Description
The module is equipped with chip PCF8563. It provides accurate and independent intervals. Operating voltage is from 1.8 V to 5.5 V. It allows you to read the time in hours, minutes, and seconds, date: month, day, year. Communication is performed via the I2C bus. An additional advantage is the possibility of generating frequencies: 32.768 kHz, 1,024 kHz, 32 Hz or 1 Hz.
The module also allows for a cascading connection on other devices on the I2C bus.
Specification
- Supply voltage: from 1.8 V to 5.5 V
- Chip: PCF8563
- Mountedbattery CR122
- Soldered goldpin connectors - 2.54 mm raster
- The ability to cascade connect the next module attached
- Jumper to select the supply voltage of the external DC or battery power BAT
Inputs
| Pin | Description |
|---|---|
| CLKOUT | Programmable clock output. |
| GND | The ground of the system. |
| VCC | Supply voltage: from 1.8 V to 5.5 V. |
| SDA | Data line of the I2C bus. |
| SCL | Line clock of the I2C bus. |
| INT | The external interrupt. |
Useful links |
