DS3231SN - SMD -SOP-16 IC Real Time Clock Integrated RTC/TCXO/Crystal [Original]

DS3231SN SMD SOP-16 Real Time Clock IC with Integrated TCXO & Crystal

The DS3231SN is an I2C Real-Time Clock (RTC) integrated circuit. It integrates a temperature-compensated crystal oscillator (TCXO) and crystal. The device is supplied in an SMD SOP-16 package. It maintains timekeeping during main power interruptions using a battery input. The RTC tracks seconds, minutes, hours, day, date, month, and year, including automatic leap-year adjustments. It supports 24-hour and 12-hour formats with an AM/PM indicator. Two programmable time-of-day alarms and a square-wave output are present. Communication occurs via a 400kHz I2C bidirectional bus. Power-fail detection and automatic backup supply switching are integrated.

Specifications:

• Package/Case: SOIC-16 (SOP-16)
• Mounting Type: SMD/SMT
• Product Series: DS3231
• Accuracy: ±2ppm (0°C to +40°C), ±3.5ppm (-40°C to +85°C)
• Interface: I2C (400kHz)
• Operating Voltage: 3.3V
• Operating Temperature Range: 0°C to +70°C (Commercial), -40°C to +85°C (Industrial)
• Timekeeping Functions: Seconds, Minutes, Hours, Day, Date, Month, Year
• Alarms: Two Time-of-Day Alarms
• Output: Programmable Square-Wave Output

Key features and benefits:

• Real-Time Clock (RTC) with integrated TCXO and crystal.
• Timekeeping functions: seconds, minutes, hours, day, date, month, year; automatic leap-year compensation up to 2100.
• Accuracy: ±2ppm (0°C to +40°C), ±3.5ppm (-40°C to +85°C).
• 400kHz I2C serial interface.
• Battery-backup input for timekeeping during main power interruptions.
• Two programmable time-of-day alarms.
• Programmable square-wave output.
• Integrated digital temperature sensor with ±3°C accuracy.

Applications:

• Data logging systems.
• Embedded systems for industrial control and automation.
• GPS devices and navigation systems.
• Smart home devices and IoT applications.
• Battery-powered portable electronics.

Frequently Asked Questions:

Q: What is the accuracy specification for the DS3231SN RTC?
A: The DS3231SN has an accuracy of ±2ppm from 0°C to +40°C and ±3.5ppm from -40°C to +85°C.

Q: What communication interface does the DS3231SN use?
A: The DS3231SN utilizes a 400kHz I2C serial interface.

Q: Does the DS3231SN support battery backup for timekeeping?
A: Yes, the DS3231SN includes a battery-backup input to maintain timekeeping during main power interruptions.

Q: What is the operating voltage for the DS3231SN?
A: The DS3231SN operates at 3.3V.

Package Includes:

*Image shown is a representation only.

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