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 |Maxim Integrated/analog Devices DS3231SN#

DS3231SN# – High-Accuracy I2C RTC Module with Alarm – Analog Devices

Ensure precise timekeeping in your embedded systems with the DS3231SN# Real-Time Clock (RTC) from Analog Devices. This industry-leading IC delivers exceptional accuracy (±2ppm from 0°C to +40°C) through its integrated temperature-compensated crystal oscillator (TCXO), making it ideal for applications requiring reliable timestamping and scheduling. PCX supplies genuine Analog Devices components with guaranteed quality and same-day shipping.

Key Features

• Ultra-High Accuracy: Integrated TCXO maintains ±2ppm precision
• Wide Voltage Range: 2.3V to 5.5V operation with battery backup support
• Low Power Consumption: Only 110µA–170µA timekeeping current
• I2C Serial Interface: Simple 2-wire communication
• Advanced Functions: Programmable alarms, square wave output, leap year compensation
• Industrial Temperature Range: -40°C to +85°C operation

Technical Specifications

• Manufacturer: Analog Devices Inc./Maxim Integrated
• Type: Clock/Calendar with Alarm
• Time Format: HH:MM:SS (12/24 hour)
• Date Format: YY-MM-DD-dd (year-month-date-day)
• Interface: I2C, 2-Wire Serial
• Package: 16-SOIC (7.50mm Width)
• Compliance: RoHS Compliant

Typical Applications

• Industrial automation controllers
• Medical monitoring devices
• Data loggers and metering systems
• POS terminals and kiosks
• IoT edge devices

About Analog Devices

Analog Devices (ADI) is a global leader in high-performance semiconductor solutions, renowned for pushing boundaries in signal processing and precision timing technologies. Their acquisition of Maxim Integrated further strengthened their portfolio in embedded systems and power management.

With over 50 years of innovation, ADI components are trusted in mission-critical applications across aerospace, healthcare, and industrial sectors. The DS3231 exemplifies their commitment to engineering excellence, featuring patented temperature compensation that outperforms standard crystal-based RTCs.

About Real-Time Clocks (RTC)

Real-Time Clocks are essential integrated circuits that maintain accurate time and calendar functions independently of a system’s main processor. They provide critical timestamping capabilities during power loss through battery backup support.

Modern RTCs like the DS3231 go beyond basic timekeeping with integrated oscillators, alarm functions, and digital interfaces. These features enable event scheduling, system wake-up routines, and data synchronization in embedded designs – crucial for applications requiring autonomous operation or compliance with time-sensitive protocols.

Packaging Options

Available in manufacturer tube packaging. Contact PCX sales for bulk requirements.

Frequently Asked Questions

Q: How does the TCXO improve accuracy compared to standard RTCs?
A: The integrated Temperature-Compensated Crystal Oscillator dynamically adjusts for thermal drift, maintaining ±2ppm accuracy versus ±20ppm in basic crystal RTCs.

Q: Does this module require an external crystal?
A: No – the DS3231SN# includes a factory-calibrated internal oscillator, eliminating external crystal components.

Q: What battery voltage is supported for backup power?
A: The IC supports battery inputs from 2.3V to 5.5V, compatible with most coin cell and supercapacitor configurations.

Q: Can I generate interrupts with this RTC?
A: Yes – both alarm functions and the programmable square wave output can trigger microcontroller interrupts.

Q: Is the century information handled automatically?
A: Yes – leap year compensation is built-in through 2100, with automatic century rollover.

Q: How do I access the complete technical documentation?
A: Download the full DS3231SN# datasheet from PCXCo.com.

Product image is representational. Refer to datasheet for exact dimensions.

Order Today for Reliable Timekeeping!

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