The BR24L64 is a 64Kbit (8192 x 8) serial EEPROM (Electrically Erasable Programmable Read-Only Memory) manufactured by Rohm Semiconductor. It's designed for storing small amounts of data that need to be retained even when power is removed. The device communicates via a simple 2-wire serial interface (I2C), making it easy to interface with microcontrollers and other digital devices.
Applications
- Consumer electronics: Storing user preferences, settings, and calibration data in devices like TVs, DVD players, and set-top boxes.
- Industrial equipment: Storing configuration parameters, calibration data, and historical data in industrial control systems, PLCs, and sensors.
- Automotive electronics: Storing vehicle configuration data, diagnostic information, and security codes in automotive ECUs (Electronic Control Units).
- Medical devices: Storing patient data, calibration information, and configuration settings in medical instruments and equipment.
- Security systems: Storing access codes, configuration settings, and event logs in security panels and access control systems.
Features
- 64Kbit (8192 x 8) memory capacity: Provides ample storage for small data sets.
- 2-wire serial interface (I2C): Simplifies communication with microcontrollers and other devices.
- Low voltage operation: Operates from a single 1.8V to 5.5V power supply.
- Low power consumption: Minimizes power consumption in battery-powered applications.
- Write protect feature: Prevents accidental data overwriting.
- Self-timed write cycle: Simplifies write operations.
- High reliability: Ensures data retention and endurance.
Benefits
- Non-volatile data storage: Retains data even when power is removed, ensuring data integrity.
- Easy integration: The I2C interface simplifies integration with microcontrollers and other digital systems.
- Low power operation: Suitable for battery-powered applications where power consumption is critical.
- Data protection: The write protect feature prevents accidental data corruption.
- Reliable performance: Provides reliable data storage and retrieval.
Additional Details
The BR24L64 supports standard and fast I2C bus speeds. It features a self-timed write cycle, which simplifies the writing process. The device is available in a variety of packages, including SOP (Small Outline Package) and TSSOP (Thin Shrink Small Outline Package). Key specifications include the operating voltage range, operating temperature range, write cycle time, and data retention period. Consult the datasheet for detailed electrical characteristics, timing diagrams, and application notes. The device is commonly used in applications where small amounts of non-volatile data storage are required, such as storing configuration parameters, user preferences, and calibration data.
