ALLNET 4duino DS3231 RTC Real Time Clock Module AT24C32 Memory Real Time Clock IIC Module for Arduino AVR UNO ARM PIC
RTC DS3231 AT24C32 Memory Real Time Clock IIC Module for Arduino AVR UNO ARM
The DS3231 module is an accurate IIC real time clock (RTC), with integrated temperature - Crystal oscillator (TCXO) and crystal.
Queries: seconds, minutes, hours, day, date, month and year.
Date is automatically adjusted, including corrections for leap years.
The clock operates in either the 24 hour or AM/PM mode 12 hour format. The module offers two configurable “alarm clocks” and a calendar.
The square wave output is programmable. Address and data are transmitted bidirectionally serially via an IIC or I2C bus. A precision temperature-compensated
reference voltage and a comparator circuit monitors the status of the VCC to quickly detect a power failure. The IC has an integrated very precise digital
temperature sensor that can be queried via the i2C interface.
The module has a battery.
Technical data: - Operating voltage: 3.3 to 5.5 V

• RTC chip DS3231
• Accuracy of the clock 0-40? , 2ppm
• calendar with 5,1 cm ( 2 inch )alarm clocks\dlash- programmable square wave signal output
• Eeprom: AT24C32 (storage capacity 32K)
• IIC bus interface, maximum transmission speed of 400 kHz (at VCC 5V)
• can be cascaded with other i2C modules
• battery CR2032 , in the event of a power failure, the RTC stand-alone continues to run
• Module L x W x H approx.: 38 x 22 x 15mm (length with pin header approx. 44mm)
• Weight approx. 8g
Scope of delivery: - 1 piece DS3231 module Ready for operation (incl. button cell 2032 )