DS3231 IC – (SMD SOP-16 Package) – I2C Real Time Clock (RTC) IC

DS3231SN Real Time Clock 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 push button input for generating a μP reset.

Benefits and Features of DS3231SN RTC IC

• 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

• Accuracy ±2ppm from 0°C to +40°C

• Accuracy ±3.5ppm from -40°C to +85°C

• Digital Temp Sensor Output: ±3°C Accuracy

• Register for Aging Trim

• RST Output/Pushbutton Reset Debounce Input

• Two Time-of-Day Alarms

• Programmable Square-Wave Output Signal Simple Serial Interface Connects to Most Microcontrollers

• Battery-Backup Input for Continuous Timekeeping Low Power Operation Extends Battery-Backup Run Time

• Operating Temperature Ranges: Commercial (0°C to +70°C) and Industrial (-40°C to+85°C)

Applications of DS3231 RTC IC

• Servers

• Telematics

• Utility Power Meters

• GPS

Specification:-