Product Summary

The DS3231SN# is a low-cost, extremely accurate I2C realtime clock (RTC) with an integrated temperature-compensated crystal oscillator (TCXO) and crystal. The DS3231SN# 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 DS3231SN# is available in commercial and industrial temperature ranges, and is offered in a 16-pin, 300-mil SO package.

Parametrics

DS3231SN# absolute maximum ratings: (1)Voltage Range on VCC, VBAT, 32kHz, SCL, SDA, RST, INT/SQW Relative to Ground:-0.3V to +6.0V; (2)Operating Temperature Range(noncondensing):-40℃ to +85℃; (3)Junction Temperature:+125℃; (4)Storage Temperature Range:-40℃ to +85℃; (5)Lead Temperature (Soldering, 10s):+260℃/10s.

Features

DS3231SN# features: (1)Accuracy ±2ppm from 0℃ to +40℃; (2)Accuracy ±3.5ppm from -40℃ to +85℃; (3)Battery Backup Input for Continuous Timekeeping; (4)Operating Temperature Ranges: Commercial: 0℃ to +70℃, Industrial: -40℃ to +85℃; (5)Low-Power Consumption; (6)Real-Time Clock Counts Seconds, Minutes, Hours, Day, Date, Month, and Year with Leap Year Compensation Valid Up to 2100; (7)Two Time-of-Day Alarms; (8)Programmable Square-Wave Output; (9)Fast (400kHz) I2C Interface; (10)3.3V Operation; (11)Digital Temp Sensor Output: ±3℃ Accuracy; (12)Register for Aging Trim; (13)RST Output/Pushbutton Reset Debounce Input; (14)Underwriters Laboratories (UL) Recognized.

Diagrams

DS3231SN# block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
DS3231SN#
DS3231SN#
Maxim Integrated Products
Real Time Clock Integrated RTC/TCXO/Crystal
Data Sheet
0-1: $6.04
1-25: $4.06
25-50: $2.94
50-100: $2.90
DS3231SN#T&R
DS3231SN#T&R
Maxim Integrated Products
Real Time Clock Integrated RTC/TCXO/Crystal
Data Sheet
0-609: $3.07
609-1000: $2.28