Maxim Integrated's DS1302SN+ Real-Time Clock (RTC)

The DS1302SN+ from Maxim Integrated is a versatile real-time clock (RTC) module that provides a comprehensive timekeeping solution for a myriad of applications. This compact, surface-mount device is designed to maintain accurate time and date information, ranging from seconds to years, and is particularly well-suited for systems that require a reliable timebase.

Key Features

• Trickle-Charge Timekeeping Chip: The DS1302SN+ includes an integrated trickle-charge circuit that allows for a backup energy source, such as a small lithium coin cell, to maintain timekeeping when the main power is unavailable.
• Serial Interface: The device features a simple serial interface for easy integration into a wide range of microcontroller-based systems. This interface minimizes the pin count required for RTC functionality, which is especially beneficial for designs with limited board space.
• Byte-Wise Addressing: Access to the DS1302SN+ is simplified by its byte-wise addressing, which allows for a straightforward data transfer process.
• Dual-Power Supply Pins: With dual power supply pins for primary and backup power, the DS1302SN+ ensures continuous operation and data retention.

Applications

The DS1302SN+ is an ideal choice for applications such as:

• Embedded systems
• Utility meters
• Consumer electronics
• Industrial time tracking
• Handheld devices

Technical Specifications

• Operating Voltage: 2.0V to 5.5V
• Operating Temperature: -40°C to +85°C
• Package Type: 8-SOIC (0.154", 3.90mm Width)

The DS1302SN+ is a testament to Maxim Integrated's commitment to providing high-quality, reliable integrated circuits. Its combination of features, including the trickle-charge capability and serial interface, make it an excellent choice for designers looking for a low-power, highly integrated RTC solution.

For detailed technical specifications, application notes, and support resources, please refer to the official Maxim Integrated product page and datasheets.