The FM25640-S is a 64-Kb serial F-RAM (Ferroelectric Random Access Memory) device from Ramtron. This memory is designed for applications requiring frequent and rapid writing, offering a combination of high endurance, fast write speeds, and low power consumption. The device interfaces via SPI, making it easy to integrate into various embedded systems.

Applications

• Industrial Control Systems: Used for storing configuration data and logging system events.
• Smart Meters: Suitable for storing energy consumption data securely and reliably.
• Medical Devices: Employed in portable medical equipment for storing patient data.
• Automotive Electronics: Applied in car black boxes for recording vehicle data.
• Data Logging: Used in environmental monitoring devices for long-term data storage.

Features

• 64-Kb Nonvolatile F-RAM: Provides high-speed read and write operations.
• Serial Peripheral Interface (SPI): Enables simple communication with microcontrollers.
• High Endurance: Supports up to 10<sup>14 read/write cycles.
• Low Power Consumption: Minimizes energy usage in battery-powered applications.
• Fast Write Time: Allows for real-time data logging without delays.

Benefits

• Enhanced System Reliability: F-RAM technology ensures data retention even in the event of a power loss.
• Improved Performance: Fast write speeds enhance system responsiveness and efficiency.
• Extended Battery Life: Low power consumption extends the operational life of portable devices.
• Simplified Integration: SPI interface facilitates easy integration into existing systems.
• Long-Term Data Retention: Ensures data integrity over extended periods of time.

Additional Details

The FM25640-S operates within a wide voltage range, making it versatile for different power supply configurations. The device is available in surface-mount packages, and it is designed to withstand a wide range of operating temperatures, typically from -40°C to +85°C. This F-RAM memory solution offers a reliable and efficient storage option for diverse applications.