering to these guidelines, users can ensure the Infineon SLE Smartcard remains reliable throughout its lifespan.