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AT28BV256-20PI

AT28BV256-20PI Description

The AT28BV256-20PI is a 256Kbit EEPROM memory IC designed for parallel interfacing applications. Manufactured by Microchip Technology, this through-hole mounted device features a 32K x 8 memory organization, offering robust storage capacity in a compact 28DIP package. The AT28BV256-20PI operates within a supply voltage range of 2.7V to 3.6V and is characterized by an access time of 200 ns and a write cycle time of 10ms for word and page operations. This EEPROM device is housed in a tube package, ensuring reliable handling and storage. Although the product is now obsolete, it remains a notable solution for legacy systems and specific applications requiring parallel memory interfacing.

AT28BV256-20PI Features

• Memory Organization: The AT28BV256-20PI features a 32K x 8 memory organization, providing a total of 256Kbit of non-volatile storage. This configuration is ideal for applications requiring moderate to large amounts of data storage.
• Parallel Interface: The device employs a parallel memory interface, enabling high-speed data transfer and efficient communication with microcontrollers and other system components.
• Fast Access Time: With an access time of 200 ns, the AT28BV256-20PI ensures rapid data retrieval, enhancing overall system performance.
• Write Cycle Time: The write cycle time of 10ms for word and page operations allows for efficient data writing, balancing speed and reliability.
• Supply Voltage Range: The AT28BV256-20PI operates within a supply voltage range of 2.7V to 3.6V, making it suitable for a variety of power supply configurations and ensuring compatibility with different system architectures.
• Through Hole Mounting: The through-hole mounting type ensures mechanical stability and ease of integration into printed circuit boards (PCBs), particularly in industrial and embedded systems.
• Moisture Sensitivity Level: With a moisture sensitivity level (MSL) of 1 (unlimited), the AT28BV256-20PI is suitable for storage and handling in various environmental conditions without the need for special precautions.

AT28BV256-20PI Applications

The AT28BV256-20PI is well-suited for a range of applications where reliable, non-volatile memory storage and fast data access are required. Key applications include:

• Embedded Systems: Ideal for storing firmware and configuration data in embedded systems, ensuring data integrity and quick access during system boot-up and operation.
• Industrial Automation: Used in industrial control systems to store calibration data, system parameters, and operational logs, contributing to the reliability and efficiency of automated processes.
• Telecommunications: Suitable for storing critical data in telecommunications equipment, such as network configuration settings and user data, ensuring seamless operation and quick recovery from power interruptions.
• Medical Devices: Provides reliable storage for medical device parameters and patient data, ensuring data integrity and accessibility in critical healthcare applications.
• Consumer Electronics: Used in consumer electronics for storing user preferences, device settings, and other non-volatile data, enhancing the user experience and system performance.

Conclusion of AT28BV256-20PI

The AT28BV256-20PI, despite being obsolete, remains a reliable and efficient EEPROM memory solution for parallel interfacing applications. Its 32K x 8 memory organization, fast access time, and moderate write cycle time make it suitable for a variety of applications requiring non-volatile data storage and quick data retrieval. The through-hole mounting and wide supply voltage range further enhance its versatility and compatibility with different system designs. While newer alternatives may offer advanced features, the AT28BV256-20PI continues to serve as a dependable option for legacy systems and specific use cases where its unique features and performance benefits are still highly valued.