The DS1302S/T&R from Maxim Integrated is a versatile, low-power real-time clock (RTC) with a built-in trickle-charge capability. This integrated circuit (IC) provides a full binary-coded decimal (BCD) clock/calendar complete with 31 bytes of static random access memory (SRAM). It is designed to be a comprehensive solution for timekeeping in embedded systems.

Key Features

• Real-Time Clock/Calendar: Tracks time in hours, minutes, and seconds. The calendar functionality covers the date, month, and year, with automatic leap year compensation valid up to the year 2100.
• Trickle-Charge Capability: Allows the RTC to be powered by an external battery, enabling the clock to continue running even when the main power is lost. The trickle charger is programmable, ensuring optimal charging for the backup battery.
• Low Power Consumption: Designed for power-sensitive applications, the DS1302S/T&R consumes less power, making it ideal for portable devices and systems with strict power budgets.
• Byte-wide Interface: The device communicates with a microprocessor via a simple serial interface. This interface requires only three wires for operation, minimizing the pin count and simplifying board layout.
• RAM for User Data: In addition to its timekeeping capabilities, the DS1302S/T&R offers 31 bytes of SRAM, providing additional space for user data storage.

Applications

The DS1302S/T&R is suitable for a wide range of applications, including:

• Handheld devices
• Consumer electronics
• Industrial systems
• Healthcare devices
• Embedded systems

Package and Availability

The DS1302S/T&R comes in a surface-mount package that is RoHS compliant and is available in tape and reel format for automated assembly processes. As a product from Maxim Integrated, a trusted leader in the development of integrated circuits, customers can expect reliability and performance from the DS1302S/T&R RTC.