The X28HC256DMB-90 is a 256K CMOS EEPROM (Electrically Erasable Programmable Read-Only Memory) manufactured by Xicor (now Renesas). This memory device is commonly used for non-volatile storage of data and program code in embedded systems. Its in-system programmability and high endurance make it suitable for applications requiring frequent updates.

Applications

• Embedded systems
• Data logging
• Firmware storage
• Calibration data storage
• Industrial control systems

Features

• 256K (32K x 8) memory organization
• CMOS technology
• In-system programmability
• 100,000 erase/write cycles endurance
• Fast access time: 90ns
• 5V supply voltage

Benefits

• Non-volatile storage: Retains data even when power is removed.
• In-system programmability: Allows for easy updates without removing the device from the system.
• High endurance: Withstands a large number of erase/write cycles.
• Fast access time: Enables quick data retrieval.
• Reliable operation: Designed for stable and reliable performance in harsh environments.

The X28HC256DMB-90 EEPROM provides a reliable and flexible solution for non-volatile storage in a wide range of applications. Its in-system programmability and high endurance are particularly beneficial in systems requiring frequent updates or data logging. The device datasheet provides comprehensive information about programming procedures, timing characteristics, and electrical specifications.