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Name: DS14285QN
Brand: Analog Devices Inc./Maxim Integrated
SKU: DS14285QN
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 DS14285QN

Part No.:: DS14285QN

Manufacturer:: Analog Devices Inc./Maxim Integrated

Package:: 28-LCC (J-Lead)

Datasheet:: DS14285QN.pdf

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

In Stock:: 2051

Quantity:: Add To Cart

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DS14285QN Specifications

Package/Case:
28-LCC (J-Lead)
Packaging:
Tube
Series:
-
ProductStatus:
Obsolete
Type:
Clock/Calendar
Features:
Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output
MemorySize:
114B
TimeFormat:
HH:MM:SS (12/24 hr)
DateFormat:
YY-MM-DD-dd
Interface:
Parallel
Voltage-Supply:
4.5V ~ 5.5V
Voltage-SupplyBattery:
2.5V ~ 3.6V
Current-Timekeeping(Max):
0.5µA @ 4.5V ~ 5.5V
OperatingTemperature:
-40°C ~ 85°C
MountingType:
Surface Mount

DS14285QN this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including DS14285QN 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 DS14285QN 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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DS14285QN information

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Basic introduction and simple engineering application of DS14285QN

DS14285QN is a real-time clock (RTC) chip manufactured by Maxim Integrated, offering accurate timekeeping and various timing functions. It is commonly used in electronic devices requiring precise timekeeping, such as digital clocks, data loggers, and embedded systems.

Application Scenario:

In a digital clock project, DS14285QN can serve as the core component for maintaining accurate time and providing functionalities like alarm settings and timestamping of events.

Circuit Design:

To create a digital clock using DS14285QN, follow these steps:

1. Clock Crystal Connection:

Connect a 32.768 kHz crystal oscillator to the X1 and X2 pins of DS14285QN to provide the clock signal for precise timekeeping.

2. Power Supply:

Ensure proper power supply connections to the VCC and GND pins of DS14285QN to provide the necessary operating voltage and ground reference.

3. User Interface:

Integrate a user interface, such as a 7-segment LED display or an LCD screen, to display the current time. Utilize GPIO pins, like pin D0 to D7, to interface with the display components.

4. Button Inputs:

Connect buttons or switches to the GPIO pins of DS14285QN to allow user interaction for setting the time, alarms, or other functionalities.

5. Alarm Functionality:

Configure the alarm settings of DS14285QN using its control registers. Utilize GPIO pins or an external interrupt to trigger alarm events.

Experiment Steps:

To understand the basic functionalities of DS14285QN and its application in a digital clock, follow these experimental steps:

1. Hardware Setup:

Connect the 32.768 kHz crystal oscillator and power supply to DS14285QN according to the datasheet recommendations. Ensure proper connections to the user interface components and button inputs.

2. Software Initialization:

Write firmware code to initialize DS14285QN and configure its registers for timekeeping and alarm functionalities. Utilize the communication protocol specified in the datasheet, such as I2C.

3. Time Display:

Implement code to read the current time from DS14285QN and display it on the user interface. Update the display periodically to reflect the accurate timekeeping.

4. Alarm Setting:

Write code to allow users to set alarms using the button inputs. Configure the alarm registers of DS14285QN accordingly to trigger the alarm at the specified time.

5. Testing:

Test the digital clock prototype under various conditions to ensure accurate timekeeping and reliable alarm triggering. Verify the functionalities by setting alarms and checking their activation.

Considerations:

When designing the digital clock project with DS14285QN, consider the following aspects:

- Power Supply Stability: Ensure stable power supply voltage to DS14285QN for reliable operation.

- Button Debouncing: Implement debounce algorithms for button inputs to prevent false triggers and ensure accurate user interaction.

- Display Update Frequency: Optimize the firmware to update the display efficiently without consuming excessive resources or causing flickering.

- Alarm Accuracy: Calibrate the alarm settings and test their accuracy to ensure timely triggering without deviations.

- Backup Power Source: Consider adding a backup power source, such as a coin cell battery, to maintain timekeeping functionality during power outages.

DS14285QN FAQ

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6. What is the process for return or replacement of DS14285QN?

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 DS14285QN we delivered, we will accept the replacement or return of the DS14285QN 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 DS14285QN.

(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