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RFQ ListingClock & Timer ICs

DS3231SN#T&R

Real-Time Clock with Integrated TCXO and Crystal

DS3231SN#T&R is a Maxim Integrated (Analog Devices) extremely accurate I²C-integrated real-time clock with temperature-compensated crystal oscillator (TCXO) and integrated crystal, offering ±2ppm timing accuracy from 0°C to +40°C in a compact 16-pin SOIC package. The device maintains seconds, minutes, hours, date, month, and year information with automatic leap-year compensation valid through year 2100, while a battery-backup input ensures continuous timekeeping during main power interruption.

ManufacturerAnalog Devices
PackageSOIC-16 (300 mil), 16-Pin
SeriesDS3231SN#T&R

RF / Timing Specifications

ParameterValue / Specification
Frequency32.768 kHz (Integrated TCXO with Crystal)
Outputs / ChannelsI²C Interface; Programmable Square-Wave Output; Two Time-of-Day Alarms
Timing Performance (Accuracy)±2 ppm accuracy (0 °C to +40 °C); ±3.5 ppm accuracy (−40 °C to +85 °C); Leap-Year Valid to 2100
Interface / ControlI²C (400 kHz Fast Mode); Battery-Backup Input (2.3 V to 5.5 V); RST Pushbutton Reset/μP Output
Package / CaseSOIC-16 (300 mil), 16-Pin
Supply Voltage (VCC)2.3 V to 5.5 V
Operating TemperatureCommercial (0 °C to +70 °C); Industrial (−40 °C to +85 °C)
Digital Temp Sensor±3 °C Accuracy Output
Aging Trim RegisterUser-Programmable for Calibration Adjustment

RF Features & Applications

  • Highly accurate RTC completely manages all timekeeping functions
  • Real-time clock counts seconds, minutes, hours, date of month, month, day of week, year with leap-year compensation valid up to 2100
  • Accuracy ±2 ppm from 0 °C to +40 °C; ±3.5 ppm from −40 °C to +85 °C
  • Digital temperature sensor output with ±3 °C accuracy
  • RST output/pushbutton reset debounce input for μP reset generation
  • Two programmable time-of-day alarms
  • Programmable square-wave output signal
  • Simple serial I²C interface connects to most microcontrollers (400 kHz fast mode)
  • Battery-backup input for continuous timekeeping; low power operation extends battery life to 3.3 V
  • Underwriters Laboratories® (UL) recognized

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Quality Confirmation

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Frequently Asked Questions

Is DS3231SN#T&R available from LimChip?

LimChip can confirm current availability, price, quantity, date code and lead time for DS3231SN#T&R by RFQ.

What should buyers check before ordering DS3231SN#T&R?

Buyers should check frequency range, package, RF performance, suffix and lifecycle status for DS3231SN#T&R, together with live stock and traceable supply.

How do I request a quote for DS3231SN#T&R?

Use the RFQ button and include required quantity, target date code, package/case requirement, delivery country, company name and contact details.