Maxim Integrated DS1248Y150 Nonvolatile Memory Solution

The DS1248Y150 is a high-performance, 1024k Nonvolatile (NV) SRAM with Phantom Clock from Maxim Integrated. This memory module is designed to provide a reliable and durable data storage solution, combining the access speed of static RAM with a nonvolatile backup data capability. This ensures data retention without the need for an external battery, making it an ideal choice for a wide range of applications where data integrity and retention are critical.

The DS1248Y150 features a unique Phantom Clock, which includes a real-time clock/calendar and a programmable interrupt for time-stamping data or for wake-up alarms. The clock/calendar provides seconds, minutes, hours, day, date, month, and year information. The end of the month date is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in either 24-hour or 12-hour format with an AM/PM indicator.

With a 150ns access time, this NV SRAM ensures fast data access, making it suitable for high-speed microprocessor systems. The integration of the nonvolatile elements allows for data to be maintained for over 10 years in the absence of power. This is achieved through the use of an internal lithium energy source and a control circuit that automatically transfers data to and from the NV elements at power-up and power-down.

The DS1248Y150 is packaged in a 32-pin EDIP or JEDEC standard 32-pin TSOP, which provides a compact footprint for designs where space is at a premium. Additionally, the device supports a full active and standby operation, which allows for lower power consumption when the device is not in use.

Overall, Maxim Integrated's DS1248Y150 offers a robust and reliable nonvolatile memory solution that is perfect for mission-critical applications in industrial control systems, utility meters, medical devices, and other systems requiring data integrity and retention through power loss or system reset events.