Infineon Technologies AG Application Specific Microcontrollers SLE 4442 C

The SLE 4442 C is an intelligent 256-byte EEPROM microcontroller designed for applications requiring secure data storage. It features a byte-wise addressing scheme and includes an irreversible write protection function for the lowest 32 addresses, enhancing data integrity. The device supports a two-wire link protocol and complies with ISO standard 7816-3 for synchronous transmission, making it suitable for chip card applications. A notable characteristic of the SLE 4442 C is its programmable security code (PSC), which restricts data modification until the correct code is entered, providing an additional layer of security. The programming time for writing and erasing data is 2.5 ms per byte, with a minimum endurance of 10,000 write/erase cycles and a data retention period of at least ten years. This microcontroller is available in a chip form factor, making it versatile for various embedded applications.