The X28C256J15 is a 256K CMOS EEPROM (Electrically Erasable Programmable Read-Only Memory) manufactured by Xicor Inc. It is designed for non-volatile storage applications requiring in-system programmability and low power consumption. This EEPROM offers a cost-effective solution for storing firmware, configuration data, and other critical information that needs to be retained even when power is removed.

Applications

• Data Logging: Used in applications requiring the storage of sensor data over time, such as environmental monitoring or industrial process control.
• Firmware Storage: Stores the operational code for embedded systems, allowing for easy updates and modifications.
• Configuration Storage: Retains system settings and parameters in devices like network equipment, industrial controllers, and consumer electronics.
• Programmable Logic Controllers (PLCs): Stores control programs and system configurations.
• Automotive Electronics: Used in engine control units (ECUs) and other automotive systems for storing calibration data and software.

Features

• 256Kbit (32K x 8) Organization: Provides ample storage capacity for various applications.
• Fast Access Time: Offers a read access time of 150ns, enabling quick data retrieval.
• Low Power Consumption: Operates with a low standby current, making it suitable for battery-powered devices.
• Page Mode Write: Supports page mode writing, allowing for faster write operations.
• Automatic Page Write Operation: Simplifies the write process and reduces programming complexity.
• Data Protection: Features built-in data protection mechanisms to prevent accidental data corruption.
• JEDEC Standard Pinout: Facilitates easy integration into existing systems.

Benefits

• In-System Programmability: Allows for easy updates and modifications without removing the device from the system.
• Non-Volatile Storage: Retains data even when power is removed, ensuring data integrity.
• Low Power Operation: Extends battery life in portable applications.
• Fast Read Access: Enables quick data retrieval, improving system performance.
• Simplified Write Operations: Reduces programming complexity and speeds up write cycles.
• Increased Reliability: Offers robust data protection features, ensuring data integrity in harsh environments.

Additional Details

The X28C256J15 operates on a single 5V power supply. It is available in various packages, including DIP and SOIC. The device supports a typical endurance of 10,000 write cycles per byte. It is designed for use in industrial temperature ranges. This EEPROM is suitable for applications where non-volatile memory and in-system programmability are essential.