The BR93L56-W is a 2Kbit (256 x 8 or 128 x 16) Microwire EEPROM (Electrically Erasable Programmable Read-Only Memory) manufactured by Rohm Semiconductor. It is a serial EEPROM that uses the Microwire interface for communication, making it suitable for a variety of applications where non-volatile memory storage is required. This memory device is designed for low-voltage operation and is commonly used in applications requiring small amounts of data storage such as configuration settings and calibration data.

Applications

• Consumer Electronics: Commonly found in devices like remote controls, small appliances, and audio equipment to store user preferences and settings.
• Automotive Electronics: Used in various automotive modules for storing configuration data and calibration parameters.
• Industrial Control Systems: Employed in industrial control equipment for storing settings and parameters that need to be retained even when power is lost.
• Medical Devices: Integrated into medical devices to store calibration information and device settings.
• Security Systems: Used in security systems for storing access codes and configuration settings.

Features

• 2Kbit (256 x 8 or 128 x 16) Memory Capacity: Offers a flexible memory organization that can be configured as either 256 bytes or 128 words.
• Microwire Interface: Uses a simple three-wire Microwire serial interface for communication with microcontrollers.
• Low Voltage Operation: Operates at low voltages, typically between 1.8V and 5.5V, making it suitable for battery-powered devices.
• Write Protection: Includes a write protection feature to prevent accidental data corruption.
• Low Power Consumption: Designed for low power consumption to extend battery life in portable applications.

Benefits

• Non-Volatile Storage: Retains data even when power is removed, ensuring that critical information is preserved.
• Easy Integration: The simple Microwire interface makes it easy to integrate with microcontrollers.
• Versatile Application: Suitable for a wide range of applications requiring non-volatile data storage in low-power devices.
• Data Protection: Write protection feature prevents accidental data overwrites, improving data integrity.
• Low Power Operation: Helps to conserve power in battery-powered devices, leading to longer operational life.

Additional Details

The BR93L56-W supports a standard Microwire serial interface, which includes clock, data input, and data output lines. It is typically available in small outline packages such as SOIC. The -W suffix usually indicates the packaging type and specific temperature range. The device is designed to operate over a wide temperature range, making it suitable for use in harsh environments. The datasheet provides detailed information on the device's electrical characteristics, timing diagrams, and application notes for optimal performance.