What is the Additional Feature ?

Name: DS1685E-3
Brand: Analog Devices Inc./Maxim Integrated
SKU: DS1685E-3
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 DS1685E-3

Part No.:: DS1685E-3

Manufacturer:: Analog Devices Inc./Maxim Integrated

Package:: 24-TSSOP (0.173, 4.40mm Width)

Datasheet:: DS1685E-3.pdf

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

In Stock:: 455

Quantity:: Add To Cart

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DS1685E-3 Specifications

Package/Case:
24-TSSOP (0.173, 4.40mm Width)
Packaging:
Tube,Tube
Series:
-
ProductStatus:
Obsolete
Type:
Clock/Calendar
Features:
Alarm, NVSRAM, Square Wave Output, Y2K
MemorySize:
242B
TimeFormat:
HH:MM:SS (12/24 hr)
DateFormat:
YY-MM-DD-dd
Interface:
Parallel
Voltage-Supply:
2.7V ~ 3.7V
Voltage-SupplyBattery:
2.5V ~ 3.7V
Current-Timekeeping(Max):
2mA @ 3V
OperatingTemperature:
0°C ~ 70°C
MountingType:
Surface Mount

DS1685E-3 this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including DS1685E-3 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 DS1685E-3 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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DS1685E-3 information

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Basic introduction and simple engineering application of DS1685E-3

DS1685E-3 is a versatile real-time clock (RTC) chip commonly used in embedded systems for timekeeping and event logging functionalities. It integrates a precision oscillator, calendar, alarm, and watchdog timer features, making it suitable for various applications.

Application Scenario:

In a smart home automation project, DS1685E-3 can be utilized to manage time-sensitive tasks, such as scheduling device operations and logging event timestamps.

Circuit Design:

To incorporate DS1685E-3 into a smart home automation system, follow these steps:

1. RTC Connection:

Connect the DS1685E-3 chip to the microcontroller or system-on-chip (SoC) using the Inter-Integrated Circuit (I2C) communication protocol. Ensure proper pull-up resistors are connected to the SDA and SCL lines for reliable communication.

2. Power Supply:

Provide a stable power supply voltage (typically 3.3V or 5V) to the VCC pin of DS1685E-3. Use decoupling capacitors near the power supply pins to minimize voltage fluctuations and ensure proper operation.

3. Crystal Oscillator:

Connect an external crystal oscillator (typically 32.768 kHz) to the X1 and X2 pins of DS1685E-3 to provide accurate timekeeping functionality. Ensure proper load capacitors are connected to stabilize the crystal oscillation.

4. Alarm Configuration:

Program the alarm registers of DS1685E-3 to trigger specific events at predefined times. For example, configure an alarm to activate lights or HVAC systems at specific times of the day.

5. Event Logging:

Utilize the non-volatile memory (NVRAM) of DS1685E-3 to log timestamped events, such as motion detection, door/window sensor activations, or temperature/humidity readings. Implement firmware routines to read and write event logs efficiently.

Considerations:

When designing the circuit, consider the following factors:

- Backup Power Supply: Implement a backup power source, such as a coin cell battery, to ensure continuous operation of DS1685E-3 during main power outages.

- Temperature Compensation: Account for temperature variations by calibrating the crystal oscillator or implementing temperature compensation algorithms to maintain accurate timekeeping.

- Data Integrity: Implement error-checking mechanisms and data integrity checks when reading and writing to the NVRAM to prevent data corruption and ensure reliability.

- Firmware Integration: Develop firmware routines to interact with DS1685E-3 registers and handle timekeeping, alarm triggering, and event logging functionalities efficiently.

- System Integration: Integrate DS1685E-3 with other components of the smart home automation system, such as sensors, actuators, and communication modules, to enable seamless operation and coordination.

DS1685E-3 FAQ

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6. What is the process for return or replacement of DS1685E-3?

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 DS1685E-3 we delivered, we will accept the replacement or return of the DS1685E-3 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 DS1685E-3.

(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