Adafruit I2C Non-Volatile FRAM Breakout - 256Kbit / 32KByte

The Adafruit I2C FRAM Breakout adds 256Kbit (32KB) of non-volatile FRAM memory to microcontroller projects. FRAM retains stored data when power is removed and provides fast write cycles without the page and write delays associated with Flash and EEPROM. This makes the memory useful for applications including data logging and data buffering.

The MB85RC256V FRAM chip communicates over I2C at clock rates up to 1MHz and works with both 3V and 5V power and logic. Each byte supports a very high number of read and write cycles while retaining stored data for extended periods. The compact breakout is breadboard-friendly and includes a loose 0.1" male header for soldering.

Highlighted features

• 32KB of non-volatile FRAM memory
• I2C interface with clock rates up to 1MHz
• Fast writes without a write delay after each byte
• Supports 3V and 5V power and logic
• High write endurance for applications with frequent memory updates
• Suitable for data logging and data buffering

Technical specifications

• Memory capacity: 256Kbit / 32KB
• Memory configuration: 32,768 x 8-bit
• Interface: I2C
• Maximum I2C clock frequency: 1MHz
• FRAM chip supply voltage: 2.7V to 5.5V
• Write endurance: minimum 10^12 cycles per byte
• FRAM chip operating temperature: -40°C to +85°C
• Dimensions: 15.5mm x 20mm x 2mm
• Weight: 1.2g