DS1672 Binary Counter RTC: Pinout, Features and Datasheet
DS1672 Real Time Clocks
The DS1672 incorporates a 32-bit counter and power-monitoring functions. The 32-bit counter is designed to count seconds and can be used to derive time-of-day, week, month, and year by using a software algorithm. Furthermore, Huge range of Semiconductors, Capacitors, Resistors and IcS in stock. Welcome RFQ.

Binary counter
DS1672 Pinout
The following figure is the diagram of DS1672 Pinout.

Pinout
DS1672 CAD Model
The followings are DS1672 Symbol, Footprint, and 3D Model.

Symbol

Footprint

3D Model
DS1672 Description
The DS1672 incorporates a 32-bit counter and power-monitoring functions. The 32-bit counter is designed to count seconds and can be used to derive time-of-day, week, month, and year by using a software algorithm. A precision, temperature-compensated reference and comparator circuit monitors the status of Vcc. When an out-of-tolerance condition occurs, an internal power-fail signal is generated that forces the reset to the active state. When Vcc returns to an in-tolerance condition, the reset signal is kept in the active state for a period of time to allow the power supply and processor to stabilize.
The DS1672 provides a 32-bit counter that increments once-per-second. The counter data is accessible via an I²C serial interface. A precision, temperature-compensated, voltage reference and comparator circuit monitors Vcc. The DS1672 operates as a slave device on the I²C bus. Access is obtained by implementing a START condition and providing a device identification code followed by a register address. Subsequent registers can be accessed sequentially until a STOP condition is executed.
This article provides you with a basic overview of the DS1672 Binary Counter RTC, including its pin descriptions, features and specifications, etc., to help you quickly understand what DS1672 is.
DS1672 Features
● 32-Bit Counter
● I²C Serial Interface
● Automatic Power-Fail Detect and Switch Circuitry
● Power-Fail Reset Output
● Low-Voltage Oscillator Operation (1.3V min)
● Trickle-Charge Capability
● Underwriters Laboratories (UL) Recognized
● -40°C to +85°C Operating Range
Specifications
- TypeParameter
- Factory Lead Time9 Weeks
- 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.
8-SOIC (0.154, 3.90mm Width) - Supplier Device Package
The parameter "Supplier Device Package" in electronic components refers to the physical packaging or housing of the component as provided by the supplier. It specifies the form factor, dimensions, and layout of the component, which are crucial for compatibility and integration into electronic circuits and systems. The supplier device package information typically includes details such as the package type (e.g., DIP, SOP, QFN), number of pins, pitch, and overall size, allowing engineers and designers to select the appropriate component for their specific application requirements. Understanding the supplier device package is essential for proper component selection, placement, and soldering during the manufacturing process to ensure optimal performance and reliability of the electronic system.
8-SO - 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.
Tape & Reel (TR) - Published2002
- 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
1 (Unlimited) - TypeBinary Counter
- 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.
2.7V~3.3V - 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.
DS1672 - 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 - 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.
Binary - Date Format
The international standard recommends writing the date as year, then month, then the day:?YYYY-MM-DD.
Binary - 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.
500μA @ 3.3V - 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.
1.3V~3.63V - 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.
Trickle-Charger - RoHS Status
RoHS means “Restriction of Certain Hazardous Substances” in the “Hazardous Substances Directive” in electrical and electronic equipment.
ROHS3 Compliant - Lead Free
Lead Free is a term used to describe electronic components that do not contain lead as part of their composition. Lead is a toxic material that can have harmful effects on human health and the environment, so the electronics industry has been moving towards lead-free components to reduce these risks. Lead-free components are typically made using alternative materials such as silver, copper, and tin. Manufacturers must comply with regulations such as the Restriction of Hazardous Substances (RoHS) directive to ensure that their products are lead-free and environmentally friendly.
Lead Free
DS1672 Functional Block Diagram
The following is the Block Diagram of DS1672.

Block Diagram
DS1672 Typical Operating Circuit
The following diagram shows the DS1672 Typical Operating Circuit.

Typical Operating Circuit
Parts with Similar Specs
- ImagePart NumberManufacturerPackage / CaseInterfaceOperating TemperatureMoisture Sensitivity Level (MSL)Mounting TypePart StatusRoHS StatusView Compare
DS1672S-3 T&R
8-SOIC (0.154, 3.90mm Width)
I2C, 2-Wire Serial
-40°C ~ 85°C
1 (Unlimited)
Surface Mount
Active
ROHS3 Compliant
8-SOIC (0.154, 3.90mm Width)
I2C, 2-Wire Serial
-40°C ~ 85°C
1 (Unlimited)
Surface Mount
Active
ROHS3 Compliant
8-SOIC (0.154, 3.90mm Width)
I2C, 2-Wire Serial
-40°C ~ 85°C
1 (Unlimited)
Surface Mount
Active
ROHS3 Compliant
8-SOIC (0.154, 3.90mm Width)
I2C, 2-Wire Serial
-40°C ~ 85°C
1 (Unlimited)
Surface Mount
Active
ROHS3 Compliant
8-SOIC (0.154, 3.90mm Width)
I2C, 2-Wire Serial
-40°C ~ 85°C
1 (Unlimited)
Surface Mount
Active
ROHS3 Compliant
DS1672 Manufacturer
The market is evolving. The rules are changing. To keep your time to market short, you need integration at every level—from silicon to the supply chain. Count on Maxim Integrated to help you overcome design and architectural challenges, with integrated solutions for the industrial, medical, consumer, automotive, energy, computing, and communications realms. Maxim Integrated is also your source for power, interface, and even digital products that work in the analog world. And they're glad to support you with reference designs, tools, technical documents, packaging, and more. We invite you to explore their latest analog integration offerings.
Datasheet PDF
- Datasheets :
- Application Notes :
- Environmental Information :
- Other Related Documents :
- ConflictMineralStatement :
How many pins of DS1672S-3+T&R?
8 Pins.
What’s the operating temperature of DS1672S-3+T&R?
-40°C~85°C.
What is the essential property of the DS1672?
The DS1672 incorporates a 32-bit counter and power-monitoring functions. The 32-bit counter is designed to count seconds and can be used to derive time-of-day, week, month, and year by using a software algorithm.
What kind of crystal does DS1672 use?
The DS1672 uses an external 32.768kHz crystal. The oscillator circuit does not require any external resistors or capacitors to operate. If using a crystal with the specified characteristics, the startup time is usually less than one second.
Does DS1672 support bidirectional I²C bus and data transfer protocol?
The DS1672 supports a bidirectional I²C bus and data transmission protocol.
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