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Name: MCP795W11-I/SL
Brand: Microchip Technology
SKU: MCP795W11-I/SL
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 MCP795W11-I/SL

Part No.:: MCP795W11-I/SL

Manufacturer:: Microchip Technology

Package:: 14-SOIC (0.154, 3.90mm Width)

Datasheet:: MCP795W11-I/SL.pdf

Description:: IC RTC CLK/CALENDAR SPI 14-SOIC

In Stock:: 2796

Quantity:: Add To Cart

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MCP795W11-I/SL Specifications

Package/Case:
14-SOIC (0.154, 3.90mm Width)
Packaging:
Tube
Series:
-
ProductStatus:
Active
Type:
Clock/Calendar
Features:
Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID, Watchdog Timer
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 ~ 5.5V
OperatingTemperature:
-40°C ~ 85°C
MountingType:
Surface Mount

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MCP795W11-I/SL information

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Basic introduction and simple engineering application of MCP795W11-I/SL

MCP795W11-I/SL is a real-time clock (RTC) module manufactured by Microchip Technology, providing accurate timekeeping and alarm functions. It is commonly used in various electronic projects and embedded systems that require precise timing and scheduling capabilities.

Application Scenario:

In a home automation project, MCP795W11-I/SL can be utilized to schedule lighting control, HVAC system activation, and other time-dependent tasks, enhancing energy efficiency and user convenience.

Circuit Design:

To integrate MCP795W11-I/SL into a simple project, follow these steps:

1. RTC Module Connection:

Connect the MCP795W11-I/SL module to the microcontroller or single-board computer (SBC) using the I2C or SPI interface. Ensure proper wiring and address configuration based on the communication protocol used.

2. Time Setting:

Utilize the microcontroller or SBC to set the current time and date in the MCP795W11-I/SL module. This can be achieved by sending appropriate commands or using dedicated libraries provided by Microchip.

3. Alarm Configuration:

Configure alarms in the MCP795W11-I/SL module to trigger specific actions at predefined times. This could include activating relays, sending notifications, or changing system states.

4. User Interface:

Integrate a user interface, such as buttons or a touchscreen display, to allow users to set alarms, adjust time settings, and monitor system status. Use GPIO pins of the microcontroller or SBC to interface with the user input devices.

5. Power Supply:

Ensure a stable power supply to the MCP795W11-I/SL module and associated components. Use voltage regulators and decoupling capacitors to minimize voltage fluctuations and ensure reliable operation.

Experiment:

To experiment with MCP795W11-I/SL and understand its functionality, try the following:

1. Time Display:

Connect an LCD display to the microcontroller or SBC and program it to show the current time and date obtained from the MCP795W11-I/SL module. Verify the accuracy of the displayed time by comparing it with a reliable time source.

2. Alarm Trigger:

Set an alarm in the MCP795W11-I/SL module to trigger an LED or buzzer connected to the microcontroller or SBC at a specific time. Observe the alarm activation and verify its accuracy.

3. Power Failure Handling:

Simulate a power failure by disconnecting the power supply to the MCP795W11-I/SL module and then restoring power. Ensure that the module resumes timekeeping from the point of interruption without losing track of time.

4. Sleep Mode:

Explore the sleep mode functionality of the MCP795W11-I/SL module to minimize power consumption during idle periods. Measure the power consumption in active and sleep modes to evaluate energy efficiency.

5. Accuracy Test:

Compare the timekeeping accuracy of the MCP795W11-I/SL module with a reference time source over an extended period. Analyze any deviations and factors affecting accuracy, such as temperature variations.

Considerations:

When using MCP795W11-I/SL in a project, consider the following factors:

- Backup Power: Implement a backup power source, such as a coin cell battery, to maintain timekeeping functionality during main power outages.

- Temperature Compensation: Take into account temperature effects on the RTC's crystal oscillator and apply temperature compensation techniques if necessary to ensure accurate timekeeping.

- Communication Protocol: Choose the appropriate communication protocol (I2C or SPI) based on the microcontroller or SBC's capabilities and interface requirements.

- Firmware Development: Develop firmware or software routines to interact with the MCP795W11-I/SL module, including time setting, alarm configuration, and status monitoring.

- System Integration: Integrate the MCP795W11-I/SL module seamlessly into the overall system architecture, considering factors such as PCB layout, enclosure design, and compatibility with other components.

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6. What is the process for return or replacement of MCP795W11-I/SL?

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 MCP795W11-I/SL we delivered, we will accept the replacement or return of the MCP795W11-I/SL 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 MCP795W11-I/SL.

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

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