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Name: MCP7940MT-I/MS
Brand: Microchip Technology
SKU: MCP7940MT-I/MS
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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Microchip Technology MCP7940MT-I/MS

Part No.:: MCP7940MT-I/MS

Manufacturer:: Microchip Technology

Package:: 8-TSSOP, 8-MSOP (0.118, 3.00mm Width)

Datasheet:: MCP7940MT-I/MS.pdf

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

In Stock:: 2542

Quantity:: Add To Cart

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MCP7940MT-I/MS Specifications

Package/Case:
8-TSSOP, 8-MSOP (0.118, 3.00mm Width)
Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®
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

MCP7940MT-I/MS this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including MCP7940MT-I/MS 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 MCP7940MT-I/MS 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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MCP7940MT-I/MS information

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Basic introduction and simple engineering application of MCP7940MT-I/MS

MCP7940MT-I/MS is a Real-Time Clock (RTC) chip manufactured by Microchip Technology, offering accurate timekeeping and calendar functionality. It integrates a temperature-compensated crystal oscillator (TCXO) and provides battery backup for maintaining timekeeping even in the absence of external power.

Application Scenario:

In a simple project, MCP7940MT-I/MS can be utilized to add timekeeping capabilities to a microcontroller-based system, such as a digital clock or data logger.

Circuit Design:

To create a digital clock using MCP7940MT-I/MS, follow these steps:

1. Hardware Setup:

- Connect MCP7940MT-I/MS to your microcontroller board using the I2C interface. Ensure proper wiring and pull-up resistors are used as per the datasheet.

2. Time Initialization:

- Initialize the RTC chip by sending the appropriate commands through the I2C interface. Set the current time and date according to your requirements.

3. Timekeeping:

- Continuously read the time from MCP7940MT-I/MS and update your microcontroller's display accordingly. This ensures that your digital clock always shows the correct time.

4. Alarm Functionality:

- Utilize the alarm feature of MCP7940MT-I/MS to trigger specific actions at predetermined times. This could include activating an alarm sound or switching on/off certain peripherals.

5. Power Backup:

- Connect a coin cell battery to MCP7940MT-I/MS to provide backup power. This ensures that the RTC continues to keep time accurately even during power outages.

Considerations:

- Calibration: Periodically calibrate the RTC chip to maintain accurate timekeeping, especially if using it in environments with temperature fluctuations.

- Power Consumption: Optimize power usage by configuring MCP7940MT-I/MS for low-power modes when the system is idle.

- Error Handling: Implement error-checking routines in your firmware to handle communication errors or invalid data from the RTC chip.

- User Interface: Design a user-friendly interface to set the time and alarms, considering the capabilities of your microcontroller and display options.

- Integration: Integrate MCP7940MT-I/MS seamlessly into your project by ensuring compatibility with other peripherals and sensors connected to the microcontroller.

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6. What is the process for return or replacement of MCP7940MT-I/MS?

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 MCP7940MT-I/MS we delivered, we will accept the replacement or return of the MCP7940MT-I/MS 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 MCP7940MT-I/MS.

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

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(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations