Maxim Integrated DS1225Y-120 Nonvolatile SRAM

The Maxim Integrated DS1225Y-120 is a 64k Nonvolatile SRAM designed to provide a reliable, yet easy-to-use memory solution for applications requiring data preservation upon power loss. This high-performance, 128k-bit static RAM features a self-contained lithium energy source and control circuitry which monitors the VCC input for an out-of-tolerance condition. When such a condition is detected, the lithium energy source is automatically switched on and write protection is unconditionally enabled to prevent data corruption during the power transition.

Key Features:

• Capacity: 128k-bit (16k x 8)
• Access Time: 120ns, ensuring swift data retrieval and storage
• Automatic Write Protection: When VCC falls below the power-fail deselect voltage, the device write protects itself, safeguarding the data even during power loss.
• 10 years Minimum Data Retention in the Absence of External Power
• Directly Replaces Volatile Static RAM (SRAM)
• No External Batteries Required
• Unlimited Write Cycles
• Low-Power CMOS

Applications:

The DS1225Y-120 is particularly suited for use in systems that need to preserve critical data when they are powered off, making it ideal for applications such as:

• Real-Time Clocks
• Industrial Controllers
• Server Nonvolatile BIOS Memory
• Medical Devices
• Black Box Data Recovery Systems

Reliability and Quality:

Maxim Integrated is known for its commitment to quality and reliability, and the DS1225Y-120 is no exception. It is constructed with the highest standards to ensure that data is kept safe and secure for a minimum of 10 years without external power. The nonvolatile nature of the SRAM means that it does not require a battery change, eliminating maintenance concerns and reducing the total cost of ownership.

For designers looking for a robust memory solution that combines the access speed of SRAM with the nonvolatility of EEPROM, the DS1225Y-120 from Maxim Integrated presents an excellent choice. Its plug-and-play compatibility with volatile SRAM makes it an easy upgrade for systems requiring data persistence without redesigning the memory subsystem.