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Name: DS1286
Brand: Analog Devices Inc./Maxim Integrated
SKU: DS1286
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 DS1286

Part No.:: DS1286

Manufacturer:: Analog Devices Inc./Maxim Integrated

Package:: 28-DIP Module (0.61, 15.49mm), 23 Leads

Datasheet:: DS1286.pdf

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

In Stock:: 3283

Quantity:: Add To Cart

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DS1286 Specifications

Package/Case:
28-DIP Module (0.61, 15.49mm), 23 Leads
Packaging:
Tube
Series:
-
ProductStatus:
Obsolete
Type:
Clock/Calendar
Features:
Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer
MemorySize:
50B
TimeFormat:
HH:MM:SS:hh (12/24 hr)
DateFormat:
YY-MM-DD-dd
Interface:
Parallel
Voltage-Supply:
4.5V ~ 5.5V
Voltage-SupplyBattery:
2.4V ~ 3.5V
Current-Timekeeping(Max):
7mA @ 5V
OperatingTemperature:
0°C ~ 70°C
MountingType:
Through Hole

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DS1286 information

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Basic introduction and simple engineering application of DS1286

DS1286 is a real-time clock (RTC) chip commonly used in electronic projects and embedded systems to keep track of time and date. It provides accurate timekeeping functionality and can operate on a wide range of voltages, making it suitable for various applications.

Application Scenario:

In a digital clock project, DS1286 can be utilized to display the current time and date on an LCD screen. Additionally, it can be integrated into data logging systems to timestamp events or measurements.

Circuit Design:

To create a digital clock using DS1286, follow these steps:

1. Connection to Microcontroller:

Connect the DS1286 chip to the microcontroller using the Inter-Integrated Circuit (I2C) or Serial Peripheral Interface (SPI) protocol. Ensure proper wiring and configure the microcontroller to communicate with the RTC chip.

2. Crystal Oscillator:

Include a crystal oscillator circuit to provide the clock signal for the DS1286. Choose a crystal with the appropriate frequency for accurate timekeeping, typically 32.768 kHz.

3. Power Supply:

Provide a stable power supply to the DS1286 chip, ensuring that it receives the required voltage levels. Use voltage regulators and decoupling capacitors to filter out noise and ensure reliable operation.

4. LCD Display:

Connect an LCD display to the microcontroller to visualize the time and date obtained from the DS1286. Configure the microcontroller to update the display periodically with the current time and date information.

5. User Interface:

Integrate user interface elements, such as buttons or switches, to set the time and date on the DS1286. Implement firmware routines to handle user input and update the RTC accordingly.

6. Backup Battery:

Include a backup battery to maintain the timekeeping functionality of the DS1286 in case of a power outage. Ensure proper battery management to prolong the battery life and prevent leakage.

Experiment Steps:

1. DS1286 Chip Connection: Wire the DS1286 to the microcontroller according to the datasheet specifications, ensuring proper pin connections for communication.

2. Crystal Oscillator Setup: Connect the crystal oscillator circuit to the DS1286 chip, following the recommended schematic provided in the datasheet.

3. Power Supply Configuration: Provide a stable power source to the DS1286 chip and other components in the circuit. Verify the voltage levels using a multimeter.

4. LCD Display Integration: Connect the LCD display to the microcontroller and verify communication by displaying sample text or graphics.

5. User Interface Implementation: Add buttons or switches to the circuit for user interaction. Write firmware code to handle user input and update the time and date on the DS1286.

6. Backup Battery Installation: Insert a backup battery into the circuit to maintain timekeeping functionality during power loss. Test the system by disconnecting the main power source and verifying that the clock continues to run on battery power.

Considerations:

- Accuracy: Calibrate the clock periodically to ensure accurate timekeeping, considering factors like temperature drift and crystal aging.

- Power Consumption: Optimize the firmware and circuit design to minimize power consumption, especially in battery-powered applications.

- Error Handling: Implement error-checking routines in the firmware to handle communication errors or invalid user inputs gracefully.

- Compatibility: Ensure compatibility between the DS1286 chip and the microcontroller by checking voltage levels, communication protocols, and signal timings.

- Environmental Conditions: Consider the operating environment, such as temperature and humidity, and choose components rated for the appropriate conditions to ensure long-term reliability.

DS1286 FAQ

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3. Are the DS1286 price and inventory displayed accurate?

The price and inventory of DS1286 fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.

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Warm Tips: It may take up to 24 hours for the carriers to display tracking information. Usually, express delivery takes 3-5 days, and registered mail takes 25-60 days.

6. What is the process for return or replacement of DS1286?

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 DS1286 we delivered, we will accept the replacement or return of the DS1286 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 DS1286.

(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