The X28HC256DI-90 is a 256 Kbit (32K x 8) High-Performance CMOS EEPROM (Electrically Erasable Programmable Read-Only Memory) manufactured by Xicor Inc. This EEPROM offers in-system programmability and non-volatile data storage, making it ideal for applications where firmware or configuration data needs to be updated easily and retained even when power is removed.

Applications:

• Embedded systems
• Industrial control equipment
• Instrumentation
• Data logging
• Configuration storage for programmable devices

Features:

• 256 Kbit (32K x 8) memory organization
• High-performance CMOS technology
• Fast access time (90ns)
• In-system programmability
• Low power consumption
• Automatic page write mode

Benefits:

• Non-volatile data storage eliminates the need for battery backup
• In-system programmability allows for easy firmware updates and configuration changes
• Fast access time enables quick data retrieval
• Low power consumption extends battery life in portable applications
• Automatic page write mode simplifies the write process and improves efficiency

Additional Details:

The X28HC256DI-90 operates on a single 5V power supply. It has a fast access time of 90ns. The device features an automatic page write mode, which allows for efficient writing of multiple bytes of data in a single operation. This EEPROM is available in a DIP (Dual In-line Package). The datasheet details timing parameters, power consumption characteristics, and operating conditions. Proper decoupling is crucial for reliable operation. Write protection mechanisms may be available to prevent accidental data corruption. Device has a specific endurance, or number of write cycles, over its lifespan.