The DS1644P-120 is a versatile and robust integrated circuit product from Maxim Integrated, designed to serve as a comprehensive solution for applications requiring both a real-time clock (RTC) and nonvolatile memory. This unique combination of a full-featured RTC and 32KB of nonvolatile static RAM makes it an ideal choice for a wide range of timekeeping applications that also require data storage that is not lost when the power is turned off.

Key Features

• Real-Time Clock (RTC): Keeps track of seconds, minutes, hours, days, date, month, and year information with automatic leap year compensation valid up to 2100.
• Nonvolatile Memory: 32KB of static RAM with a built-in lithium energy source ensures data retention without external power for over 10 years.
• Power-Fail Protection: Write protection ensures data integrity during power transitions.
• High-Speed Interface: The device supports direct bus connection to most microprocessors, facilitating easy integration into a system.
• Low Power Consumption: Designed for energy efficiency, it is an ideal component for battery-backed applications.

Applications

The DS1644P-120 is suitable for a variety of applications, including but not limited to:

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

Technical Specifications

• Supply Voltage: 4.5V to 5.5V
• Operating Temperature: 0°C to +70°C
• Package: 28-pin 600-mil EDIP or 32-pin LCC
• Speed: 120ns access time

With its combination of durability, precision, and reliability, the DS1644P-120 from Maxim Integrated is the go-to choice for professionals looking for a high-quality RTC and nonvolatile memory solution. Its longevity and ease of integration make it a valued component in any time-sensitive and data-critical application.