RTC 4 Click Board™

The RTC 4 Click Board™ is based on the DS2417, a real time clock/calendar with a 1-Wire MicroLAN interface and a programmable interrupt for system output. The clock frequency is derived from an onboard 32.768KHz oscillator. An integrated backup energy source maintains a charge with an onboard coin cell supercapacitor. The clock has an accuracy of +/-2 minutes per month at a 25 degrees Celsius temperature. Depending on the position of the onboard jumper, the RTC 4 Click Board™ communicates with the target board MCU either through mikroBUS AN or PWM pin (here, GPI01, GPIO0), plus the INT pin. The board is designed to use either a 3.3V or 5V power supply.

IC/Module: DS2417

DS2417 is a time chip featuring a unique 64-bit lasered ROM and a real-time clock/calendar. It would make a great choice for any electronic appliance or embedded application using a microcontroller to add functions such as calendar, time and date stamp, and logbook. This compact, low-cost DS2417 package uses a 1-Wire interface for communication with the target board. It also has a programmable interrupt for system wakeup.

1F Supercapacitor

RTC4 Click Board™ includes a coin cell 1F supercapacitor that blends in with your design and enable the Click Board™ to do its work for a long time. On the Click Board™, the DS2417 IC is placed under the supercapacitor.

1-Wire Interface (Selectable Pins)

In RTC4 Click Board™, DS2417 acts as a slave device and communicates with the master MCU through a 1-Wire bus. With its 64-bit registration number, RTC4 Click Board™ can function within a MicroLAN network, i.e, a network of 1-Wire devices that are all associated with a master device.