MikroElektronika RTC click Manuale utente

1. Introduction

RTC Click is an accessory board in mikroBus™

form factor. It features the PCF8583P serial

real-time clock (RTC). It is a low-power, full

binary-coded decimal (BCD) clock/calendar.

Board uses I2C interface for communication

and features a 3V/230mA lithium battery

as a backup power supply which ensures that

timekeeping operation continues even when

the main power supply goes OFF. Board is set

to use 3.3V power supply by default. Solder

PWR SEL SMD jumper to 5V position if used

with 5V systems.

Once you have soldered the headers your

board is ready to be placed into desired

mikroBUS™ socket. Make sure to align the

cut in the lower-right part of the board

with the markings on the silkscreen at the

mikroBUS™ socket. If all the pins are aligned

correctly, push the board all the way

into the socket.

3. Plugging the board in

2 3

2. Soldering the headers

4. Board applications

RTC click is ideal for applications which

require real-time clocks, calendars and

programmed alarms. Communication with

the board is done over standard I2C interface.

The Real-Time Clock (RTC) has 24 hour or

12 hour format, it has programmable alarm,

timer, and interrupt function.

Turn the board upward again. Make sure

to align the headers so that they are

perpendicular to the board, then solder the

pins carefully.

Turn the board upside down, so that

bottom side is facing you upwards. Place

shorter parts of the header pins in the

both soldering pad locations.

RTC click

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.

click

BOARD

www.mikroe.com

RTC click Manual

ver. 1.00

0 100000 020104

5. RTC click Board Schematics

8. Support

MikroElektronika oers 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!

7. Code Examples

.com

Once you have done all the necessary

preparations, it’s time to get your click

board up and running. We have provided

the examples for mikroC, mikroBasic and

mikroPascal compilers on our Libstock

website. Just download them and you are

ready to start.

6. Power supply selection

On-board PWR SEL zero-

ohm resistor (SMD jumper) is

used to determine whether

5V or 3.3V power supply

is used. This resistor is

provided in 3.3V position

by default. In order to use RTC click with

5V development system, it is necessary to

resolder this jumper to 5V position.

D1 BAT43

32.768KHz

INT

RST

SCK

MOSI

MISO

+3.3V

GND

PWM

INT

SCL

SDA

+5V

GND

VCC

+5V+3V3

220

VCC

PWR

SCL

SDA

OSCI

OSCO

GND SDA

SCL

INT

VCC

PCF8583P

100nF

22pF

Vrtc Vrtc

4K7

VCC

4K7

INT

SCL

SDA

100nF

VCC

R1 56

Vrtc

D2 BAT43

BAT1

3V/230mA

MikroElektronika assumes no responsibility or liability for any errors or inaccuracies that may appear in the present document.

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