128kByte FRAM NVRAM Module Fujitsu MB85RC1MTPNF – RAK15005
Non-volatile FRAM memory module for WisBlock with 128 kByte storage and I2C interface. The RAK15005 is based on the Fujitsu MB85RC1MTPNF and is built for storing settings, counters, and logged data without the write-cycle limits of typical EEPROM or flash storage. Suited for data logging, configuration storage, and robust IoT devices.
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Product Description
Technical Details
The RAK15005 FRAM Module is a reliable, energy-efficient, and long-lasting non-volatile memory solution designed for WisBlock-based IoT systems. Built around the Fujitsu MB85RC1M storage chip, it offers 128 kByte capacity with exceptionally low power consumption and outstanding endurance for continuous operation.
Unlike EEPROM or Flash memory, FRAM enables virtually unlimited write and read cycles. The RAK15005 supports up to one trillion write cycles per byte and ensures data retention of up to 200 years at 35 °C, making it ideal for secure and consistent data storage even under heavy use.
It features a high-speed I²C interface (up to 1 MHz) for seamless integration. With a typical operating current of only 0.71 mA and a standby current of just 15 μA, the module is perfectly suited for battery-powered and energy-harvesting IoT solutions. The wide operating temperature range from -40 °C to +85 °C ensures dependable performance in harsh or variable conditions.
At just 10 × 10 mm, the RAK15005 fits easily into compact designs, providing a robust and scalable memory extension for WisBlock and custom IoT applications.
| Product | RAK15005 WisBlock 128kByte FRAM Module |
|---|---|
| Model | RAK15005 |
| Module type | WisBlock FRAM NVRAM memory module |
| Memory chip | Fujitsu MB85RC1MTPNF |
| Storage capacity | 128 kByte |
| Memory organization | 131072 words × 8 bits |
| Interface | I2C-compatible |
| I2C speed | Supports up to 3.4 MHz |
| Temperature range | -40 °C to +85 °C |
| Operating current | 0.71 mA typical at 3.4 MHz, 1.2 mA max. at 3.4 MHz |
| Standby current | 15 µA typical |
| Read/write endurance | 10,000,000,000,000 per byte |
| Data retention | 10 years at +85 °C, 95 years at +55 °C, over 200 years at +35 °C |
| Mounting | Sensor slot on a WisBlock Base board |
| Module size | 10 x 10 mm |
| Requirements | WisBlock Base and WisBlock Core required |
