What is the Additional Feature ?

Name: MCP7940NT-I/SN
Brand: Microchip Technology
SKU: MCP7940NT-I/SN
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

Microchip Technology MCP7940NT-I/SN

Part No.:: MCP7940NT-I/SN

Manufacturer:: Microchip Technology

Package:: 8-SOIC (0.154, 3.90mm Width)

Datasheet:: MCP7940NT-I/SN.pdf

Description:: IC RTC CLK/CALENDAR I2C 8-SOIC

In Stock:: 2518

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

MCP7940NT-I/SN Specifications

Package/Case:
8-SOIC (0.154, 3.90mm Width)
Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®
Series:
Automotive, AEC-Q100
ProductStatus:
Active
Type:
Clock/Calendar
Features:
Alarm, Leap Year, Square Wave Output, SRAM
MemorySize:
64B
TimeFormat:
HH:MM:SS (12/24 hr)
DateFormat:
YY-MM-DD-dd
Interface:
I²C, 2-Wire Serial
Voltage-Supply:
1.8V ~ 5.5V
Voltage-SupplyBattery:
1.3V ~ 5.5V
Current-Timekeeping(Max):
1.2µA @ 3.3V
OperatingTemperature:
-40°C ~ 85°C
MountingType:
Surface Mount

MCP7940NT-I/SN this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including MCP7940NT-I/SN 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 MCP7940NT-I/SN 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.

MCP7940NT-I/SN information

Views：

Basic introduction and simple engineering application of MCP7940NT-I/SN

MCP7940NT-I/SN is a highly integrated real-time clock/calendar (RTCC) chip, commonly used in electronic devices for timekeeping and scheduling applications. It features battery backup capability, low power consumption, and a wide operating voltage range.

Application Scenario:

In electronic gadgets like digital watches or IoT devices, MCP7940NT-I/SN serves as a reliable timekeeping component, ensuring accurate time display and event scheduling.

Circuit Design:

To implement a simple clock application using MCP7940NT-I/SN, follow these steps:

1. Chip Initialization:

Begin by connecting MCP7940NT-I/SN to the microcontroller or development board using the I2C interface. Initialize the chip by configuring the necessary registers for clock settings and alarm functions.

2. Timekeeping:

Set the current time and date on MCP7940NT-I/SN registers using the microcontroller. Utilize the built-in oscillator circuitry for accurate timekeeping, ensuring synchronization with an external crystal oscillator if required.

3. Alarm Functionality:

Configure alarm settings on MCP7940NT-I/SN to trigger specific actions or events at predefined times. This can include activating peripherals, sending notifications, or executing tasks based on time-sensitive criteria.

4. Backup Power:

Ensure proper connection of a backup battery to MCP7940NT-I/SN to maintain timekeeping functionality in case of primary power loss. Implement power switching circuitry to seamlessly transition between the main power source and the backup battery.

5. Integration with User Interface:

Integrate MCP7940NT-I/SN with a user interface, such as an LCD display or LED indicators, to provide real-time clock display and alarm status feedback to the user. Utilize GPIO pins of the microcontroller for interfacing with these display components.

Considerations:

When designing the clock application, consider the following aspects:

- I2C Communication: Ensure proper communication between MCP7940NT-I/SN and the microcontroller via the I2C bus, adhering to the specified communication protocol.

- Power Management: Optimize power consumption by utilizing low-power modes and efficient power management techniques to prolong battery life in portable devices.

- Error Handling: Implement error detection and correction mechanisms to handle potential communication errors or clock synchronization issues effectively.

- Accuracy Calibration: Periodically calibrate the clock's accuracy by comparing it with an external time reference, adjusting the oscillator frequency or clock drift compensation accordingly.

- Firmware Optimization: Develop firmware algorithms to efficiently handle timekeeping tasks, minimize CPU overhead, and ensure smooth operation of the clock application.

MCP7940NT-I/SN FAQ

1. How to order MCP7940NT-I/SN 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 MCP7940NT-I/SN is from the original manufacturer or authorized agents?

We have a professional and experienced quality control team to strictly verify and test the MCP7940NT-I/SN. All suppliers must pass our qualification reviews before they can publish their products including MCP7940NT-I/SN on icwhale.com; we pay more attention to the channels and quality of MCP7940NT-I/SN products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.

3. Are the MCP7940NT-I/SN price and inventory displayed accurate?

The price and inventory of MCP7940NT-I/SN 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 MCP7940NT-I/SN?

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 MCP7940NT-I/SN we delivered, we will accept the replacement or return of the MCP7940NT-I/SN 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 MCP7940NT-I/SN.

(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