Package Included

- 1 x PCF8563 PCF8563T IIC Real Time Clock RTC Module Board better than DS3231 AT24C32

Description:

- PCF8563 is better than DS3231 AT24C32
- The PCF8563 is a CMOS real-time clock/calendar optimized for low power consumption.
- A programmable clock output, interrupt output and voltage-low detector are also provided.
- All address and data are transferred serially via a two-line bidirectional I2C-bus. Maximum bus speed is 400 kbits/s.
- The built-in word address register is incremented automatically after each written or read data byte.

- Provides year, month, day, weekday, hours, minutes and seconds
- Century flag
- Wide operating supply voltage range: 1.0 to 5.5 V
- Low back-up current; typical 0.25 mA at VDD = 3.0 V and Tamb = 25 °C
- 400 kHz two-wire I2C interface (at VDD = 1.8 to 5.5 V)
- Programmable clock output for peripheral devices: 32.768 kHz, 1024 Hz, 32 Hz and 1 Hz
- Alarm and timer functions
- Voltage-low detector
- Integrated oscillator capacitor
- Internal power-on reset
- I2C-bus address: read A3H; write A2H

Reference

• https://electropeak.com/learn/interfacing-pcf8563-real-time-clock-rtc-module-with-arduino/