What is the Additional Feature ?

Name: MCP79402-I/ST
Brand: Microchip Technology
SKU: MCP79402-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.

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Microchip Technology MCP79402-I/ST

Part No.:: MCP79402-I/ST

Manufacturer:: Microchip Technology

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

Datasheet:: MCP79402-I/ST.pdf

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

In Stock:: 2045

Quantity:: Add To Cart

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MCP79402-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, 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

MCP79402-I/ST this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including MCP79402-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 MCP79402-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.

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MCP79402-I/ST information

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Basic introduction and simple engineering application of MCP79402-I/ST

MCP79402-I/ST is a highly integrated real-time clock (RTC) chip manufactured by Microchip Technology. It provides accurate timekeeping and calendar functions, along with battery backup support, making it suitable for various embedded applications.

Application Scenario:

In a simple project like a digital alarm clock, MCP79402-I/ST can be utilized to maintain accurate timekeeping even during power interruptions, ensuring the alarm functions reliably.

Circuit Design:

To create a digital alarm clock using MCP79402-I/ST, follow these steps:

1. RTC Connection:

Connect the necessary pins of MCP79402-I/ST, such as the SDA and SCL pins, to the corresponding pins of the microcontroller or development board. Ensure proper pull-up resistors are connected to these lines.

2. Alarm Setting:

Utilize the alarm functionality of MCP79402-I/ST to set the desired alarm time. This can be done by configuring the alarm registers of the RTC chip through the I2C interface.

3. Display Integration:

Integrate a display module, such as an LCD or OLED display, to show the current time and alarm settings. Connect the necessary data and control lines from the display module to the microcontroller.

4. User Input:

Implement user input functionality, such as buttons or a keypad, to allow users to set the alarm time and control other features of the clock. Connect these input devices to the microcontroller's GPIO pins.

5. Buzzer Connection:

Connect a buzzer or speaker to the microcontroller to provide audible alerts when the alarm triggers. Utilize a GPIO pin to drive the buzzer and generate the alarm sound.

Considerations:

When designing the circuit, consider the following aspects:

- Power Supply: Ensure a stable power supply is provided to both MCP79402-I/ST and the microcontroller to prevent data loss and maintain proper operation.

- Interrupt Handling: Implement interrupt handling routines in the firmware to respond to alarm triggers generated by MCP79402-I/ST, ensuring timely execution of alarm-related tasks.

- Display Update Frequency: Optimize the display update frequency to minimize power consumption while still providing a visually pleasing user experience.

- Battery Backup: Utilize a backup battery for MCP79402-I/ST to ensure continued timekeeping functionality during main power outages.

- Firmware Validation: Thoroughly test the firmware to verify proper integration with MCP79402-I/ST and reliable operation of the digital alarm clock under various conditions.

MCP79402-I/ST FAQ

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6. What is the process for return or replacement of MCP79402-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 MCP79402-I/ST we delivered, we will accept the replacement or return of the MCP79402-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 MCP79402-I/ST.

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

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