The X28C256PI-20 is a 256K (32K x 8) EEPROM (Electrically Erasable Programmable Read-Only Memory) manufactured by Xicor, Inc. It's a non-volatile memory device that can be electrically erased and reprogrammed, offering flexibility and convenience for storing and updating data in various electronic systems. The '-20' indicates a speed grade of 200ns access time.

Applications

• Data Logging
• Configuration Storage
• Firmware Storage
• Programmable Logic Controllers (PLCs)
• Embedded Systems

Features

• 256K (32K x 8) Bit Organization: Provides ample storage capacity for various data types.
• Electrically Erasable and Programmable: Enables easy data updates without requiring physical removal.
• Non-Volatile Memory: Retains data even when power is removed.
• Fast Access Time (200ns): Allows for quick data retrieval.
• JEDEC Standard Pinout: Simplifies integration into existing systems.
• TTL Compatible: Interfaces easily with standard logic circuits.

Benefits

• Flexible Data Storage: Allows for easy updating and modification of stored data.
• Data Retention: Ensures data integrity even in the absence of power.
• Fast Operation: Enables quick access to stored data for real-time applications.
• Simplified Integration: JEDEC standard pinout and TTL compatibility simplify system design.
• Reliable Performance: Robust design ensures reliable data storage and retrieval.

The X28C256PI-20's ability to be electrically erased and programmed allows for in-system updates, eliminating the need for manual reprogramming. This is particularly useful in applications where the data needs to be updated frequently or remotely. The non-volatile nature of the memory ensures that the data is retained even when the power is turned off, making it suitable for storing critical information.

The fast access time of 200ns allows for quick data retrieval, which is essential in real-time applications. The JEDEC standard pinout simplifies integration into existing systems, reducing design time and cost. The TTL compatibility ensures that the memory can be easily interfaced with standard logic circuits. The X28C256PI-20 is commonly used in data logging applications, configuration storage, firmware storage, programmable logic controllers (PLCs), and embedded systems where reliable and flexible data storage is required. The device's endurance, referring to the number of write/erase cycles, is a crucial specification for ensuring long-term data integrity.