Microchip Technology Tariff Inquiry

28C64A-25B/UC

28C64A-25B/UC Description

The 28C64A-25B/UC is an EEPROM (Electrically Erasable Programmable Read-Only Memory) IC chip designed by Microchip Technology. This memory IC chip features a parallel memory interface and a memory organization of 8K x 8, providing a total memory size of 64Kbit. The chip operates within a supply voltage range of 4.5V to 5.5V and has an access time of 250 ns, ensuring fast data retrieval. The write cycle time for a word or page is 1ms, making it suitable for applications requiring reliable and efficient data storage and retrieval.

The 28C64A-25B/UC is housed in a bulk package, which is ideal for industrial and commercial applications where bulk packaging is preferred. The memory format is EEPROM, which allows for non-volatile data storage, meaning data is retained even when power is removed. This chip is classified under the HTSUS code 8542.32.0051 and has a moisture sensitivity level (MSL) of 3, indicating it can be exposed to moisture for up to 168 hours without degradation.

28C64A-25B/UC Features

• Memory Interface: Parallel, enabling high-speed data transfer and efficient communication with other system components.
• Memory Organization: 8K x 8, providing a total of 64Kbit of storage, which is ideal for applications requiring moderate data storage capacity.
• Access Time: 250 ns, ensuring rapid data access and retrieval, crucial for time-sensitive operations.
• Write Cycle Time: 1ms for word or page writes, balancing speed and reliability for non-volatile memory operations.
• Voltage Range: 4.5V to 5.5V, offering flexibility in power supply requirements and compatibility with various systems.
• Bulk Packaging: Suitable for industrial and commercial applications, facilitating easy handling and integration.
• Non-Volatile Storage: EEPROM technology ensures data retention even when power is removed, providing robust data integrity.
• Moisture Sensitivity Level: MSL 3 (168 hours), ensuring the chip can withstand typical environmental conditions without degradation.

28C64A-25B/UC Applications

The 28C64A-25B/UC is well-suited for a variety of applications where reliable, non-volatile memory storage is required. Some specific use cases include:

• Embedded Systems: Ideal for embedded systems where data integrity and quick access are crucial, such as in automotive control units, industrial automation, and medical devices.
• Data Logging: Suitable for applications requiring data logging, such as environmental monitoring systems, where data must be stored reliably and retrieved quickly.
• Firmware Storage: Can be used to store firmware in devices where frequent updates are not required, ensuring the device's operational parameters are retained even during power loss.
• Consumer Electronics: Applicable in consumer electronics for storing configuration settings and user data, such as in digital cameras, smart meters, and home automation systems.

Conclusion of 28C64A-25B/UC

The 28C64A-25B/UC from Microchip Technology is a reliable and efficient EEPROM IC chip designed for applications requiring moderate data storage and fast data access. Its parallel memory interface, combined with a 250 ns access time and 1ms write cycle time, ensures high performance and reliability. The chip's non-volatile EEPROM technology and bulk packaging make it suitable for a wide range of industrial and commercial applications. Despite its obsolete status, the 28C64A-25B/UC remains a viable option for systems where its specific features and performance benefits are required.