The SLE5542 is a contact chip memory card with 256-byte EEPROM, designed for secure data storage and authentication. It is an upgraded version of the SLE4442, offering improved security features and reliability.
Key Technical Specifications:
- Memory: 256-byte EEPROM, organized into 256 × 8-bit.
- Security Features:
- Write protection: Irreversible byte-by-byte protection for the first 32 addresses.
- Programmable Security Code (PSC): Allows three attempts before locking the card.
- Communication Interface: Serial transmission protocol.
- Operating Voltage: 5V.
- Write Endurance: 100,000 cycles.
- Data Retention: Minimum 10 years.
- Applications: Used in access control, payment cards, ID cards, and transportation systems.