Module, watch, battery

First of all, introduce the characteristics and advantages of this module (either you do not do it, you need to do the best if you do it):

1. All that may be used to lead:In addition to leading the two necessary ports of SDA and SCL, they also lead to the int and cOTs that may be used.
2. spare battery:When the system is powered off, the spare battery is powered on the PCF8563 chip, and the low power consumption of PCF8563 ensures that the battery can be powered normally for ten years.
3. Crystal:The new original authentic crystal oscillator ensures the stable and accurate time travel of the chip PCF8563.
4. Advantages of the chip itself:In the actual project of the store owner, he used a variety of clock chips and found that Philips' chip is the most stable, the most accurate, and the lowest power consumption.Clock chips like DS1302 are simply weak.Highly recommendPCF8563 clock chip.
5. price advantage:We are a manufacturer and have absolute advantages in price. We can also do the price that other companies can do (the batch price is better).

6. 1. PCF8563 clock chipintroduce

   PCF8563 is an industrial -grade interior I2C launched by PhilipsBus interfaceFunction with a very low power consumption multifunctional clock/calendar chip.PCF8563's multiple alarm functions,TimerFunction, clock output function, and interrupt output function can complete various complex timing services, and even can even be used asSingle -chip machinesupplyGangFunction.It is a very cost -effectiveClock chipIt has been widely used in meters, water meters, gas meters,Telephone, Fax machines, portable instruments, and battery power supply instruments and other products.

    

   PCF8563Main performance indicators:

    ★ Power supply can be used for backup batteries 

    ★Wide voltage range 1.0 ~ 5.5V  

    ★Ultra -low power consumption: typical value is 0.25UA 

    ★ Enter/output through the serial input/output of the I2C bus   

    ★The output frequency of the programmable clock is: 32.768kHz, 1024Hz, 32Hz, 1Hz. 

    ★Four alarm functions and timer functions

    ★Contains reset circuit, oscillator capacitor and power loss detection circuit   

    ★Discard interruption output  

    ★ 400kHz high -speed reading and writing

   2. Module interface description

    

    Battery installation interface on the left

        Pay attention to the direction during installation, install according to the direction on the picture

    The right INT interrupt output (generally not used)

        COT clock output end (generally not used)

        SCL IIC clock interface Pick up the single -chip machine IO port 

        SDA IICDigital interface Pick up the single -chip machine IO port

        GND Module land      Externally

        VCC Power interface    3.3V-5V external connection

   Third, test description

    Download the program in the 51 folder in the attached information to the STC89C52 single -chip microcomputer (the program is very good, and you can use it in other single -chip microcomputers). After powering, open the serial port to receive the running clock information.

7. After the program is downloaded, open the serial port debugging tool to receive information of the year, month, day, time, time, minute, and seconds.

8. 5. Precautions

   1. The yellow (or black) needle is attached to the customer at the time of delivery, but it is not welded on the board; the customer can welded the needle or not welded or welded other plug -in (do not tell us that there is no electric ironThis is essential to engage in electronics).

    

   2. The attached program is tested on the STC89C52. The Keil compiles the environment, but only provides reference and theoretical technical support, and does not provide services for debugging and reading procedures. Please forgive me. Thank you, thank you