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AT28HC256-12SI

AT28HC256-12SI Description

The AT28HC256-12SI is a 256Kbit EEPROM memory IC chip manufactured by Microchip Technology. This chip is designed for parallel memory interfacing and offers robust performance with a memory organization of 32K x 8. The AT28HC256-12SI is housed in a surface-mount 28SOIC package, making it suitable for compact and space-efficient designs. Despite its obsolescence, it remains a reliable choice for applications requiring non-volatile memory storage.

AT28HC256-12SI Features

• Memory Size and Organization: The AT28HC256-12SI provides 256Kbit of EEPROM memory, organized into 32K x 8 bits, offering ample storage for various applications.
• Access Time: With an access time of 120 nanoseconds, this chip ensures fast data retrieval, making it suitable for time-sensitive operations.
• Write Cycle Time: The write cycle time for a word or page is 10 milliseconds, balancing speed and reliability for data storage.
• Voltage Range: The chip operates within a supply voltage range of 4.5V to 5.5V, ensuring compatibility with a variety of power supply configurations.
• Mounting Type: The surface-mount technology (SMT) design allows for easy integration into modern printed circuit boards (PCBs).
• Moisture Sensitivity Level (MSL): Rated at MSL 2 (1 Year), the AT28HC256-12SI is suitable for environments with moderate humidity levels.
• Compliance: The chip is REACH unaffected and classified under ECCN EAR99, ensuring compliance with international regulations.

AT28HC256-12SI Applications

The AT28HC256-12SI is ideal for applications requiring non-volatile memory storage, particularly where data integrity and reliability are paramount. Its parallel memory interface and EEPROM technology make it suitable for:

• Embedded Systems: Storing configuration data and firmware in embedded devices.
• Industrial Control Systems: Providing reliable storage for critical system parameters and operational data.
• Telecommunications: Storing network configuration and operational data in communication equipment.
• Consumer Electronics: Managing user settings and preferences in devices such as routers, modems, and smart home controllers.

Conclusion of AT28HC256-12SI

The AT28HC256-12SI, manufactured by Microchip Technology, is a robust EEPROM memory IC chip offering 256Kbit of storage in a compact 28SOIC package. Despite being obsolete, its fast access time, reliable write cycle, and compatibility with a wide voltage range make it a dependable choice for various applications. Its surface-mount design and moderate moisture sensitivity level ensure ease of integration and durability. While newer alternatives may exist, the AT28HC256-12SI remains a viable option for projects requiring proven, non-volatile memory solutions.