What is the Additional Feature ?

Name: RTC-72421A
Brand: Epson
SKU: RTC-72421A
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

Cart ( )

lmages are for reference only See Product Specifications

Epson RTC-72421A

Part No.:: RTC-72421A

Manufacturer:: Epson

Package:: 18-DIP (0.300, 7.62mm)

Datasheet:: RTC-72421A.pdf

Description:: IC RTC CLK/CALENDAR PAR 18-DIP

In Stock:: 2873

Quantity:: Add To Cart

For more detailed including pricing and shipping

: Quick response, quick quotation

: Flash shipment, no worries after sales

: Original channel, guarantee of the authentic products

Please send RFQ , we will respond immediately.

Purchase and inquiry

RTC-72421A Specifications

Package/Case:
18-DIP (0.300, 7.62mm)
Packaging:
Tube
Series:
-
ProductStatus:
Obsolete
Type:
Clock/Calendar
Features:
Leap Year
MemorySize:
-
TimeFormat:
HH:MM:SS (12/24 hr)
DateFormat:
YY-MM-DD-dd
Interface:
Parallel
Voltage-Supply:
4.5V ~ 5.5V
Voltage-SupplyBattery:
-
Current-Timekeeping(Max):
5µA ~ 10µA @ 2V ~ 5V
OperatingTemperature:
-10°C ~ 70°C
MountingType:
Through Hole

RTC-72421A this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including RTC-72421A 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 RTC-72421A to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.

Purchase in icwhale.com

There is no doubt that you may place an order without registering to icwhale.com.

We strongly suggest you sign in our shop before purchasing as you can track your order real-time tracking.

Means of Payment in icwhale.com

For your convenience, we support multiple payment methods in USD, including PayPal, Credit Card, wire transfer. and Alipay.

RFQ (Request for Quotations) in icwhale.com

It is recommended to acquire for quotations to get the latest prices and inventories about the parts.

Our sales will reply to your request by email within 24 hours.

Warm reminder

1. You'll receive an order information email in your email inbox. (Please remember to check the spam folder if you didn't hear from us).

2. Since inventories and prices may fluctuate to some extent, the sales manager is going to reconfirm the order and let you know if there are any updates.

Shipping & Handling

Shipping fee starts at $35, but some countries will exceed $35. For example (South Africa, Brazil, India, Pakistan, Israel, etc.)

The basic freight (for package ≤0.5kg or corresponding volume) depends on the time zone and countries.

Shipping Method

Currently, our products are shipped through DHL, FedEx, SF, UPS and China Post.

Order Tracking for International Orders

Once your order has been shipped, the tracking number will be sent to the email address registered to your account. This information can also be viewed when logged into your account in the "my account" page.

RTC-72421A information

Views：

Basic introduction and simple engineering application of RTC-72421A

RTC-72421A is a real-time clock (RTC) module commonly used in electronic projects and embedded systems to keep track of time accurately. It features a built-in clock/calendar circuitry along with battery backup to ensure uninterrupted timekeeping even during power loss or system shutdown.

Application Scenario:

In a weather station project, RTC-72421A can be utilized to timestamp the data readings and synchronize the system with real-world time for accurate record-keeping and analysis.

Experiment Steps:

1. RTC Module Connection:

Connect the RTC-72421A module to your microcontroller or development board. Ensure proper wiring of the module's power, ground, and communication pins to establish a reliable connection.

2. Initialization:

Write initialization code in your microcontroller firmware to configure the communication protocol (such as I2C or SPI) and set up the necessary registers in the RTC-72421A module for timekeeping.

3. Time Setting:

Implement functions in your firmware to set the current date and time in the RTC-72421A module. You can input the date and time manually or synchronize it with an external time source like GPS or NTP servers.

4. Data Logging:

Utilize the RTC-72421A module's timestamp feature to log sensor data readings at specific intervals. Record environmental parameters such as temperature, humidity, and atmospheric pressure along with the corresponding timestamp for accurate data analysis.

5. Power Backup Test:

Disconnect the main power source to simulate a power outage. Verify that the RTC-72421A module continues to keep track of time using the backup battery. Reconnect the power source and ensure seamless transition without losing the timekeeping accuracy.

Considerations:

- Battery Life: Monitor the battery voltage periodically to ensure sufficient backup power for the RTC-72421A module. Replace the backup battery as needed to prevent data loss.

- Error Handling: Implement error detection and recovery mechanisms in your firmware to handle communication errors or unexpected behavior from the RTC-72421A module.

- Calibration: Periodically calibrate the RTC-72421A module to compensate for drift and ensure accurate timekeeping over extended periods.

- Integration: Integrate the timestamped data from the RTC-72421A module into your application software for further analysis, visualization, and presentation.

Conclusion:

In summary, RTC-72421A is a versatile RTC module suitable for various timekeeping applications in electronics projects. By following the experiment steps and considerations outlined above, you can effectively incorporate RTC-72421A into your projects and enhance their functionality with accurate timekeeping capabilities.

RTC-72421A FAQ

1. How to order RTC-72421A on icwhale.com?

Currently, icwhale.com only provide peer-to-peer order processing. While you submit the RFQ, our professional agent will contact you with the competitive prices in the global market, and our agent will prompt you to finish the order if you accept our offers.

2. How does icwhale.com guarantee that RTC-72421A is from the original manufacturer or authorized agents?

We have a professional and experienced quality control team to strictly verify and test the RTC-72421A. All suppliers must pass our qualification reviews before they can publish their products including RTC-72421A on icwhale.com; we pay more attention to the channels and quality of RTC-72421A products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.

3. Are the RTC-72421A price and inventory displayed accurate?

The price and inventory of RTC-72421A fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.

4. What forms of payment are accepted?

Wire Transfer, PayPal, Alipay, Wechat, Credit Card, Western Union, MoneyGram, and Escrow are all acceptable.

Warm Tips: Some orders in certain payment forms may require handling fee.

5. How is the shipping arranged?

Customers can choose industry-leading freight companies, including DHL, UPS, FedEx, TNT, and Registered Mail. Shipping insurance is also available.

Once your order has been processed for shipment, our salesperson will send you an email advising you of the shipping status and tracking number.

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 RTC-72421A?

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 RTC-72421A we delivered, we will accept the replacement or return of the RTC-72421A 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 RTC-72421A.

(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