DS1244Y-150+ ,Nonvolatile SRAM with Integrated Real-Time Clock-256K (32K x 8), 28-Pin DIP

The DS1244Y-150+ is a highly reliable nonvolatile SRAM with an integrated real-time clock, providing 256K (32K x 8) bits of memory organized in a 28-pin DIP package. This memory module is ideal for applications requiring accurate timekeeping and nonvolatile storage. The DS1244Y-150+ combines a static RAM and a timekeeping function, backed by an embedded lithium energy cell that maintains both timekeeping and data retention for over 10 years in the absence of power.

With an operating range from 0°C to +70°C and multiple access times available (120, 150, and 200 ns), this SRAM offers versatility and reliability for industrial and embedded applications. The Phantom Clock feature ensures continuous and precise time tracking down to seconds and is adjustable for various month lengths and leap years.

Key Features :

• Integrated Real-Time Clock: Tracks seconds, minutes, hours, days, dates, months, and years, with leap-year correction.
• Nonvolatile SRAM Storage: 256K (32K x 8) SRAM directly replaces standard RAM or EEPROM, retaining data without external power.
• Long Data Retention: Ensures over 10 years of data retention in the absence of power due to the embedded lithium energy cell.
• Multiple Access Times: Available in 120 ns, 150 ns, and 200 ns access times for flexibility in various applications.
• Transparent Operation: Watchdog function operates without interrupting the SRAM, making it ideal for time-sensitive applications.
• Wide Operating Range: Supports full operation from 0°C to +70°C, making it suitable for a variety of industrial and embedded systems.