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Name: MCP79521-I/MS
Brand: Microchip Technology
SKU: MCP79521-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 MCP79521-I/MS

Part No.:: MCP79521-I/MS

Manufacturer:: Microchip Technology

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

Datasheet:: MCP79521-I/MS.pdf

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

In Stock:: 3783

Quantity:: Add To Cart

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MCP79521-I/MS Specifications

Package/Case:
10-TFSOP, 10-MSOP (0.118, 3.00mm Width)
Packaging:
Tube
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

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MCP79521-I/MS information

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Basic introduction and simple engineering application of MCP79521-I/MS

MCP79521-I/MS is a real-time clock (RTC) module manufactured by Microchip Technology, offering accurate timekeeping functionality for a variety of applications. It integrates a low-power RTC with a battery backup, making it suitable for devices requiring precise timekeeping even in the absence of external power.

Introduction:

The MCP79521-I/MS RTC module provides a convenient solution for maintaining accurate time information in embedded systems, IoT devices, data loggers, and other applications where timing precision is essential. With its small form factor and low power consumption, it's ideal for battery-powered devices that need to track time over extended periods.

Application in Simple Projects:

Let's explore how to incorporate the MCP79521-I/MS RTC module into a simple project, such as a digital clock:

1. Hardware Setup:

Connect the MCP79521-I/MS module to your microcontroller or development board. Ensure proper connections for power (VCC and GND) and communication (I2C or SPI).

2. Initialization:

Initialize the RTC module in your firmware code. This involves configuring the communication protocol (I2C or SPI) and setting up the necessary registers for timekeeping operations.

3. Setting the Time:

Utilize the provided functions or libraries to set the current time on the RTC module. This may involve inputting the current date and time manually or synchronizing with an external time source.

4. Reading the Time:

Implement code to read the current time from the MCP79521-I/MS module. This information can be used to display the time on an LCD screen, LED display, or serial monitor.

5. Adding Features:

Enhance your project by adding features such as alarm functionality, temperature compensation, or periodic timestamping. Utilize the capabilities of the MCP79521-I/MS module to extend the functionality of your application.

Experiment:

To better understand the capabilities of the MCP79521-I/MS RTC module, try the following experiment:

Experiment Title: Timekeeping Accuracy Test

Objective: To evaluate the accuracy of the MCP79521-I/MS RTC module over a defined period.

Materials:

- MCP79521-I/MS RTC module

- Microcontroller or development board

- Power supply

- Computer with development environment

- Multimeter (optional)

Procedure:

1. Connect the MCP79521-I/MS RTC module to your microcontroller or development board as per the hardware setup instructions.

2. Write firmware code to initialize the RTC module and read the current time. Ensure the code includes provisions for logging timestamps or displaying time information.

3. Power up the system and verify that the RTC module is functioning correctly.

4. Record the initial time displayed by the RTC module.

5. Allow the system to run for a defined period (e.g., 24 hours).

6. Periodically check the time displayed by the RTC module and compare it with an accurate time source (e.g., a network-synced clock or GPS time).

7. Calculate the deviation between the RTC module's time and the reference time source. Evaluate the accuracy of the MCP79521-I/MS RTC module based on this deviation.

Results:

Record the observed deviations over the test period and analyze the accuracy of the MCP79521-I/MS RTC module. Consider factors such as temperature variations and power supply stability that may affect timekeeping accuracy.

Conclusion:

Based on the experiment results, draw conclusions about the suitability of the MCP79521-I/MS RTC module for your application. Consider factors such as long-term drift, power consumption, and ease of integration when assessing its performance.

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6. What is the process for return or replacement of MCP79521-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.

(2)We are informed of the defect described above within 90 days after the delivery of MCP79521-I/MS.

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