DS3234 Real-Time Clock Board, SPI Output, ±2ppm Accuracy

Description

DS3234 Real-Time Clock Board, SPI Output, ±2ppm Accuracy
Important Note on Shipping Delays via United States Postal Service: Currently we see significant delays in shipments via USPS, up to 3 weeks (!) to deliver within the USA. If you need your item fast, we suggest you select Fedex shipping upon checkout, instead of the standard USPS shipping.
BOB-10160
The DeadOn RTC Board is a real-time clock based on the DS3234 IC. The DS3234 is a low-cost, extremely accurate SPI bus real-time clock with an integrated temperature-compensated crystal oscillator and crystal.
The RTC maintains seconds, minutes, hours, day, date, month, and year information. The date at the end of the month is adjusted automatically for months with fewer than 31 days, including corrections of leap year. The clock operates in either 24-hour mode or 12-hour AM/PM format. Two programmable time-of-day alarms and a programmable square-wave output are provided.
The underside of the board contains a holder for a 12mm CR1225 coin-cell battery for backup.
Battery not included.
DS3234 RTC Board Features
±2ppm accuracy
Two alarms
SPI output
Low power consumption
Accurate calendar up to year 2100
Battery backup capability (battery not included)
DS3234 RTC Board Resources
DeadOn RTC Board Schematic
BRD and SCH files for Eagle
Maxim DS3234 Datasheet
Example Arduino Sketch
Implementation of JeeLabs RTClib