Real Time Clock Module (RTC)- DS1307

Description

Module with real time clock and backup battery (battery included). It allows you to read the time in hours, minutes, and seconds, date: month, day, year. It has 32 KB of EEPROM. The communication interface is an I2C bus(SDA and SCL), data update frequency is 1 Hz (1 second). It is the output of the temperature sensor DS18B20.

Connection

The supply voltage of5 Vis connected to the terminal marked with the same symbol. The I2C bus must be connected to the outputs SCL– clock line andSDA – data line. PinSQis the output of a rectangular signal with the selected frequency (see page 3 of the documentation).GNDis the ground system.

Connectors

Outputs are solder fields for soldering goldpin connectors- 2.54 mm raster (not included). Thanks to them, it is possible to connect the system with the breakout board or the main module (for example,STM32Discovery or Arduino) via wires.

Specification

• Supply voltage: 5 V
• Current consumption: less than 500
• The interfaceof communication: I2C / TWI (SDA, SCL)
• Update rate: 1 Hz (1 second)
• Available data:
  • Time: time (AM, PM), minute, second
  • Date: month, day, year
• Data storage using batteries (not included)
• Accurate calendar up to 2100
• Memory EEPROM: 32 KB
• The dimensions of the plate: 28 x 28 mm