DS3231
Info: : PRODUCTION
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DS3231

Extremely Accurate I²C-Integrated RTC/TCXO/Crystal

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Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 4
1ku List Price Starting From $5.83
Features
  • Highly Accurate RTC Completely Manages All Timekeeping Functions
    • 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
    • Accuracy ±2ppm from 0°C to +40°C
    • Accuracy ±3.5ppm from -40°C to +85°C
    • Digital Temp Sensor Output: ±3°C Accuracy
    • Register for Aging Trim
    • Active-Low RST Output/Pushbutton Reset Debounce Input
    • Two Time-of-Day Alarms
    • Programmable Square-Wave Output Signal
  • Simple Serial Interface Connects to Most Microcontrollers
    • Fast (400kHz) I2C Interface
  • Battery-Backup Input for Continuous Timekeeping
    • Low Power Operation Extends Battery-Backup Run Time
    • 3.3V Operation
  • Operating Temperature Ranges: Commercial (0°C to +70°C) and Industrial (-40°C to +85°C)
  • Underwriters Laboratories® (UL) Recognized
Additional Details
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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 active-low 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 active-low RST pin is monitored as a pushbutton input for generating a µP reset.

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Applications

  • Global Positioning Systems (GPS)
  • Servers
  • Telematics
  • Utility Power Meters
Part Models 4
1ku List Price Starting From $5.83

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
DS3231S#
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DS3231S#T&R
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DS3231SN#
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DS3231SN#T&R
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Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

MAXPMBAE

Maxim Analog Essentials Collection of Peripheral Modules

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MAXPMBAE

Maxim Analog Essentials Collection of Peripheral Modules

Maxim Analog Essentials Collection of Peripheral Modules

Features and Benefits

  • Data Converter, Interface, Clock, Sensor, and Other Modules Included to Address Many Design Needs
  • Plug in Modules Enable Rapid Hardware Prototyping
  • Proven Software Drivers Reduce Development Time
  • FPGA Configuration Files Included to Simplify Design Effort

Product Detail

Maxim Analog Essentials is a collection of peripheral modules which can plug directly into any FPGA/CPU expansion port which follows the Pmod™ standard established by Digilent, Inc. The collection includes modules containing a wide variety of commonly used analog and mixed signal functions. The modules are supported by software which includes FPGA configuration files for three popular FPGA platforms: Avnet LX-9, Digilent Nexys 3 and Avnet ZEDBoard, as well as example programs to exercise and demonstrate each module. While the example programs demonstrate the module’s functionality, they are well partitioned and documented allowing the core routines to be easily cut and pasted into your own programs. The combination of plug-in simplicity and easy software integration allows for quick migration from idea to working prototype.

Tools & Simulations

Tools & Simulations 1

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