The 7Semi 64Kbit I2C FRAM Breakout Board is a compact, high-endurance non-volatile memory module built around the MB85RC64TA Ferroelectric Random Access Memory (FRAM) IC. It provides 64Kbit (8KB) of memory with high-speed I2C communication up to 3.4MHz, making it suitable for frequent data logging, configuration storage, and industrial embedded applications.
Unlike conventional EEPROM and Flash memory, FRAM enables fast read and write operations without requiring an erase cycle or write-completion delay. With a read/write endurance of up to 10 trillion cycles per byte and data retention rated for 70.4 years at 85°C, the module is designed for applications requiring frequent memory updates and reliable non-volatile storage.
The breakout board features VIN, GND, SCL, and SDA pins for power supply and I2C communication, three address-select pins (A0, A1, and A2) for configuring multiple I2C addresses, and a dedicated Write Protect (WP) pin to prevent unintended modification of stored data. These connections enable straightforward integration with microcontrollers and allow up to eight compatible FRAM devices to share the same I2C bus.
Its compact design, two mounting holes and I2C communication make it suitable for Arduino, ESP32, STM32, Raspberry Pi, industrial controllers, and other embedded platforms operating at compatible I2C voltage levels.
Key Features
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64Kbit Non-Volatile FRAM Memory: Provides 8KB (8,192 × 8 bits) of persistent storage without requiring a backup battery.
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High-Speed I2C Communication: Supports up to 3.4MHz in High-Speed mode and 1MHz in Fast-mode Plus with compatible controllers.
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Exceptional Read/Write Endurance: Rated for up to 10 trillion (10¹³) read/write cycles per byte, making it suitable for frequent data updates.
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Instant Memory Writes: Eliminates EEPROM-style erase cycles and write-completion delays for efficient non-volatile data storage.
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Configurable I2C Address: Three address-select pins (A0, A1, A2) allow up to eight compatible devices on the same I2C bus.
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Hardware Write Protection: Dedicated WP pin provides hardware control over memory write operations.
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Long-Term Data Retention: Provides a minimum data retention of 70.4 years at 85°C
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Low-Power Operation: Designed for energy-efficient embedded systems, with low operating and standby current consumption.
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Accessible 8-Pin Interface: Clearly labeled VIN, GND, SCL, SDA, WP, A0, A1, and A2 connections simplify wiring and integration.
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Compact Breakout Design: Small PCB footprint with two mounting holes for convenient installation in embedded and industrial systems.
Includes
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1 × 7Semi I2C FRAM Breakout Board
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1 × 2.54mm Pitch Pin Header Strip
- Category of product:
- FRAM Breakout board
- Memory Type:
- Ferroelectric RAM (FRAM)
- Memory Capacity:
- 64 Kbit (8 KB)
- Memory Organization:
- 8,192 × 8 bits
- Communication Interface:
- I2C
- I2C Address:
- Default 0x50, 0x50–0x57
- Read/Write Endurance:
- 10¹³ Cycles per Byte
- _resources_dxf_file:
- https://7semi.com/content/3d-files/dfx_step/10568.dxf
- _resources_step_file:
- https://7semi.com/content/3d-files/dfx_step/10568.STEP
- _resources_datasheet:
- https://7semi.com/content/datasheets/MB85RC64TA.pdf
- _summary:
- The 7Semi MB85RC64TA I2C FRAM Breakout provides 8KB of non-volatile memory with high read/write endurance, no write delay, and interface speeds up to 3.4MHz for frequent data storage.
- Data Retention:
- 70 Years at +85°C
- Write Protection:
- WP Pin (Active HIGH)
- Operating Temperature:
- −40°C to +85°C
- Board Dimensions (L × W × H):
- 21 x 14 x 3.21 mm
