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Name: MCP79402T-I/MS
Brand: Microchip Technology
SKU: MCP79402T-I/MS
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Microchip Technology MCP79402T-I/MS

Part No.:: MCP79402T-I/MS

Manufacturer:: Microchip Technology

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

Datasheet:: MCP79402T-I/MS.pdf

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

In Stock:: 3737

Quantity:: Add To Cart

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MCP79402T-I/MS Specifications

Package/Case:
8-TSSOP, 8-MSOP (0.118, 3.00mm Width)
Packaging:
Tape & Reel (TR)
Series:
-
ProductStatus:
Active
Type:
Clock/Calendar
Features:
Alarm, Leap Year, Square Wave Output, SRAM, Unique ID
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 (Typ) @ 3.3V
OperatingTemperature:
-40°C ~ 85°C
MountingType:
Surface Mount

MCP79402T-I/MS this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including MCP79402T-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 MCP79402T-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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MCP79402T-I/MS information

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Basic introduction and simple engineering application of MCP79402T-I/MS

MCP79402T-I/MS is a highly integrated Real-Time Clock (RTC) module manufactured by Microchip Technology. It offers precise timekeeping capabilities and various features suitable for a wide range of applications, including embedded systems and IoT devices.

Introduction:

The MCP79402T-I/MS RTC module combines a 64-byte battery-backed SRAM, a 64-bit unique ID, a 32.768 kHz crystal oscillator, and a digital trimming circuit for accurate timekeeping. It communicates with the host microcontroller via the I2C interface, making it easy to integrate into projects.

Application Scenario:

In a simple project, MCP79402T-I/MS can be used to add timekeeping functionality to a data logging system. Let's consider a temperature and humidity monitoring system where accurate timestamping of sensor readings is crucial for data analysis.

Experimental Setup:

To integrate MCP79402T-I/MS into the project, follow these steps:

1. Hardware Connection:

Connect the MCP79402T-I/MS module to the microcontroller board using the I2C interface. Typically, the SDA pin of the module connects to the microcontroller's SDA pin, and the SCL pin connects to the microcontroller's SCL pin. Ensure proper pull-up resistors (typically 4.7kΩ) are connected to both SDA and SCL lines.

2. Power Supply:

Provide power to the MCP79402T-I/MS module. It operates at a voltage range of 1.8V to 5.5V, so ensure the power supply meets this requirement. Connect the VCC pin of the module to the appropriate power source, and connect the GND pin to the ground.

3. Initialization:

In the microcontroller firmware, initialize the I2C communication interface and configure it to communicate with the MCP79402T-I/MS module. Send the necessary commands to set the current time and date on the RTC module.

4. Data Logging:

Implement the data logging functionality in the firmware. Read sensor data (such as temperature and humidity) periodically, along with the current time from the MCP79402T-I/MS module. Store this data in non-volatile memory along with timestamps.

5. Data Analysis:

After collecting a sufficient amount of data, transfer it to a computer for analysis. Utilize the timestamps recorded by the MCP79402T-I/MS module to correlate sensor readings with specific time intervals accurately.

Considerations:

When working with the MCP79402T-I/MS module, keep the following considerations in mind:

- Battery Backup: Ensure that a backup battery is connected to the MCP79402T-I/MS module to maintain timekeeping functionality during power loss.

- I2C Addressing: Pay attention to the I2C address of the MCP79402T-I/MS module, especially when multiple I2C devices are present in the system, to avoid address conflicts.

- Accuracy: Periodically calibrate the RTC module to maintain accurate timekeeping, especially if long-term stability is required for the application.

- Power Consumption: Optimize power management in the system to minimize power consumption, especially in battery-powered applications, to prolong battery life.

- Error Handling: Implement robust error handling mechanisms in the firmware to handle communication errors or sensor failures gracefully.

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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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