ADIDS1302N+
Overview
The DS1302N+ is a versatile trickle-charge timekeeping chip that contains a real-time clock/calendar and 31 bytes of static RAM. It communicates with a microprocessor via a simple 3-wire serial interface, providing seconds, minutes, hours, day, date, month, and year information with leap-year compensation valid up to 2100. The device is designed to operate on very low power, maintaining data and clock information with less than 1uA of current.
Why Choose This Part
The integrated trickle charger allows for easy management of rechargeable backup sources, simplifying power circuit design. Its 3-wire interface uses fewer pins than parallel or I2C alternatives, and the 8-pin DIP package is ideal for through-hole prototyping and socketed applications.
Applications
Key Specifications
Getting Started
Connect the DS1302N+ to a microcontroller using three digital I/O pins for CE, I/O, and SCLK. A 32.768kHz crystal must be connected to pins X1 and X2 to drive the internal oscillator. Many Arduino and C libraries exist to handle the burst-mode transfers for both the clock registers and the internal RAM.
