The X28C256J is a 256K CMOS EEPROM (Electrically Erasable Programmable Read-Only Memory) manufactured by Xicor Inc. It is organized as 32K x 8 bits and features a fast access time, low power consumption, and high endurance. The device is designed for non-volatile data storage in a wide range of applications.

Applications:

• Non-Volatile Data Storage.
• Program Storage for Microcontrollers.
• Data Logging.
• Configuration Storage.
• Industrial Control Systems.

Features:

• 256K (32K x 8) Memory Organization.
• Fast Access Time (e.g., 150 ns).
• Low Power Consumption.
• High Endurance (e.g., 100,000 Erase/Write Cycles).
• Self-Timed Write Cycle.
• Data Polling for End-of-Write Detection.

Benefits:

• Provides reliable non-volatile data storage.
• Enables fast data retrieval for improved system performance.
• Reduces power consumption, suitable for battery-powered applications.
• Ensures data integrity over a long lifespan.
• Simplifies write operations with self-timed write cycle.
• Allows for efficient monitoring of write operations with data polling.

Technical Specifications:

• Memory Size: 256K (32K x 8)
• Access Time: 150 ns (typical)
• Supply Voltage: 5V ± 10%
• Operating Temperature: 0°C to +70°C
• Endurance: 100,000 Erase/Write Cycles
• Package: JEDEC DIP-28

The X28C256J EEPROM offers a reliable and efficient solution for non-volatile data storage. Its fast access time and low power consumption make it suitable for a wide range of applications. The high endurance ensures long-term data integrity, while the self-timed write cycle simplifies write operations. The device is commonly used in industrial control systems, data logging equipment, and embedded systems requiring non-volatile memory.