Product Code: MIKROE-947

The RTC Click Board? is an accessory board designed to add time measuring functionality to the device. This Click Board? has a PCF8583 serial real-time clock/calendar. The PCF8583 IC is a full binary-coded decimal (BCD) clock and calendar chip with 24- or 12-hour clock format with a four-year calendar, based on a 2048-bit static CMOS RAM. For communication with the target board microcontroller, the?RTC Click Board? uses the I2C interface. The board comes with an integrated 3V/230mA lithium battery that serves as a backup power supply. Even when the main power supply goes OFF, this backup power supply enables the device to function continuously. It is designed to use a 3.3V power supply but can be used with 5V systems by soldering the PWR SEL SMD jumper to the 5V position.