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Name: DS1742W-120+
Brand: Analog Devices Inc./Maxim Integrated
SKU: DS1742W-120+
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 DS1742W-120+

Part No.:: DS1742W-120+

Manufacturer:: Analog Devices Inc./Maxim Integrated

Package:: 24-DIP Module (0.600, 15.24mm)

Datasheet:: DS1742W-120+.pdf

Description:: IC RTC CLK/CALENDAR PAR 24-EDIP

In Stock:: 2012

Quantity:: Add To Cart

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DS1742W-120+ Specifications

Package/Case:
24-DIP Module (0.600, 15.24mm)
Packaging:
Tube
Series:
-
ProductStatus:
Obsolete
Type:
Clock/Calendar
Features:
Leap Year, NVSRAM, Y2K
MemorySize:
2KB
TimeFormat:
HH:MM:SS (24 hr)
DateFormat:
YY-MM-DD-dd
Interface:
Parallel
Voltage-Supply:
2.97V ~ 3.63V
Voltage-SupplyBattery:
-
Current-Timekeeping(Max):
2mA @ 3.3V
OperatingTemperature:
0°C ~ 70°C
MountingType:
Through Hole

DS1742W-120+ this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including DS1742W-120+ price, data-sheet, in-stock availability, technical difficulties. Also. Quickly Enter the access of compare listing to find out replaceable electronic parts. If you want to retrieve comprehensive data for DS1742W-120+ to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.

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DS1742W-120+ information

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Basic introduction and simple engineering application of DS1742W-120+

DS1742W-120+ is a real-time clock (RTC) IC manufactured by Maxim Integrated, featuring a non-volatile NVSRAM and a battery backup to maintain timekeeping functionality even during power loss.

Basic Introduction:

The DS1742W-120+ integrates a 32.768 kHz crystal oscillator, a clock/calendar, and 2K x 8 NVSRAM into a compact package. It communicates with the host microcontroller via a simple serial interface, making it easy to incorporate into various projects requiring accurate timekeeping.

Application in Simple Projects:

In a simple project like a digital clock, the DS1742W-120+ can be utilized to keep track of time, while a microcontroller controls the display and user interface. Let's outline the steps to create a basic digital clock using this RTC IC:

1. Hardware Setup:

Connect the DS1742W-120+ to the microcontroller using the serial interface (SPI or I2C) and provide a backup battery to maintain timekeeping during power loss.

2. Initialization:

Configure the microcontroller to communicate with the DS1742W-120+ and initialize the RTC's clock and calendar registers.

3. Timekeeping:

Read the current time from the DS1742W-120+ at regular intervals and update the display accordingly. Implement logic to handle time adjustments, such as daylight saving time changes.

4. User Interface:

Design a user interface to interact with the digital clock, allowing users to set the time, alarm, or other functionalities.

5. Alarm Functionality:

Utilize the alarm features of the DS1742W-120+ to trigger events at specific times, such as sounding a buzzer or activating a display message.

Experiment Steps:

To experiment with the DS1742W-120+ and understand its functionality better, follow these steps:

1. Connection: Wire the DS1742W-120+ to a microcontroller development board using the recommended serial interface.

2. Initialization: Write code to initialize the RTC IC and set the current time.

3. Time Reading: Read the current time from the DS1742W-120+ and display it on a serial monitor or an external display.

4. Alarm Setup: Configure an alarm time on the DS1742W-120+ and implement logic to trigger an action when the alarm goes off.

5. Power Cycling Test: Simulate power loss by disconnecting the main power source and observe if the RTC continues to maintain accurate time using the backup battery.

Considerations:

When working with the DS1742W-120+, consider factors like power consumption, backup battery life, and communication protocol compatibility to ensure optimal performance in your project.

DS1742W-120+ FAQ

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6. What is the process for return or replacement of DS1742W-120+?

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 DS1742W-120+ we delivered, we will accept the replacement or return of the DS1742W-120+ 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 DS1742W-120+.

(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