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1、 Introduction to PCF8563 Clock Chip
PCF8563 is an industrial grade multifunctional clock/calendar chip launched by PHILIPS company, which includes I2C bus interface function and has extremely low power consumption. The various alarm functions, timer functions, clock output functions, and interrupt output functions of PCF8563 can complete various complex timing services, and even provide watchdog functions for microcontrollers. It is a highly cost-effective clock chip that has been widely used in the fields of electricity meters, water meters, gas meters, telephones, fax machines, portable instruments, and battery powered instruments.
Main performance indicators of PCF8563:
★ Backup batteries can be used for power supply
★ Wide voltage range of 1.0~5.5V
★ Ultra low power consumption: typical value is 0.25uA
★ Serial input/output through I2C bus
The programmable clock output frequency is 32.768KHz, 1024Hz, 32Hz, 1Hz.
★ Four alarm functions and timer functions
★ Includes reset circuit, oscillator capacitor, and power failure detection circuit
★ Open drain interrupt output
★ 400KHZ high-speed read and write
2、 Module interface description
Left battery installation interface
Pay attention to the direction during installation and install according to the direction shown in the picture
Right INT interrupt output (usually not used)
COT clock output terminal (generally not used)
SCL IIC clock interface connected to microcontroller IO port
SDA IIC digital interface connected to microcontroller IO port
GND module ground external grounding
VCC power interface external 3.3v-5v
3、 Test instructions
Download the program from folder 51 in the attached materials to the STC89C52 microcontroller (the program has good compatibility and can be used in other microcontrollers with slight modifications). After powering on, open the serial port to receive the running clock information.
After downloading the program, open the serial debugging tool to receive information on year, month, day, hour, minute, and second.
Color: As shown
Size: Reference picture
Package includes: 1pc
Note:
1. Due to manual measurement, please allow an error of 1-3mm.
2. As different computers display different colors, thank you for your understanding, the actual product color may be slightly different from the image.