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AT28HC256-70SI

AT28HC256-70SI Description

The AT28HC256-70SI is a 256Kbit EEPROM memory IC designed for high-performance applications requiring reliable non-volatile storage. Manufactured by Microchip Technology, this device features a parallel memory interface and is organized as 32K x 8, providing a total memory size of 256Kbit. The AT28HC256-70SI operates within a supply voltage range of 4.5V to 5.5V and offers an access time of 70 nanoseconds, ensuring fast data retrieval. The write cycle time for word and page operations is 10 milliseconds, making it suitable for applications where data integrity and quick write operations are crucial.

This EEPROM IC is housed in a surface-mount 28SOIC package, which is ideal for compact and space-constrained designs. The device is available in a tube package format, facilitating easy handling and integration into various electronic systems. The AT28HC256-70SI has a moisture sensitivity level (MSL) of 2, indicating it can be stored for up to one year before assembly without additional moisture protection.

AT28HC256-70SI Features

• Memory Organization: 32K x 8, providing a total of 256Kbit of non-volatile storage.
• Access Time: 70 nanoseconds, ensuring rapid data retrieval.
• Write Cycle Time: 10 milliseconds for word and page operations, ensuring efficient data writing.
• Voltage Range: Operates within 4.5V to 5.5V, offering flexibility in power supply requirements.
• Package Type: Surface-mount 28SOIC, suitable for compact designs.
• Moisture Sensitivity Level: MSL 2 (1 Year), ensuring reliability in storage and handling.
• Technology: EEPROM, providing non-volatile storage that retains data even without power.
• Mounting Type: Surface Mount, ideal for modern PCB designs.
• Product Status: Obsolete, but still available for legacy systems and specific applications.

AT28HC256-70SI Applications

The AT28HC256-70SI is well-suited for a variety of applications that require reliable and efficient non-volatile memory solutions. Some specific use cases include:

• Embedded Systems: Ideal for storing firmware and configuration data in embedded devices.
• Industrial Control: Provides robust storage for critical parameters in industrial automation and control systems.
• Telecommunications: Used in communication equipment for storing network configurations and operational data.
• Consumer Electronics: Suitable for devices that require non-volatile storage for user settings and preferences.
• Automotive Electronics: Reliable storage for vehicle control units and infotainment systems.

Conclusion of AT28HC256-70SI

The AT28HC256-70SI is a versatile EEPROM memory IC that offers a balance of performance and reliability. Its fast access time and efficient write cycle time make it suitable for applications where quick data retrieval and integrity are essential. The surface-mount 28SOIC package and moisture sensitivity level of 2 ensure it can be easily integrated into modern electronic designs while maintaining reliability during storage and handling.

Despite being marked as obsolete, the AT28HC256-70SI remains a valuable component for legacy systems and specific applications where its unique features and performance benefits are required. For designers looking for a reliable and efficient EEPROM solution, the AT28HC256-70SI is a proven choice.