Product details

RTC Module DS3231 3.3V/ 5V For Raspberry Pi

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. The RTC maintains seconds, minutes, hours, day, date, month, and year information. The date at the end of the month is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in either the 24-hour or 12-hour format with an AM/PM indicator. Two programmable time-of-day alarms and a programmable square-wave output are provided. Address and data are transferred serially through an I2C bidirectional bus. A precision temperature-compensated voltage reference and comparator circuit monitors the status of VCC to detect power failures, to provide a reset output, and to automatically switch to the backup supply when necessary. Additionally, the RST pin is monitored as a pushbutton input for generating a μP reset. DS3231 Mini RTC is a Mini Real-Time Clock module designs for Raspberry Pi, but it also can be used to Arduino. Plugging it into Raspberry Pi GPIO interface, and all is ok. This is the easiest way to keep it in time. Raspberry Pi foreigners most high precision clock module DS3231 Modules can adapt 3.3v 5v systems without conversion level, this is a super convenient.

Feature:

The 1.- ° C to + 85-40 ° C temperature range, timing accuracy maintained at ± 5ppm (± 0.432 seconds / day)
Timed to provide continuous battery backup
low-power
Device and function pack compatible with the DS3231
Full calendar clock functions include seconds, minutes, hours, day, date, month, and calendar year and provide valid until the year 2100 of leap year compensation
Two calendar alarm
Output from 7.1 hz and 32.768 kHz
Reset button debounced input and output
Speed (400 kHz) I2C serial bus
+ 2.3va + 5.5v Supply Voltage
3 ± ° C digital temperature sensor accuracy
-40 ° C to + 85 ° C operating temperature range
16-pin SO (300mil) package