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Details for DS3231S# by Maxim Integrated
Electronic & Electrical Components > Semiconductors - ICs > Clocks Timing & Frequency Management
DS3231S# image

DS3231S# by Maxim Integrated

3.3V Operation
Accuracy u00b12ppm from 0u00b0C to +40u00b0C
Accuracy u00b13.5ppm from -40u00b0C to +85u00b0C
Battery-Backup Input for Continuous Timekeeping
Digital Temp Sensor Output: u00b13u00b0C Accuracy
Fast (400kHz) I2C Interface
Highly Accurate RTC Completely Manages All Timekeeping Functions
Low Power Operation Extends Battery-Backup Run Time
Operating Temperature Ranges: Commercial (0u00b0C to +70u00b0C) and Industrial (-40u00b0C to +85u00b0C)
Programmable Square-Wave Output Signal
RST Output/Pushbutton Reset Debounce Input
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
Register for Aging Trim
Simple Serial Interface Connects to Most Microcontrollers
Two Time-of-Day Alarms
Underwriters Laboratoriesu00ae (UL) Recognized
Part Information
DS3231S# image
RoHS Compliant
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.
Date Format:
Clock Format:
Clock IC Type:
Supply Voltage Min:
Supply Voltage Max:
Clock IC Case Style:
No. of Pins:
IC Interface Type:
Operating Temperature Min:
Operating Temperature Max:
Product Range:
Automotive Qualification Standard:
RoHS Phthalates Compliant:
To Be Advised
MSL 1 - Unlimited
No SVHC (15-Jan-2018)
Operating Temperature Range:
0°C to +70°C
Supply Voltage Range:
2.3V to 5.5V
Alternate Descriptions
Real Time Clock Serial RS Components
RTC, 0 TO 70DEG C; Date Format:YY-MM-DD; Clock Format:HH:MM:SS; Clock IC Type:RTC; Supply Voltage Min:2.3V; Supply Voltage Max:5.5V; Clock IC Case Style:WSOIC; No. of Pins:16Pins; IC Interface Type:I2C; Operating Temperature Min:0°C RoHS Compliant: Yes Newark Electronics
Real Time Clock Serial 16-Pin SOIC W Avnet America
Real Time Clock Serial 16-Pin SOIC W Avnet Europe
Real Time Clock Serial 16-Pin SOIC W Avnet Asia
RTC IC [Maxim] DS3231S# RTC IC Distrelec
DS3231 Series 2.3 to 5.5V Accurate I2C Real-Time Clock with TCXO - SOIC-16 Future Electronics