STMicroelectronics

M48Z512AY-70PM1

M48Z512AY-70PM1 Description

The M48Z512AY-70PM1 from STMicroelectronics is a 4Mbit Non-Volatile Static RAM (NVSRAM) with a parallel memory interface, organized as 512K x 8. Designed for applications requiring persistent data storage with SRAM-like performance, this device integrates battery-backed SRAM with non-volatile storage, ensuring data retention during power loss. Operating within a 4.5V to 5.5V supply range, it features a 70ns access time and 70ns write cycle time, making it suitable for high-speed applications. The device is housed in a 32-pin PMDIP package and is RoHS3 compliant, adhering to environmental standards.

M48Z512AY-70PM1 Features

• Memory Organization: 512K x 8 configuration, offering flexible data storage.
• High-Speed Performance: 70ns access and write cycle times for efficient data handling.
• Non-Volatile Storage: Combines SRAM speed with EEPROM-like data retention, eliminating the need for external backup batteries.
• Wide Operating Voltage: Supports 4.5V to 5.5V, ensuring compatibility with standard logic levels.
• Robust Packaging: Through-hole 32-pin PMDIP for reliable mounting in industrial environments.
• Compliance: Meets ROHS3 and REACH standards, with an ECCN 3A991B2A classification.

M48Z512AY-70PM1 Applications

• Industrial Control Systems: Ideal for critical data logging and real-time processing where power interruptions are a concern.
• Medical Equipment: Ensures data integrity in diagnostic and monitoring devices.
• Telecommunications: Used in network infrastructure for buffering and temporary storage.
• Automotive Electronics: Suitable for black-box data recording and event logging.
• Legacy Systems: Provides a drop-in replacement for obsolete SRAMs with added non-volatile benefits.

Conclusion of M48Z512AY-70PM1

The M48Z512AY-70PM1 stands out as a reliable NVSRAM solution, blending high-speed SRAM performance with non-volatile data retention. Its 70ns access time, wide voltage range, and industrial-grade packaging make it a versatile choice for applications demanding both speed and data persistence. While marked as obsolete, it remains a viable option for legacy systems or designs requiring proven technology. For engineers seeking a balance between performance and reliability, this device offers a compelling solution.