DS3231M RTC: Pinout, Application, Circuit

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Published: 16 August 2021 | Last Updated: 16 August 2021

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DS3231M

DS3231M

Maxim Integrated

16 Terminations 3.3V 16 Pin DS3231 Real Time Clocks 0.4MHz

Purchase Guide

16 Terminations 3.3V 16 Pin DS3231 Real Time Clocks 0.4MHz

The DS3231M is a low-cost, extremely accurate, I2C real-time clock (RTC).

In this video I will show you how to use DS3231 RTC module. It will explain how to connect it to I2C bus.

How to use DS3231 RTC module , connect it to I2C bus and build cool looking OLED clock

DS3231M Pinout

DS3231M Pinout.jpg

DS3231M CAD Model

Symbol

DS3231MSymbol.jpg

Footprint

DS3231M Footprint.jpg

3D Model

DS3231M 3D Model.jpg


DS3231M Description

The DS3231M is a low-cost, extremely accurate, I2C real-time clock (RTC). The device incorporates a battery input and maintains accurate timekeeping when the main power to the device is interrupted. It is available in the same footprint as the popular DS3231 RTC.


DS3231M Features

●Highly Accurate RTC With Integrated MEMS Resonator Completely Manages All Timekeeping Functions

• Complete Clock Calendar Functionality Including Seconds, Minutes, Hours, Day, Date, Month, and Year, with Leap-Year Compensation Up to the Year 2100

• Timekeeping Accuracy ±5ppm (±0.432 Second/Day) from -45°C to +85°C

• Footprint and Functionally Compatible to DS3231

• Two Time-of-Day Alarms

• 1Hz and 32.768kHz Outputs

• Reset Output and Pushbutton Input with Debounce

• Digital Temp Sensor with ±3°C Accuracy

• +2.3V to +5.5V Supply Voltage

● 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

● Operating Temperature Range: -40°C to +85°C

● 8-Pin or 16-Pin SO Packages

● Underwriters Laboratories® (UL) Recognized


DS3231M Block Diagram

The DS3231M is a serial real-time clock (RTC) driven by an internal, temperature-compensated, micro-electromechanical systems (MEMS) resonator. The Block Diagram shows the device's main elements given below.

DS3231M Block Diagram.jpg


Specifications

Maxim Integrated DS3231M technical specifications, attributes, parameters and parts with similar specifications to Maxim Integrated DS3231M .
  • Type
    Parameter
  • Factory Lead Time
    6 Weeks
  • Mount

    In electronic components, the term "Mount" typically refers to the method or process of physically attaching or fixing a component onto a circuit board or other electronic device. This can involve soldering, adhesive bonding, or other techniques to secure the component in place. The mounting process is crucial for ensuring proper electrical connections and mechanical stability within the electronic system. Different components may have specific mounting requirements based on their size, shape, and function, and manufacturers provide guidelines for proper mounting procedures to ensure optimal performance and reliability of the electronic device.

    Surface Mount
  • Mounting Type

    The "Mounting Type" in electronic components refers to the method used to attach or connect a component to a circuit board or other substrate, such as through-hole, surface-mount, or panel mount.

    Surface Mount
  • Package / Case

    refers to the protective housing that encases an electronic component, providing mechanical support, electrical connections, and thermal management.

    16-SOIC (0.295, 7.50mm Width)
  • Number of Pins
    16
  • Operating Temperature

    The operating temperature is the range of ambient temperature within which a power supply, or any other electrical equipment, operate in. This ranges from a minimum operating temperature, to a peak or maximum operating temperature, outside which, the power supply may fail.

    -40°C~85°C
  • Packaging

    Semiconductor package is a carrier / shell used to contain and cover one or more semiconductor components or integrated circuits. The material of the shell can be metal, plastic, glass or ceramic.

    Tube
  • Published
    2010
  • Pbfree Code

    The "Pbfree Code" parameter in electronic components refers to the code or marking used to indicate that the component is lead-free. Lead (Pb) is a toxic substance that has been widely used in electronic components for many years, but due to environmental concerns, there has been a shift towards lead-free alternatives. The Pbfree Code helps manufacturers and users easily identify components that do not contain lead, ensuring compliance with regulations and promoting environmentally friendly practices. It is important to pay attention to the Pbfree Code when selecting electronic components to ensure they meet the necessary requirements for lead-free applications.

    yes
  • Part Status

    Parts can have many statuses as they progress through the configuration, analysis, review, and approval stages.

    Active
  • Moisture Sensitivity Level (MSL)

    Moisture Sensitivity Level (MSL) is a standardized rating that indicates the susceptibility of electronic components, particularly semiconductors, to moisture-induced damage during storage and the soldering process, defining the allowable exposure time to ambient conditions before they require special handling or baking to prevent failures

    3 (168 Hours)
  • Number of Terminations
    16
  • ECCN Code

    An ECCN (Export Control Classification Number) is an alphanumeric code used by the U.S. Bureau of Industry and Security to identify and categorize electronic components and other dual-use items that may require an export license based on their technical characteristics and potential for military use.

    EAR99
  • Type
    Clock/Calendar
  • HTS Code

    HTS (Harmonized Tariff Schedule) codes are product classification codes between 8-1 digits. The first six digits are an HS code, and the countries of import assign the subsequent digits to provide additional classification. U.S. HTS codes are 1 digits and are administered by the U.S. International Trade Commission.

    8542.39.00.01
  • Voltage - Supply

    Voltage - Supply refers to the range of voltage levels that an electronic component or circuit is designed to operate with. It indicates the minimum and maximum supply voltage that can be applied for the device to function properly. Providing supply voltages outside this range can lead to malfunction, damage, or reduced performance. This parameter is critical for ensuring compatibility between different components in a circuit.

    2.3V~5.5V
  • Terminal Position

    In electronic components, the term "Terminal Position" refers to the physical location of the connection points on the component where external electrical connections can be made. These connection points, known as terminals, are typically used to attach wires, leads, or other components to the main body of the electronic component. The terminal position is important for ensuring proper connectivity and functionality of the component within a circuit. It is often specified in technical datasheets or component specifications to help designers and engineers understand how to properly integrate the component into their circuit designs.

    DUAL
  • Supply Voltage

    Supply voltage refers to the electrical potential difference provided to an electronic component or circuit. It is crucial for the proper operation of devices, as it powers their functions and determines performance characteristics. The supply voltage must be within specified limits to ensure reliability and prevent damage to components. Different electronic devices have specific supply voltage requirements, which can vary widely depending on their design and intended application.

    3.3V
  • Terminal Pitch

    The center distance from one pole to the next.

    1.27mm
  • Base Part Number

    The "Base Part Number" (BPN) in electronic components serves a similar purpose to the "Base Product Number." It refers to the primary identifier for a component that captures the essential characteristics shared by a group of similar components. The BPN provides a fundamental way to reference a family or series of components without specifying all the variations and specific details.

    DS3231
  • Pin Count

    a count of all of the component leads (or pins)

    16
  • Operating Supply Voltage

    The voltage level by which an electrical system is designated and to which certain operating characteristics of the system are related.

    3.3V
  • Interface

    In electronic components, the term "Interface" refers to the point at which two different systems, devices, or components connect and interact with each other. It can involve physical connections such as ports, connectors, or cables, as well as communication protocols and standards that facilitate the exchange of data or signals between the connected entities. The interface serves as a bridge that enables seamless communication and interoperability between different parts of a system or between different systems altogether. Designing a reliable and efficient interface is crucial in ensuring proper functionality and performance of electronic components and systems.

    I2C, 2-Wire Serial
  • Clock Frequency

    Clock frequency, also known as clock speed, refers to the rate at which a processor or electronic component can execute instructions. It is measured in hertz (Hz) and represents the number of cycles per second that the component can perform. A higher clock frequency typically indicates a faster processing speed and better performance. However, it is important to note that other factors such as architecture, efficiency, and workload also play a significant role in determining the overall performance of a component. In summary, clock frequency is a crucial parameter that influences the speed and efficiency of electronic components in processing data and executing tasks.

    0.4MHz
  • Logic Function

    In electronic components, the term "Logic Function" refers to the specific operation or behavior of a component based on its input signals. It describes how the component processes the input signals to produce the desired output. Logic functions are fundamental to digital circuits and are used to perform logical operations such as AND, OR, NOT, and XOR.Each electronic component, such as logic gates or flip-flops, is designed to perform a specific logic function based on its internal circuitry. By understanding the logic function of a component, engineers can design and analyze complex digital systems to ensure proper functionality and performance. Different logic functions can be combined to create more complex operations, allowing for the creation of sophisticated digital devices and systems.

    Clock
  • Number of Timers
    1
  • Time Format

    Time is based on a 24 hour system. This is frequently referred to as "military time". The 24 hour system is the default format.

    HH:MM:SS (12/24 hr)
  • Date Format

    The international standard recommends writing the date as year, then month, then the day:?YYYY-MM-DD.

    YY-MM-DD-dd
  • Current - Timekeeping (Max)

    The parameter "Current - Timekeeping (Max)" in electronic components refers to the maximum current that a device can draw while performing timekeeping functions. Timekeeping functions typically involve maintaining accurate time and date information within a device, such as in a real-time clock (RTC) or a microcontroller with a built-in clock. The maximum current specified for timekeeping is important for determining the power consumption of the device when it is in standby or low-power modes, as excessive current draw can drain the battery quickly. Designers need to consider this parameter when selecting components for battery-powered devices to ensure efficient power management and longer battery life.

    130μA~200μA @ 3.63V~5.5V
  • Time-Min

    Time-Min is a parameter in electronic components that refers to the minimum amount of time required for a specific operation or function to be completed. This parameter is crucial in determining the speed and efficiency of the component's performance. It is often specified in datasheets and technical documentation to provide users with information on the component's timing characteristics. Understanding the "Time-Min" parameter is essential for designing and integrating electronic components into circuits to ensure proper functionality and timing synchronization.

    SECONDS
  • Interrupt Capability

    Returns the number of interrupts available for a specified hardware device and interrupt type.

    Y
  • Voltage - Supply, Battery

    Voltage - Supply, Battery refers to the nominal voltage level provided by a battery to power electronic components or circuits. It indicates the standard voltage output that a battery can deliver under typical operating conditions. This parameter is crucial for ensuring compatibility between the battery and the electronic device, as it affects performance and functionality. The voltage supply rating helps in selecting the appropriate battery for specific applications, ensuring that the device operates efficiently and safely.

    2.3V~5.5V
  • Volatile

    In the context of electronic components, the term "Volatile" refers to a type of memory or storage that requires power to maintain the stored data. When power is removed or lost, the data stored in volatile memory is also lost. This is in contrast to non-volatile memory, which retains data even when power is turned off.Volatile memory is commonly used in devices like RAM (Random Access Memory) in computers, where data needs to be quickly accessed and modified. However, it is not suitable for long-term storage of important data as it requires continuous power supply to retain information.Overall, the volatile nature of this type of memory makes it fast and efficient for temporary data storage and processing, but it is not ideal for permanent data storage due to its dependency on power supply.

    NO
  • Information Access Method

    Information Access Method refers to the techniques and protocols used to retrieve, manage, and manipulate data stored in electronic systems. It encompasses various approaches such as direct memory access, polling, interrupts, and data buses, enabling efficient communication between different components within a system. This method is crucial for optimizing data retrieval speed and ensuring effective interaction between hardware and software in electronic devices.

    I2C
  • Features

    In the context of electronic components, the term "Features" typically refers to the specific characteristics or functionalities that a particular component offers. These features can vary depending on the type of component and its intended use. For example, a microcontroller may have features such as built-in memory, analog-to-digital converters, and communication interfaces like UART or SPI.When evaluating electronic components, understanding their features is crucial in determining whether they meet the requirements of a particular project or application. Engineers and designers often look at features such as operating voltage, speed, power consumption, and communication protocols to ensure compatibility and optimal performance.In summary, the "Features" parameter in electronic components describes the unique attributes and capabilities that differentiate one component from another, helping users make informed decisions when selecting components for their electronic designs.

    Alarm, Leap Year, Square Wave Output
  • Length
    10.3mm
  • Height Seated (Max)

    Height Seated (Max) is a parameter in electronic components that refers to the maximum allowable height of the component when it is properly seated or installed on a circuit board or within an enclosure. This specification is crucial for ensuring proper fit and alignment within the overall system design. Exceeding the maximum seated height can lead to mechanical interference, electrical shorts, or other issues that may impact the performance and reliability of the electronic device. Manufacturers provide this information to help designers and engineers select components that will fit within the designated space and function correctly in the intended application.

    2.65mm
  • Width
    7.5mm
  • Radiation Hardening

    Radiation hardening is the process of making electronic components and circuits resistant to damage or malfunction caused by high levels of ionizing radiation, especially for environments in outer space (especially beyond the low Earth orbit), around nuclear reactors and particle accelerators, or during nuclear accidents or nuclear warfare.

    No
  • RoHS Status

    RoHS means “Restriction of Certain Hazardous Substances” in the “Hazardous Substances Directive” in electrical and electronic equipment.

    ROHS3 Compliant
0 Similar Products Remaining

DS3231M Application

  • Power Meters

  • Industrial Applications


DS3231M Typical Operating Circuit

Typical Operating Circuit.jpg

DS3231M Manufacturer

Popularity by Region

Frequently Asked Questions

What package is DS3231M available in?

It is available in 8-pin or 16-pin SO packages.

Does DS3231M have a temperature sensor?

The DS3231M RTC has a built-in alarm function as well as a temperature sensor with a resolution of 0.25 and an accuracy of ±3°C which makes this project easier.

How do I set the date and time in RTC DS3231?

Simple Guide to Setting Time on a DS3231/DS3107/DS1337 Real Time Clock With Arduino UNO
Step 1: Parts. You'll need only
Step 2: Connect RTC to Arduino. Place the coin-cell battery in the RTC.
Step 3: Download the Arduino Library and Run the SetTime Sketch. 
3 People Made This Project! ...
9 Comments.
DS3231M

Maxim Integrated

In Stock: 10006

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