Maxim Integrated DS1644P-120+ Nonvolatile Timekeeping RAM

The Maxim Integrated DS1644P-120+ is a cutting-edge memory and timekeeping solution designed for applications that demand reliable data storage and precise time tracking. This high-performance component combines a full-featured real-time clock (RTC) and a nonvolatile static RAM (NV SRAM) in one convenient package, ensuring that both timekeeping and data retention are maintained even in the event of a power loss.

Key Features

• Integrated Power-Fail Protection: The DS1644P-120+ features an onboard lithium energy source and control circuitry, which guarantees that the timekeeping and SRAM functions continue to operate during a power failure.
• Real-Time Clock: This device provides a full binary-coded decimal (BCD) clock calendar that is accurate over the full industrial temperature range. The clock includes seconds, minutes, hours, day, date, month, and year information with leap year compensation up to the year 2100.
• High-Speed NV SRAM: The DS1644P-120+ offers 32K x 8 bits of nonvolatile static RAM, allowing for quick access to data and ensuring that the contents are preserved during power loss without the need for an external battery.
• Automatic Write-Protection: Write operations to the clock and SRAM are inhibited during power-down and power-up, ensuring data integrity.
• Low Power Consumption: Designed for energy efficiency, this device operates in a wide voltage range and has a low power standby mode, making it ideal for battery-backed applications.

Applications

The DS1644P-120+ is ideally suited for a wide variety of applications that require reliable timekeeping and data storage, such as:

• Industrial systems
• Embedded systems
• Utility meters
• Point-of-sale terminals
• Medical devices
• Security systems

Technical Specifications

• Memory Size: 32K x 8 NV SRAM
• Supply Voltage: 4.5V to 5.5V
• Operating Temperature: 0°C to +70°C
• Package: 28-Pin EDIP or 32-Pin TSOC

With its robust feature set and Maxim Integrated's reputation for quality, the DS1644P-120+ is a reliable choice for maintaining critical data and time information across a broad range of demanding applications.