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Name: MCP79521T-I/MS
Brand: Microchip Technology
SKU: MCP79521T-I/MS
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Microchip Technology MCP79521T-I/MS

Part No.:: MCP79521T-I/MS

Manufacturer:: Microchip Technology

Package:: 10-TFSOP, 10-MSOP (0.118, 3.00mm Width)

Datasheet:: MCP79521T-I/MS.pdf

Description:: IC RTC CLK/CALENDAR SPI 10-MSOP

In Stock:: 2826

Quantity:: Add To Cart

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MCP79521T-I/MS Specifications

Package/Case:
10-TFSOP, 10-MSOP (0.118, 3.00mm Width)
Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®
Series:
-
ProductStatus:
Active
Type:
Clock/Calendar
Features:
Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID
MemorySize:
64B
TimeFormat:
HH:MM:SS:hh (12/24 hr)
DateFormat:
YY-MM-DD-dd
Interface:
SPI
Voltage-Supply:
1.8V ~ 3.6V
Voltage-SupplyBattery:
1.3V ~ 3.6V
Current-Timekeeping(Max):
1µA @ 1.8V ~ 3.6V
OperatingTemperature:
-40°C ~ 85°C
MountingType:
Surface Mount

MCP79521T-I/MS this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including MCP79521T-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 MCP79521T-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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MCP79521T-I/MS information

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Basic introduction and simple engineering application of MCP79521T-I/MS

MCP79521T-I/MS is a real-time clock/calendar (RTCC) device with battery backup, offering accurate timekeeping and calendar functionality. It is commonly used in various electronic systems where precise timekeeping is essential, such as data loggers, instrumentation, and consumer electronics.

Application Scenario:

In a digital alarm clock project, MCP79521T-I/MS can be utilized to keep track of time and trigger alarm events at specific times, providing a functional and reliable timekeeping solution.

Circuit Design:

To create a digital alarm clock using MCP79521T-I/MS, follow these steps:

1. RTCC Connection:

Connect MCP79521T-I/MS to the microcontroller or host system using the I2C or SPI interface. Ensure proper connections for power, ground, and communication lines.

2. Time Setting:

Utilize the microcontroller to set the current time and date in MCP79521T-I/MS through the I2C or SPI interface. Implement user input mechanisms, such as buttons or a keypad, to adjust the time settings.

3. Alarm Configuration:

Program MCP79521T-I/MS to trigger alarm events at specific times by configuring the alarm registers through the communication interface. Define the alarm conditions, such as hour, minute, and day of the week, for accurate alarm triggering.

4. User Interface:

Integrate a user interface, such as an LCD display or seven-segment LED display, to show the current time, set alarm times, and display alarm notifications. Use GPIO pins of the microcontroller to interface with the display components.

5. Alarm Output:

Connect an output device, such as a buzzer or LED, to indicate alarm activation. Utilize GPIO pins of the microcontroller to drive the alarm output based on the alarm status read from MCP79521T-I/MS.

Experiment Steps:

Step 1: Hardware Setup

- Connect MCP79521T-I/MS to the microcontroller development board or host system according to the datasheet specifications.

- Ensure proper power supply connections and verify the communication interface (I2C/SPI) connections.

Step 2: Time Setting

- Write a firmware program to initialize MCP79521T-I/MS and set the current time and date using the microcontroller.

- Implement a mechanism to adjust the time settings using user input devices.

Step 3: Alarm Configuration

- Program the microcontroller to configure alarm settings in MCP79521T-I/MS, such as alarm time and repeat intervals.

- Ensure proper error checking and handling for alarm configuration parameters.

Step 4: User Interface Implementation

- Develop firmware code to display the current time, set alarm times, and show alarm notifications on the user interface display.

- Test the user interface functionality to ensure proper interaction with MCP79521T-I/MS.

Step 5: Alarm Output Testing

- Connect an output device, such as a buzzer or LED, to the microcontroller GPIO pin designated for alarm output.

- Write firmware code to activate the alarm output based on the alarm status read from MCP79521T-I/MS.

- Test the alarm output functionality by triggering alarms at different times and verifying the response of the connected output device.

Considerations:

When designing the digital alarm clock project, consider the following factors:

- Power Supply: Ensure stable power supply to MCP79521T-I/MS for reliable operation and battery backup functionality.

- Alarm Accuracy: Test the accuracy of alarm triggering and timekeeping to ensure proper functionality in real-world scenarios.

- User Interface Design: Design an intuitive and user-friendly interface for easy time setting and alarm configuration.

- Firmware Optimization: Optimize firmware code for efficient operation and minimal resource utilization, considering the limited resources of microcontrollers.

- Testing and Validation: Thoroughly test the digital alarm clock system to validate its performance, reliability, and compliance with user requirements.

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6. What is the process for return or replacement of MCP79521T-I/MS?

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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.

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