The X2864AD25 is a 64K (8K x 8) EEPROM (Electrically Erasable Programmable Read-Only Memory) manufactured by Xicor Inc. It is designed for applications requiring non-volatile memory storage with in-system programmability. This EEPROM offers features such as high endurance, low power consumption, and fast access times, making it suitable for a wide range of embedded systems.

Applications:

• Data logging systems
• Industrial control equipment
• Embedded systems requiring non-volatile memory
• Programmable logic controllers (PLCs)
• Automotive electronics

Features:

• 64K (8K x 8) memory organization
• Fast access time (250ns)
• Low power CMOS technology
• In-system programmability
• Automatic page write operation
• Data protection features (e.g., write protection)
• High endurance (100,000 write cycles per byte)
• TTL compatible inputs and outputs
• Single 5V power supply

Benefits:

• Non-Volatile Storage: Retains data even when power is removed, ensuring reliable data storage.
• In-System Programmability: Allows for easy updates and modifications without removing the device from the system.
• High Endurance: Withstands a large number of write cycles, making it suitable for applications requiring frequent data updates.
• Fast Access Time: Provides quick data retrieval, improving system performance.
• Low Power Consumption: Reduces energy consumption, making it suitable for battery-powered devices.

Additional Details:

The X2864AD25 typically operates with a single 5V power supply. It features automatic page write operation, which simplifies the programming process and reduces programming time. The device also includes data protection features to prevent accidental data corruption. It's commonly used in applications where firmware updates are necessary, or configuration data needs to be stored persistently. The device is available in a DIP package, facilitating easy integration into existing systems.

Xicor was acquired by Intersil, so this component may now be found under the Intersil name as well. Check datasheets for compatibility and specifications before using as a replacement.