2. Soldering the headers Before using your click board, make sure to solder the provided 1x8 male headers to both sides of the board. Two 1x8 male headers are included with the board in the package. 1 RTC click 2 3 1. Introduction 4. Board applications RTC click is ideal for applications which require real-time clocks, calendars and Turn the board upside down, so that Turn the board upward again. Make sure programmed alarms. Communication with 2 bottom side is facing you upwards. Place to align the headers so that they are the board is done over standard I C interface. shorter parts of the header pins in the perpendicular to the board, then solder the The Real-Time Clock (RTC) has 24 hour or both soldering pad locations. pins carefully. 12 hour format, it has programmable alarm, timer, and interrupt function. RTC Click is an accessory board in mikroBus form factor. It features the PCF8583P serial 3. Plugging the board in real-time clock (RTC). It is a low-power, full click binary-coded decimal (BCD) clock/calendar. Once you have soldered the headers your 2 Board uses I C interface for communication board is ready to be placed into desired BOARD and features a 3V/230mA lithium battery mikroBUS socket. Make sure to align the www.mikroe.com as a backup power supply which ensures that cut in the lower-right part of the board timekeeping operation continues even when with the markings on the silkscreen at the RTC click Manual the main power supply goes OFF. Board is set mikroBUS socket. If all the pins are aligned ver. 1.00 to use 3.3V power supply by default. Solder correctly, push the board all the way PWR SEL SMD jumper to 5V position if used into the socket. 0 100000 020104 with 5V systems.6. Power supply selection 5. RTC click Board Schematics On-board PWR SEL zero- ohm resistor (SMD jumper) is used to determine whether 5V or 3.3V power supply VCC is used. This resistor is R2 provided in 3.3V position 220 by default. In order to use RTC click with Vrtc 5V development system, it is necessary to PWR D2 BAT43 resolder this jumper to 5V position. R1 56 D1 BAT43 VCC 7. Code Examples VCC BAT1 C3 Once you have done all the necessary 3V/230mA C1 preparations, its time to get your click 100nF 100nF board up and running. We have provided J1 the examples for mikroC, mikroBasic and mikroPascal compilers on our Libstock +3V3 +5V website. Just download them and you are ready to start. Vrtc Vrtc VCC AN PWM INT RST INT C2 CS RX U1 R3 R4 R5 22pF .com SCK TX 1 8 4K7 4K7 4K7 SCL OSCI VCC SCL 2 7 INT MISO SDA X1 OSCO INT MOSI SDA 3 6 SCL 32.768KHz A0 SCL +3.3V +5V 4 5 SDA GND SDA GND GND 8. Support PCF8583P MikroElektronika oers ff Free Tech Support (www.mikroe.com/esupport) until the end of product lifetime, so if something goes wrong, we are ready and willing to help MikroElektronika assumes no responsibility or liability for any errors or inaccuracies that may appear in the present document. Specification and information contained in the present schematic are subject to change at any time without notice. Copyright 2012 MikroElektronika. All rights reserved. 1 2 3