Memory Module DS3231 AT24C32 IIC DS3231SN DS3231 mini 3.3V/5V, Mandai

The Ds3231 is an extremely accurate, low-cost I2C real-time clock (RTC), with an integrated temperature-compensated crystal oscillator (TCXO) and crystal. The device combines battery input, disconnects from the main power source, and maintains the ability to accurately tell the time. The integrated oscillator improves the long-term accuracy of the equipment and reduces the number of components in the production line. The DS3231 is available in commercial and industrial temperature ranges, using a 300mil 16-pin SO package.
RTC maintains the information of seconds, minutes, hours, day, date, month and year. For days under 31 in a month, the end date will be automatically adjusted, including adjustments for leap years. The clock operates in either 24-hour or band/AM/PM format indicating the 12-hour format. Provides two configurable alarm clocks and a calendar that can be set to square wave output. Addresses and data are transmitted serially through the I2C bidirectional bus.
The voltage reference integrates a precision temperature and status-monitoring comparator circuit of VCC to detect power faults, provide a reset output, and, if necessary, automatically switch to a backup power source. Additionally, the RST pin is monitored when the manually generated μP is reset.
Saving time and providing high-precision addition, the DS3231 also has several other features to expand the server system, including additional features and a range of options. The device integrates a highly accurate digital temperature sensor, accessible through the I2C* interface (at the same time). The accuracy of this temperature sensor is ± 3. ° C. The power control circuit on the chip can automatically detect and manage the main and standby power sources (i.e., low-voltage batteries) to switch between power sources. If the main power is lost, the device can continue to provide accurate time and temperature, and performance is not affected. When the main power supply or voltage value returns to the allowable range, the on-chip reset function can be used to restart the system microprocessor.

Module specifications:
1 Dimensions: 38mm (length) * 22mm (width) * 14mm (height)
2 Weight: 8g
3 Operating voltage: 3.3-5.5 V
4 clock chips: high-precision clock chip DS3231
Accuracy of 5 clocks: 0-40 ° Range, accuracy 2ppm, error about 1 minute
Alarm clock with 6 calendars and two...
7 programmable square wave outputs
8 The machine generates real-time clocks, minutes, hours, days, dates, months and years and provides validity until the year 2100 after the compensation year.
9 chip temperature sensors come with an accuracy of ± 3. °
10 memory chips: AT24C32 (32K storage capacity)
-IIC bus interface, maximum transmission speed 400KHz (working voltage 5V)
12 can be stacked with other IIC devices, the address 24C32 can be shortened A0 / A1 / A2 modified to the default address 0x57.
13 with a rechargeable LIR2032 battery, to ensure that after a power outage, the c