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Name: DS12885Q
Brand: Analog Devices Inc./Maxim Integrated
SKU: DS12885Q
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 DS12885Q

Part No.:: DS12885Q

Manufacturer:: Analog Devices Inc./Maxim Integrated

Package:: 28-LCC (J-Lead)

Datasheet:: DS12885Q.pdf

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

In Stock:: 2863

Quantity:: Add To Cart

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DS12885Q Specifications

Package/Case:
28-LCC (J-Lead)
Packaging:
Tube,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 ~ 4V
Current-Timekeeping(Max):
15mA @ 4.5V ~ 5.5V
OperatingTemperature:
0°C ~ 70°C
MountingType:
Surface Mount

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DS12885Q information

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Basic introduction and simple engineering application of DS12885Q

DS12885Q is a real-time clock (RTC) chip manufactured by Maxim Integrated. It is commonly used in electronic projects requiring precise timekeeping functionality, such as data loggers, alarm systems, and embedded devices.

Application Scenario:

In a home automation project, DS12885Q can be utilized to timestamp events, schedule tasks, and maintain accurate time for synchronized operation of various smart home devices.

Circuit Design:

To integrate DS12885Q into a home automation project, follow these steps:

1. RTC Module Connection:

Connect DS12885Q to the microcontroller board, such as Arduino or Raspberry Pi, using the I2C or SPI communication interface. Ensure proper wiring and pull-up resistors are used for reliable communication.

2. Time Initialization:

Initialize the RTC module by setting the current date and time using the microcontroller. This can be done by sending the appropriate commands or using dedicated libraries provided by the manufacturer or the community.

3. Event Logging:

Log events or trigger actions based on specific times or intervals. Utilize the RTC's alarm functionality to trigger interrupts or callbacks in the microcontroller code, allowing for timely execution of tasks.

4. Display Interface:

Integrate a display module, such as an LCD or OLED screen, to visualize the current date, time, and scheduled events. Utilize the microcontroller's GPIO pins to control the display and update information retrieved from DS12885Q.

5. Power Backup:

Ensure continuous operation and timekeeping accuracy by providing a backup power source, such as a coin cell battery, to DS12885Q. This ensures that the RTC maintains correct time even during power outages or when the main power source is disconnected.

Considerations:

When designing the circuit and firmware, consider the following aspects:

- Time Accuracy: Calibrate the RTC module periodically to maintain accurate timekeeping, accounting for drift and temperature variations.

- Power Consumption: Optimize power usage to prolong battery life in battery-powered applications, implementing sleep modes or power-saving techniques when possible.

- Error Handling: Implement error detection and correction mechanisms in the firmware to handle communication errors or RTC malfunctions gracefully.

- User Interface: Design a user-friendly interface to set time, view schedules, and configure alarms, enhancing the usability of the home automation system.

- Data Integrity: Ensure data integrity by implementing backup mechanisms or error-checking algorithms to prevent data loss or corruption in the event of power failure or communication errors.

DS12885Q FAQ

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3. Are the DS12885Q price and inventory displayed accurate?

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6. What is the process for return or replacement of DS12885Q?

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 DS12885Q we delivered, we will accept the replacement or return of the DS12885Q 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 DS12885Q.

(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