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AT28HC256E-90TU

AT28HC256E-90TU Description

The AT28HC256E-90TU is a 256Kbit EEPROM memory IC chip manufactured by Microchip Technology. This device is organized as 32K x 8, offering parallel memory interface for efficient data handling. It features a 90 ns access time and a write cycle time of 10ms for word and page operations. The AT28HC256E-90TU operates within a supply voltage range of 4.5V to 5.5V, making it suitable for various electronic systems requiring reliable non-volatile memory solutions. The chip is available in a 28TSOP package and is designed for surface mount applications. Although it is now considered obsolete, its robust performance and compatibility make it a valuable component for legacy systems and specific applications.

AT28HC256E-90TU Features

• Memory Organization: 32K x 8, providing a total of 256Kbit of non-volatile storage.
• Access Time: 90 ns, ensuring rapid data retrieval and efficient system performance.
• Write Cycle Time: 10ms for word and page operations, balancing speed with reliability.
• Voltage Range: 4.5V to 5.5V, offering flexibility in power supply requirements.
• Memory Interface: Parallel, facilitating straightforward integration with a variety of systems.
• Package Type: 28TSOP, suitable for surface mount technology (SMT) and compact designs.
• Compliance: ROHS3 compliant and REACH unaffected, ensuring environmental and regulatory standards are met.
• Moisture Sensitivity Level (MSL): Level 3 (168 Hours), suitable for standard manufacturing processes.

AT28HC256E-90TU Applications

The AT28HC256E-90TU is ideal for applications requiring reliable, non-volatile memory with a parallel interface. Its 90 ns access time and 10ms write cycle time make it suitable for systems where quick data access and moderate write speeds are necessary. Specific use cases include:

• Embedded Systems: Providing non-volatile storage for firmware and configuration data.
• Industrial Control: Storing critical parameters and settings in harsh environments.
• Telecommunications: Maintaining configuration and operational data in communication equipment.
• Consumer Electronics: Storing user settings and calibration data in devices like printers and scanners.

Conclusion of AT28HC256E-90TU

The AT28HC256E-90TU is a robust EEPROM memory IC chip that offers a balance of speed, reliability, and compatibility. Its 90 ns access time and 10ms write cycle time make it suitable for a variety of applications, particularly those requiring quick data retrieval and moderate write speeds. Despite being obsolete, its performance and features continue to make it a valuable component for legacy systems and specific applications. With its ROHS3 compliance and REACH unaffected status, it also meets important environmental and regulatory standards. For systems needing a reliable, non-volatile memory solution with a parallel interface, the AT28HC256E-90TU remains a viable option.