Texas Instruments

BQ4015LYMA-70N

BQ4015LYMA-70N Description

The BQ4015LYMA-70N is a non-volatile static random access memory (NVSRAM) IC chip manufactured by Texas Instruments. This 4Mbit memory device is organized as 512K x 8 and is designed for applications requiring fast access times and reliable data retention. The BQ4015LYMA-70N features a parallel memory interface, providing high-speed data transfer capabilities. It operates within a supply voltage range of 3V to 3.6V and offers an access time of 70 nanoseconds, ensuring rapid data retrieval. The write cycle time for both word and page operations is also 70 nanoseconds, making it highly efficient for write-intensive applications.

The BQ4015LYMA-70N is housed in a through-hole package, specifically a 32-pin DIP module, which is suitable for applications where through-hole mounting is preferred. The device is packaged in a tube, facilitating easy handling and integration into various electronic systems. Despite its obsolete status, the BQ4015LYMA-70N remains a reliable choice for legacy systems and applications that require its specific memory format and performance characteristics.

BQ4015LYMA-70N Features

• Memory Organization: 512K x 8, providing a total memory size of 4Mbit.
• Access Time: 70 nanoseconds, ensuring rapid data retrieval.
• Write Cycle Time: 70 nanoseconds for both word and page operations, optimizing write performance.
• Supply Voltage: Operates within a range of 3V to 3.6V, making it suitable for low-power applications.
• Memory Interface: Parallel interface for high-speed data transfer.
• Package Type: Through-hole 32DIP module, ideal for applications requiring robust mechanical stability.
• Moisture Sensitivity Level: MSL 1 (Unlimited), indicating it is not sensitive to moisture, enhancing its reliability in various environments.
• Compliance: REACH Unaffected and ROHS3 Compliant, ensuring it meets environmental and safety standards.

BQ4015LYMA-70N Applications

The BQ4015LYMA-70N is particularly well-suited for applications that require fast, reliable, and non-volatile memory solutions. Its low access time and write cycle time make it ideal for real-time data logging, industrial control systems, and embedded systems where quick data retrieval and storage are critical. The parallel memory interface allows for efficient integration with microcontrollers and other processing units, enabling seamless data transfer.

Specific use cases include:

• Real-Time Data Logging: For applications such as environmental monitoring, where data needs to be quickly captured and stored.
• Industrial Control Systems: For storing critical parameters and settings that need to be retained even in the event of power loss.
• Embedded Systems: For applications requiring fast access to stored data, such as firmware storage and configuration data.

Conclusion of BQ4015LYMA-70N

The BQ4015LYMA-70N, despite being obsolete, remains a valuable component for specific applications due to its unique combination of fast access times, reliable non-volatile storage, and compatibility with through-hole mounting. Its low supply voltage range and compliance with environmental standards make it a suitable choice for modernizing legacy systems while maintaining performance and reliability. For applications requiring high-speed data access and non-volatile memory, the BQ4015LYMA-70N continues to be a reliable and efficient solution.