DS3231 AT24C32 IIC High Precision RTC Module Clock Timer Memory Storage Module with CR203
1. DS3231 is a low-cost, high-precision I2C real-time clock (RTC), with integrated temperature-compensated crystal oscillator (TCXO) and crystal. The device includes a battery input, which can maintain accurate timing when disconnecting the main power supply.
2. RTC stores seconds, minutes, hours, weeks, dates, months and years. For months less than 31 days, the end of the month will be automatically adjusted, including leap year revisions.
3. The working format of the clock can be 24 hours or 12 hours with/AM/PM indication. Provides two settable calendar alarm clocks and a settable square wave output. Address and data are transmitted serially through I2C bidirectional bus.
4. The accuracy of this temperature sensor is ±3°C. On-chip control circuit can realize automatic power supply detection and manage power switch between main power supply and standby power supply (i.e. low voltage battery).
5. If the main power supply fails, the device can continue to provide accurate timing and temperature without affecting its performance. The on-chip reset function can be used to restart the system microprocessor when the main power supply is re-energized or the voltage value returns to the allowable range.
1. With 2pcs calendar alarm clock.
2. Programmable Square Wave Output.
3. Real-time clocks generate seconds, minutes, hours, weeks, dates, months and years, and provide leap-year compensation valid until 2100.
4. Temperature sensor inside the chip with accuracy of ±3℃.
5. Memory chip: AT24C32 (storage capacity 32K).
6. IIC bus interface, maximum transmission speed is 400KHz (working voltage 5V).
7. Other IIC devices can be cascaded. The 24C32 address can be modified by short circuit A0/A1/A2. The default address is 0x57.
8. With rechargeable battery LIR2032, ensure that the system power off, the clock still moves normally.
Working Voltage: 3.3-5.5V
Clock Chip: High Precision Clock Chip DS3231
Clock accuracy: 0-40℃ range, accuracy of 2 ppm, annual error of about 1 minute
Type: with Battery
Wiring instructions (take for uno r3 as example):
SCL to A5
SDA to A4
VCC to 5V
GND to GND
Please allow 1-3mm differs due to manual measurement.
Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding.
1 x DS3231 AT24C32 Module