The X28HC64DMB-12 is a 64K CMOS EEPROM manufactured by Xicor Inc. (later acquired by Intersil, then Renesas). It provides non-volatile data storage, retaining data even when power is removed, and is suitable for a variety of applications where persistent memory is required.

Applications

• Data Logging
• Program Storage for Embedded Systems
• Configuration Data Storage
• Industrial Control Equipment
• Robotics

Features

• 64K (8K x 8) Memory Organization
• Fast Access Time (120ns)
• CMOS Technology for Low Power Consumption
• Automatic Page Write Operation
• Data Polling for End-of-Write Detection
• Write Protection Features

Benefits

• Reliable Non-Volatile Data Storage: Ensures data retention even during power loss, providing a robust solution for critical data.
• Fast Access Time: Enables quick data access and retrieval, improving system performance.
• Low Power Consumption: Reduces energy usage in battery-powered devices and energy-sensitive applications.
• Simplified Writing Operations: Automates the page writing process, streamlining data storage and reducing programming complexity.
• Data Protection: Prevents accidental data modification with built-in write protection mechanisms, ensuring data integrity.

Additional Details

The X28HC64DMB-12 operates on a single 5V power supply. The device incorporates a page write mode for efficient multi-byte writes and includes data polling and toggle bit features to indicate the completion of write cycles. Common package types include DIP and SOIC. The memory can be read and written byte-by-byte, with write operations typically taking a few milliseconds per byte or page. It is suitable for applications needing moderate density, non-volatile storage with reasonably fast access times.