Microchip Technology Tariff Inquiry

AT28HC64B-90JC

AT28HC64B-90JC Description

The AT28HC64B-90JC 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 efficient data storage and retrieval capabilities. The AT28HC64B-90JC operates within a voltage range of 4.5V to 5.5V and has an access time of 90 nanoseconds, ensuring rapid data access. It supports a write cycle time of 10 milliseconds for both word and page operations, making it suitable for applications requiring frequent data updates.

The AT28HC64B-90JC is housed in a surface-mount package, specifically a 32-pin PLCC (Plastic Leaded Chip Carrier), and is available in a tube package format. It operates within a temperature range of 0°C to 70°C, making it suitable for a variety of industrial and commercial environments. The chip is classified under HTSUS code 8542.32.0051 and has a moisture sensitivity level (MSL) of 2, indicating a 1-year shelf life under controlled conditions.

AT28HC64B-90JC Features

• Memory Size and Organization: The AT28HC64B-90JC offers 64Kbit of EEPROM memory, organized as 8K x 8, providing a balance between storage capacity and data access efficiency.
• Parallel Interface: The parallel memory interface allows for fast data transfer rates, making it ideal for applications requiring high-speed data processing.
• Access Time: With an access time of 90 nanoseconds, the AT28HC64B-90JC ensures quick data retrieval, enhancing overall system performance.
• Write Cycle Time: The chip supports a write cycle time of 10 milliseconds for both word and page operations, facilitating efficient data updates.
• Operating Temperature: The operating temperature range of 0°C to 70°C makes the AT28HC64B-90JC suitable for a wide range of environmental conditions.
• Voltage Range: The supply voltage range of 4.5V to 5.5V provides flexibility in power supply design.
• Surface-Mount Packaging: The 32-pin PLCC surface-mount package is ideal for compact and high-density PCB designs.
• Moisture Sensitivity Level: An MSL of 2 ensures a 1-year shelf life under controlled conditions, reducing the risk of moisture-related damage.

AT28HC64B-90JC Applications

The AT28HC64B-90JC is well-suited for a variety of applications that require reliable and efficient data storage and retrieval. Some specific use cases include:

• Embedded Systems: Ideal for embedded systems where non-volatile memory is required for storing configuration data, firmware, or other critical information.
• Industrial Control: Suitable for industrial control applications where data integrity and quick access are crucial for system performance.
• Consumer Electronics: Can be used in consumer electronics for storing user settings, calibration data, or other non-volatile data.
• Telecommunications: Useful in telecommunications equipment for storing network configuration data, routing tables, or other critical information.
• Automotive Systems: Applicable in automotive systems for storing vehicle configuration data, diagnostic information, or other essential data.

Conclusion of AT28HC64B-90JC

The AT28HC64B-90JC is a versatile EEPROM memory IC chip that offers a balance of storage capacity, data access speed, and reliability. Its parallel memory interface and 90 nanosecond access time make it suitable for high-speed data processing applications. The chip's operating temperature range and surface-mount packaging further enhance its suitability for a wide range of industrial and commercial environments. Despite being marked as obsolete, the AT28HC64B-90JC remains a reliable choice for applications requiring non-volatile memory with efficient data storage and retrieval capabilities.