DS3231 Real Time Clock Module

DS3231 Real Time Clock Module - Image 1
DS3231 Real Time Clock Module - Image 2
DS3231 Real Time Clock Module - Image 3
DS3231 Real Time Clock Module
DS3231 Real Time Clock Module Top
DS3231 Real Time Clock Module Bottom

High Accuracy I2C DS3231 Real Time Clock Module with 32Kbit EEPROM and built-in 10 bit temperature sensor having resolution of 0.25C.

The DS3231 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 main power to the device is interrupted. The integration of the crystal resonator enhances the long-term accuracy of the device as well as reduces the piece-part count in a manufacturing line. The DS3231 is available in commercial and industrial temperature ranges, and is offered in a 16-pin, 300-mil SO package.

Without Battery

Specifications

Battery Type
CR2032 (Not included)
Date Format
YY-MM-DD-dd
EEPROM
AT24C32 32Kbit Serial I2C
Input Voltage
Voltage – Supply Battery: 2.2 V ~ 5.5 V (for RTC) Operating Voltage: (VCC): 2.7V ~ 5.5V (including 24C32)
Interfaces
I2C interface
Length x Width x Height
38mm x 22mm x 14mm
Operating Voltage
3.3V Minimum 5.0V Maximum
Sensor
Digital Temp Sensor 10 bit
Special Features
1Hz output pin SQW 32KHz output pin 32K
Temperature Range
0°C to +70°C
Time Format
HH:MM:SS (12/24 hr)