DS3231 Real Time Clock Module

It's a DS3231 Real Time Clock Module. This is a RTC based module. DS3231 RTC  is a Precise Real-Time Clock Module with 32Kbit EEPROM and a built-in 10-bit temperature sensor having a resolution of 0.25C. The DS3231 RTC module Precise Real-Time Clock Module is a low-cost, extremely accurate I²C real-time clock (RTC) with an integrated temperature-compensated crystal oscillator (TCXO) and crystal. The device incorporates a battery input and maintains accurate timekeeping when the main power to the device is interrupted.

Features 

• DS3231 based RTC with 2032 Battery Holder.
• Highly Accurate RTC
• Real-Time Clock Counts
• Digital Temp Sensor Output.
• Register for Aging Trim.
• Two Time-of-Day Alarms.
• Programmable Square-Wave Output Signal.
• Configurable I2C device Address for AT24C32 using SMD jumpers on PCB (A0, A1, A2).
• 1Hz output pin SQW.
• 32KHz output pin 32K.
• Time Format: HH: MM: SS (12/24 hr).
• Date Format: YY-MM-DD.

Specification 

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