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Name: DS1689SN
Brand: Analog Devices Inc./Maxim Integrated
SKU: DS1689SN
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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Analog Devices Inc./Maxim Integrated DS1689SN

Part No.:: DS1689SN

Manufacturer:: Analog Devices Inc./Maxim Integrated

Package:: 28-SOIC (0.337, 8.56mm Width)

Datasheet:: DS1689SN.pdf

Description:: IC RTC CLK/CALENDAR PAR 28-SOIC

In Stock:: 2741

Quantity:: Add To Cart

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DS1689SN Specifications

Package/Case:
28-SOIC (0.337, 8.56mm Width)
Packaging:
Tube
Series:
-
ProductStatus:
Obsolete
Type:
Clock/Calendar
Features:
NVSRAM
MemorySize:
114B
TimeFormat:
HH:MM:SS (12/24 hr)
DateFormat:
YY-MM-DD-dd
Interface:
Parallel
Voltage-Supply:
2.7V ~ 3.3V, 4.5V ~ 5.5V
Voltage-SupplyBattery:
2.5V ~ 3.7V
Current-Timekeeping(Max):
2mA @ 3V, 3mA @ 5V
OperatingTemperature:
-40°C ~ 85°C
MountingType:
Surface Mount

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DS1689SN information

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Basic introduction and simple engineering application of DS1689SN

DS1689SN is a real-time clock (RTC) chip manufactured by Maxim Integrated, offering accurate timekeeping and versatile functionality for various applications. It is commonly used in embedded systems, consumer electronics, and industrial equipment where precise timekeeping is essential.

Introduction:

The DS1689SN RTC chip integrates a real-time clock/calendar, alarm functions, and non-volatile memory in a compact package. It communicates with the host microcontroller via a simple serial interface, making it easy to interface with a wide range of microcontrollers.

Application Scenario:

In a simple project, DS1689SN can be utilized to add real-time clock functionality to a microcontroller-based system. Let's consider a scenario where you want to design a digital clock with alarm capabilities using DS1689SN.

Experiment Setup:

To implement a digital clock with alarm using DS1689SN, follow these steps:

1. Hardware Connection:

Connect DS1689SN to your microcontroller using the I2C or SPI interface. Ensure proper connection of power supply, ground, and communication lines.

2. Initialization:

Write initialization code in your microcontroller firmware to configure DS1689SN settings such as time format, alarm settings, and clock frequency. Initialize communication with the chip using the specified protocol.

3. Timekeeping:

Implement functions to read and update the current time from DS1689SN. Use the RTC registers to store and retrieve time information accurately.

4. Display:

Connect a display module, such as an LCD or LED display, to your microcontroller. Write code to display the current time retrieved from DS1689SN on the display.

5. Alarm Functionality:

Implement alarm functionality using DS1689SN. Set the desired alarm time and configure the alarm trigger conditions. When the alarm triggers, generate an interrupt or activate an alarm output to notify the user.

6. User Interaction:

Integrate user interface elements, such as buttons or a touchscreen, to set the alarm time and control other clock functions. Write code to handle user input and update DS1689SN settings accordingly.

Considerations:

When working with DS1689SN, consider the following:

- Power Supply: Ensure stable power supply to DS1689SN to maintain accurate timekeeping.

- Communication Protocol: Choose the appropriate communication protocol (I2C/SPI) and configure it correctly in your firmware.

- Error Handling: Implement error handling routines in your firmware to handle communication errors or RTC malfunctions gracefully.

- Backup Power: If required, provide backup power to DS1689SN to preserve timekeeping data during power outages.

- Testing and Calibration: Test the functionality of your digital clock thoroughly and calibrate DS1689SN if necessary to ensure accurate timekeeping.

DS1689SN FAQ

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3. Are the DS1689SN price and inventory displayed accurate?

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6. What is the process for return or replacement of DS1689SN?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the DS1689SN we delivered, we will accept the replacement or return of the DS1689SN only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of DS1689SN.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations