The BR93L66FV-W is a 4K-bit (256 x 16 or 512 x 8) serial EEPROM (Electrically Erasable Programmable Read-Only Memory) from Rohm Semiconductor. This EEPROM is designed for low-voltage, low-power applications, offering reliable non-volatile storage. It's commonly used for storing configuration data, serial numbers, and other important system parameters in various electronic devices requiring a larger memory capacity than the BR93L46 series.

Applications

• Consumer electronics
• Industrial equipment
• Medical devices
• Automotive electronics
• Set-top boxes
• Security systems
• Data loggers

Features

• 4K-bit (256 x 16 or 512 x 8) memory organization: Offers flexible storage options.
• Serial interface: Uses a simple serial interface for easy communication with microcontrollers.
• Low voltage operation: Operates at low voltage for power-sensitive applications.
• Low power consumption: Minimizes energy usage.
• Write protect function: Prevents accidental data corruption.
• Wide operating temperature range: Suitable for various environments.

Benefits

• Reliable data storage: EEPROM technology ensures non-volatile storage of critical data.
• Simplified system design: Serial interface simplifies integration with microcontrollers.
• Extended battery life: Low voltage operation and low power consumption extend battery life in portable devices.
• Data protection: Write protect function prevents accidental overwriting of data.
• Versatile application: Wide operating temperature range allows for use in diverse environments.
• Larger memory capacity: Provides ample storage for more complex configuration data.

Additional Details

The BR93L66FV-W EEPROM uses a serial interface, such as SPI or Microwire, for communication with a microcontroller. The device operates over a specified voltage range, and its low power consumption makes it suitable for battery-powered devices. The write protect function can be enabled to prevent accidental overwriting of data. The EEPROM is available in a compact package, minimizing board space requirements. Detailed electrical characteristics, timing diagrams, and application guidelines can be found in the datasheet. Proper decoupling capacitors should be used to minimize noise and ensure reliable operation. The EEPROM is commonly used in applications where non-volatile storage of data is required, such as storing calibration parameters, device settings, and identification information and where 4K of memory is sufficient.