The RAK15003 WisBlock FRAM NVRAM Module adds non-volatile memory to WisBlock systems using the Fujitsu MB85RC256VPNF FRAM chip.
With 32kB capacity, 10-year data retention, and 10-trillion write cycles, it outperforms EEPROM and Flash solutions for reliability and endurance. This makes it ideal for secure data logging, calibration storage, or maintaining configuration settings across power cycles.
Its low-power operation and I²C-compatible interface integrate seamlessly with WisBlock Base Boards and WisBlock Core modules, providing flexible and robust memory expansion for IoT designs.
Key Features
Protects critical data during power interruptions
Maintains stored information for up to 10 years
Supports over 10 trillion write cycles for extreme reliability
Instant read/write access with no erase delay
Low power consumption ideal for battery or solar-powered nodes
Compact, durable module designed for industrial environments
Ideal For
Data logging and event recording in IoT devices
Calibration and configuration storage
Sensor networks requiring non-volatile backup
Industrial and environmental monitoring systems
Secure embedded systems and edge computing nodes
WisBlock FRAM NVRAM Module – RAK15003 32kByte Fujitsu MB85RC256VPNF
The RAK15003 WisBlock FRAM NVRAM Module provides high-reliability data storage using Fujitsu MB85RC256VPNF, combining low power use, extreme endurance, and long-term data retention.

















