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Details for DS3231SN# by Maxim Integrated
Electronic & Electrical Components > Semiconductors - ICs > Clocks Timing & Frequency Management
RTC TCXO CRYSTAL 3.3V 16SOIC
DS3231SN# image

DS3231SN# by Maxim Integrated

RTC TCXO CRYSTAL 3.3V 16SOIC
Features
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
Description
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.
Specifications
Date Format:
DD
Clock Format:
HH
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:
-40°C
Operating Temperature Max:
85°C
Product Range:
-
Automotive Qualification Standard:
-
RoHS Phthalates Compliant:
To Be Advised
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (15-Jan-2018)
Base Number:
3231
Clock Frequency:
32.768kHz
No. of Outputs:
1Outputs
Operating Temperature Range:
-40°C to +85°C
RTC Features:
Square-Wave Output
Supply Voltage Range:
2.3V to 5.5V
Termination Type:
Surface Mount Device
Voltage Vcc:
3.3V
Alternate Descriptions
Real Time Clock Serial RS Components
ALARM RTC, I2C, 5.5V, SOIC-16; Date Format:Day; Date; Month; Year; Clock Format:HH:MM:SS; Clock IC Type:Alarm RTC; Supply Voltage Min:2.3V; Supply Voltage Max:5.5V; Clock IC Case Style:SOIC; No. of Pins:16Pins; IC Interface Type:I2C 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
DS3231 Series 5.5 V Extremely Accurate I2C-Integrated RTC/TCXO/Crystal - SOIC-16 Future Electronics