What is the Additional Feature ?

Name: MCP7940M-I/ST
Brand: Microchip Technology
SKU: MCP7940M-I/ST
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 MCP7940M-I/ST

Part No.:: MCP7940M-I/ST

Manufacturer:: Microchip Technology

Package:: 8-TSSOP (0.173, 4.40mm Width)

Datasheet:: MCP7940M-I/ST.pdf

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

In Stock:: 2470

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

MCP7940M-I/ST Specifications

Package/Case:
8-TSSOP (0.173, 4.40mm Width)
Packaging:
Tube
Series:
-
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:
-
Current-Timekeeping(Max):
1µA @ 5.5V
OperatingTemperature:
-40°C ~ 85°C
MountingType:
Surface Mount

MCP7940M-I/ST this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including MCP7940M-I/ST 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 MCP7940M-I/ST 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.

MCP7940M-I/ST information

Views：

Basic introduction and simple engineering application of MCP7940M-I/ST

MCP7940M-I/ST is a real-time clock (RTC) chip manufactured by Microchip Technology, offering precise timekeeping and calendar functionality. It is commonly used in embedded systems, IoT devices, and consumer electronics where accurate timekeeping is essential.

Application Scenario:

In a digital alarm clock project, MCP7940M-I/ST can be utilized to provide accurate timekeeping and alarm functionality.

Circuit Design:

To create a digital alarm clock using MCP7940M-I/ST, follow these steps:

1. RTC Connection:

Connect MCP7940M-I/ST to the microcontroller, ensuring proper connections for I2C communication. Pinout details can be found in the datasheet.

2. Time Setting:

Utilize the microcontroller to communicate with MCP7940M-I/ST and set the current time and date during initialization or through a user interface.

3. Alarm Configuration:

Program the alarm registers of MCP7940M-I/ST to trigger an interrupt or signal when the set alarm time is reached.

4. Display Interface:

Connect a display module, such as an LCD or LED display, to the microcontroller to show the current time, set alarms, and provide user interaction.

5. User Input:

Integrate buttons or a keypad to allow users to set alarm times, toggle alarms on/off, and perform other functions.

6. Power Supply:

Ensure a stable power supply for both MCP7940M-I/ST and the microcontroller to maintain accurate timekeeping and alarm functionality.

Experiment Steps:

Follow these steps to build a basic digital alarm clock using MCP7940M-I/ST:

Step 1: Hardware Setup
- Connect MCP7940M-I/ST to the microcontroller according to the datasheet.
- Connect a display module and user input interface to the microcontroller.
- Ensure a stable power supply for all components.

Step 2: Software Development
- Write code to initialize MCP7940M-I/ST and set the current time and date.
- Implement functions to configure alarms and handle alarm interrupts.
- Develop code to interact with the display and user input interface to set alarms and display time.

Step 3: Testing and Debugging
- Test the functionality of the digital alarm clock, including timekeeping accuracy and alarm triggering.
- Debug any issues with timekeeping, alarm triggering, or user interface interaction.
- Ensure the system operates reliably under various conditions.

Considerations:

- Backup Power: Implement a backup power source, such as a coin cell battery, to maintain timekeeping in case of main power loss.
- User Experience: Design the user interface for intuitive interaction and easy alarm setting.
- Alarm Sound: Integrate a buzzer or speaker to provide audible alerts when alarms are triggered.
- Low Power Mode: Utilize low power modes of MCP7940M-I/ST and the microcontroller to minimize power consumption.

MCP7940M-I/ST FAQ

1. How to order MCP7940M-I/ST 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 MCP7940M-I/ST is from the original manufacturer or authorized agents?

We have a professional and experienced quality control team to strictly verify and test the MCP7940M-I/ST. All suppliers must pass our qualification reviews before they can publish their products including MCP7940M-I/ST on icwhale.com; we pay more attention to the channels and quality of MCP7940M-I/ST products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.

3. Are the MCP7940M-I/ST price and inventory displayed accurate?

The price and inventory of MCP7940M-I/ST 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 MCP7940M-I/ST?

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 MCP7940M-I/ST we delivered, we will accept the replacement or return of the MCP7940M-I/ST 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 MCP7940M-I/ST.

(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