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AT28HC64B-70SI

AT28HC64B-70SI Description

The AT28HC64B-70SI is a 64Kbit EEPROM memory IC chip designed by Microchip Technology. This chip features a parallel memory interface and is organized as 8K x 8, providing a total memory size of 64Kbit. It is designed for surface mount applications and comes in a 28SOIC package, which is housed in a tube. The AT28HC64B-70SI operates within a supply voltage range of 4.5V to 5.5V and has an access time of 70 nanoseconds. The write cycle time for a word or page is 10 milliseconds, ensuring reliable data storage and retrieval. This EEPROM chip is classified under HTSUS code 8542.32.0051 and has a moisture sensitivity level (MSL) of 2, indicating it is suitable for environments with a 1-year shelf life under controlled conditions. The product is categorized as obsolete, which means it is no longer in active production but may still be available in existing stock.

AT28HC64B-70SI Features

The AT28HC64B-70SI offers several key features that make it a robust choice for various applications:

• Parallel Memory Interface: This feature allows for high-speed data transfer, making it suitable for systems requiring rapid read/write operations.
• 8K x 8 Memory Organization: The memory is organized into 8K blocks of 8-bit data, providing a balanced approach to memory management and data access.
• Fast Access Time: With an access time of 70 nanoseconds, the AT28HC64B-70SI ensures quick data retrieval, enhancing overall system performance.
• Reliable Write Cycle Time: The 10ms write cycle time ensures that data is written reliably and efficiently, minimizing the risk of data corruption.
• Wide Supply Voltage Range: Operating within a 4.5V to 5.5V range, the chip is versatile and can be used in various power supply configurations.
• Surface Mount Technology: The surface mount design allows for compact and efficient PCB layouts, ideal for modern electronics.
• Moisture Sensitivity Level 2: This rating ensures the chip can be stored and used in environments with a 1-year shelf life, providing flexibility in manufacturing schedules.

AT28HC64B-70SI Applications

The AT28HC64B-70SI is ideal for a variety of applications where reliable and efficient data storage is required:

• Embedded Systems: The chip’s fast access time and reliable write cycle make it suitable for embedded systems that require quick data retrieval and storage.
• Industrial Control Systems: The robustness and reliability of the AT28HC64B-70SI make it a good fit for industrial control systems where data integrity is crucial.
• Consumer Electronics: In consumer electronics, the chip can be used for storing configuration data, firmware, and other critical information.
• Telecommunications: The AT28HC64B-70SI can be employed in telecommunication equipment for storing network settings and other operational data.
• Automotive Systems: The chip’s ability to operate within a wide voltage range and its surface mount design make it suitable for automotive applications where space and reliability are key considerations.

Conclusion of AT28HC64B-70SI

The AT28HC64B-70SI, despite being classified as obsolete, remains a reliable and efficient EEPROM memory IC chip. Its fast access time, reliable write cycle, and parallel memory interface make it a valuable component for applications requiring high-speed data transfer and storage. The chip’s wide supply voltage range and surface mount design further enhance its versatility and ease of integration into various electronic systems. While no longer in active production, the AT28HC64B-70SI continues to offer a robust solution for memory storage needs in a range of industries.