his is an HW-689 PCF8563 Real-time Clock RTC module. It has a variety of functions, including an external programmable clock output, an alarm, a timer, features, external quartz, and a backup battery.
The PCF8563 RTC Board provides a real-time clock function that is powered by an
onboard battery and operates independently even when the MCU is turned off. I2C real-time clock (RTC) is less expensive and more precise than the DS1302 or DS1307.
Features
- High Accuracy
- Low Power Consumption
- Can be interfaced with Arduino
- Low Cost
- I2C Real Time Clock (RTC)
Pinout:
-
Pin-1: INT
- Pin-2: COT
- Pin-3: SCL
- Pin-4: SDA
- Pin-5: GND
- Pin-6: VCC
SPECIFICATIONS
Model |
HW-689 |
Type |
Real-time Clock RTC Module |
Using Inbuilt IC |
PCF8563 |
Size |
43*17mm
|
No of Pins |
06 |
Voltage Range |
1 - 5.5V |
Interface |
I2C |