The WisBlock FRAM Memory Module – RAK15004 features the Fujitsu MB85RC512T chip, offering reliable, low-power non-volatile RAM (FRAM) storage for your WisBlock solution.
With a data retention of up to 10 years and an industry-leading 10 trillion write cycles, this module eliminates the limitations of EEPROM and Flash storage technologies, making it ideal for applications that require frequent data logging or configuration writes.
Key Features & Benefits:
High-Endurance Storage: 10 trillion write cycles – far beyond EEPROM/Flash
Non-Volatile Memory: Retains data for up to 10 years without power
64 kB Capacity: Sufficient for most IoT configuration and logging use cases
Low Power Operation: Ideal for battery-powered and energy-harvesting projects
WisBlock Compatible: Plug-and-play integration with WisBlock Base Boards
Perfect for data logging, sensor calibration storage, critical configuration parameters, and IoT systems that require reliable non-volatile memory.
WisBlock FRAM Memory Module – RAK15004 (Fujitsu MB85RC512T)
The WisBlock FRAM Memory Module – RAK15004 provides 64 kB of non-volatile memory with virtually unlimited write endurance, ensuring secure data retention for WisBlock IoT projects.


















