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Name: DS1646-120+
Brand: Analog Devices Inc./Maxim Integrated
SKU: DS1646-120+
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 DS1646-120+

Part No.:: DS1646-120+

Manufacturer:: Analog Devices Inc./Maxim Integrated

Package:: 32-DIP Module (0.600, 15.24mm)

Datasheet:: DS1646-120+.pdf

Description:: IC RTC CLK/CALENDAR PAR 32-EDIP

In Stock:: 2069

Quantity:: Add To Cart

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DS1646-120+ Specifications

Package/Case:
32-DIP Module (0.600, 15.24mm)
Packaging:
Tube
Series:
-
ProductStatus:
Obsolete
Type:
Clock/Calendar
Features:
Leap Year, NVSRAM
MemorySize:
128KB
TimeFormat:
HH:MM:SS (24 hr)
DateFormat:
YY-MM-DD-dd
Interface:
Parallel
Voltage-Supply:
4.5V ~ 5.5V
Voltage-SupplyBattery:
3V
Current-Timekeeping(Max):
4mA @ 4.5 V ~ 5.5 V
OperatingTemperature:
0°C ~ 70°C
MountingType:
Through Hole

DS1646-120+ this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including DS1646-120+ 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 DS1646-120+ 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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DS1646-120+ information

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Basic introduction and simple engineering application of DS1646-120+

DS1646-120+ is a real-time clock (RTC) module with integrated non-volatile static RAM (NVSRAM), manufactured by Maxim Integrated. It combines the functionality of a clock/calendar with that of a small amount of non-volatile memory, making it suitable for applications requiring timekeeping and data storage capabilities.

Introduction:

The DS1646-120+ RTC module provides accurate timekeeping information, including seconds, minutes, hours, day, date, month, and year. Additionally, it incorporates 256 bytes of non-volatile RAM, allowing users to store critical data even when the power supply is disconnected. This feature makes it ideal for applications where preserving data integrity is essential.

Application Scenario:

In a simple project, such as a data logger for environmental monitoring, DS1646-120+ can be utilized for time stamping sensor readings and storing them in non-volatile memory. Let's explore how to implement this in a basic circuit.

Circuit Design:

To create a data logger using DS1646-120+, follow these steps:

1. Interface Setup:

Connect DS1646-120+ to a microcontroller, such as an Arduino or Raspberry Pi, using the I2C or SPI communication protocol. Ensure proper wiring and configure the microcontroller to communicate with the RTC module.

2. Sensor Integration:

Connect sensors, such as temperature, humidity, or light sensors, to the microcontroller. Collect sensor data periodically, along with the current timestamp obtained from DS1646-120+.

3. Data Logging:

Store the sensor readings along with their corresponding timestamps in the non-volatile memory of DS1646-120+. Utilize the available NVSRAM space efficiently to ensure data integrity and longevity.

4. Power Supply:

Provide a stable power supply to both the microcontroller and DS1646-120+. Implement backup power sources, such as batteries or capacitors, to maintain RTC operation and data retention during power interruptions.

5. Data Retrieval:

Implement functionality in the microcontroller firmware to retrieve stored data from DS1646-120+ as required. Process the data for analysis or display, incorporating timestamps for accurate record interpretation.

Experiment Steps:

1. Connect the SDA (data) and SCL (clock) pins of DS1646-120+ to the corresponding pins on the microcontroller.

2. Initialize communication with DS1646-120+ using the appropriate library or driver for your microcontroller platform.

3. Configure the RTC module with the current date and time.

4. Read sensor data from connected sensors at regular intervals.

5. Store the sensor readings along with timestamps in the non-volatile memory of DS1646-120+.

6. Implement error-checking mechanisms to ensure data integrity during storage and retrieval processes.

7. Test the data logging system under various conditions, including power interruptions, to verify proper operation and data retention capabilities.

Considerations:

- Data Integrity: Implement checksum or error correction mechanisms to detect and correct data corruption in the NVSRAM.

- Power Management: Design power-saving strategies to extend the battery life and minimize energy consumption, especially in battery-operated applications.

- Data Retrieval Efficiency: Optimize data retrieval algorithms to minimize access time and ensure timely response to user queries or requests.

- Environmental Considerations: Ensure the data logger's enclosure provides adequate protection against environmental factors, such as moisture, dust, and temperature fluctuations.

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6. What is the process for return or replacement of DS1646-120+?

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(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 DS1646-120+.

(3)The PartNo is unused and only in the original unpacked packaging.

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