The DS1342 Low-Voltage SPI/3-Wire Real-Time Clocks (RTCs) are highly integrated timekeeping solutions from Maxim Integrated that offer a wide range of features for industrial and embedded applications. These devices provide a full binary-coded decimal (BCD) clock/calendar that is accessible through a simple Serial Peripheral Interface (SPI) or a 3-wire interface.

Key Features

• Accuracy: The DS1342 RTC maintains time with high precision, providing accuracy over the full temperature range of -40°C to +85°C.
• Low Voltage Operation: Designed to operate in low-voltage conditions, this device functions optimally in the range of 1.8V to 5.5V, making it suitable for battery-backed applications.
• Low Power Consumption: With its low power requirements, the DS1342 is ideal for portable devices, extending the battery life while maintaining accurate timekeeping.
• Memory Backup: The integrated battery-input pin allows for a backup power supply, ensuring that timekeeping continues uninterrupted during main power loss.
• Flexible Interface Options: Users can communicate with the RTC through either an SPI or a 3-wire interface, providing versatility in various system designs.
• Alarm Function: The DS1342 features a programmable alarm that can be set to trigger on a specific date, day of the week, hour, minute, or second, offering a customizable alert system for time-sensitive applications.

Applications

The DS1342 is well-suited for a variety of applications that require accurate timekeeping and low power consumption. It is commonly used in:

• Handheld devices
• Medical devices
• Industrial controls
• Utility meters
• Consumer electronics

Technical Specifications

With its combination of features, the DS1342 from Maxim Integrated stands out as a reliable and flexible choice for real-time clock functionality in a wide range of products.