Maxim Integrated DS1340-3.3 Real-Time Clock

The DS1340-3.3 from Maxim Integrated is a highly integrated, low-power real-time clock (RTC) with a full binary-coded decimal (BCD) clock/calendar and 56 bytes of NV SRAM. Operating at a voltage of 3.3V, this RTC is designed to provide precise time and date information ranging from years down to seconds, and includes a built-in power-sense circuit that detects power failures and automatically switches to the backup supply, maintaining time and date operation.

Key Features:

• Accurate Timekeeping: Integrated oscillator compensation ensures minimal time deviation, making it suitable for time-critical applications.
• Low Power Consumption: Designed for power-sensitive applications, the DS1340-3.3 consumes minimal power, making it ideal for battery-backed systems.
• Automatic Backup: Features an automatic switch to a backup power supply in the event of a primary power failure, ensuring uninterrupted timekeeping.
• Simple Interface: Communicates via a simple I2C interface, allowing for easy integration into existing designs.
• Non-Volatile SRAM: Comes with 56 bytes of non-volatile SRAM, providing storage for data that must be preserved during power loss.
• Trickle-Charge Capability: Supports a trickle-charge battery backup system to maintain timekeeping when main power is unavailable.

Applications:

The DS1340-3.3 is versatile and can be employed in a wide range of applications, including:

• Handheld devices
• Telematics
• Industrial systems
• Embedded systems
• Utility meters
• Medical devices

With its compact design and robust feature set, the Maxim Integrated DS1340-3.3 RTC is an excellent choice for designers who require a reliable and power-efficient real-time clock solution. Its ease of integration and support for battery backup make it a go-to component for maintaining accurate time across a variety of applications.