- Operating Voltage: 2.7~5. 5 V
- Clock chip: high precision clock chip DS3231
- Accuracy 5 hours: range 0-40 °, accuracy 2ppm, the error was about 1 minute
- Calendar alarm clocks with two
- Programmable square waves
Description:
DS3231 RTC is a Precise Real-Time Clock Module with a 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. 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 Arduino is available in commercial and industrial temperature ranges and is offered in a 16-pin, 300-mil SO package.
Specification:
| Operating Voltage Range | 2.7V ~ 5.5V (including 24C32) |
| Voltage Supply for RTC | 2.2 V ~ 5.5 V |
| Accuracy | ±2ppm from 0°C to +40°C |
| Battery Holder | 2032 Coin Battery |
| I2C interface | Fast (400kHz) I2C Interface |
| EEPROM | AT24C32 32Kbit Serial I2C |
| Time and Date Format | Time: HH: MM: SS (12/24 hr) |
| Operating Temperature Range | Commercial (0°C to +70°C) |
| Digital Temp Sensor Output | 10 bit, ±3°C Accuracy and 0.25C resolution |
Features:
- Two Time-of-Day Alarms.
- Digital Temp Sensor Output.
- Register for Aging Trim.
- DS3231 RTC with 2032 Battery Holder.
- Highly Accurate RTC Completely Manages All Timekeeping Functions.
- Real-Time Clock Counts Seconds, Minutes, Hours, Date of the Month, Month, Day of the Week, and Year, with Leap-Year Compensation Valid Up to 2100.
- Configurable I2C device Address for AT24C32 using SMD jumpers on PCB (A0, A1, A2).
- Programmable Square-Wave Output Signal.
- Battery-Backup Input for Continuous Timekeeping.
- Low Power Operation Extends Battery-Backup Run Time.
Package Included:
1 x DS3231 AT24C32 IIC Precision RTC Real Time Clock Memory Module