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Name: MCP795W22-I/ST
Brand: Microchip Technology
SKU: MCP795W22-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 MCP795W22-I/ST

Part No.:: MCP795W22-I/ST

Manufacturer:: Microchip Technology

Package:: 14-TSSOP (0.173, 4.40mm Width)

Datasheet:: MCP795W22-I/ST.pdf

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

In Stock:: 2121

Quantity:: Add To Cart

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MCP795W22-I/ST Specifications

Package/Case:
14-TSSOP (0.173, 4.40mm 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

MCP795W22-I/ST this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including MCP795W22-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 MCP795W22-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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MCP795W22-I/ST information

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Basic introduction and simple engineering application of MCP795W22-I/ST

MCP795W22-I/ST is a real-time clock (RTC) device manufactured by Microchip Technology, providing accurate timekeeping and timestamping capabilities for various applications. It features a battery backup, digital trimming for accuracy adjustment, and a wide operating voltage range.

Application Scenario:

In embedded systems and IoT devices, MCP795W22-I/ST can be utilized for tasks requiring precise timekeeping, such as data logging, event scheduling, and synchronization of multiple devices.

Circuit Design:

To incorporate MCP795W22-I/ST into a project, follow these steps:

1. Connection:

Connect MCP795W22-I/ST to the microcontroller or host system using the I2C or SPI interface. Ensure proper pull-up resistors are connected to the SDA and SCL lines for reliable communication.

2. Power Supply:

Provide a stable power supply within the specified voltage range (1.8V to 5.5V) to MCP795W22-I/ST. Utilize voltage regulators and decoupling capacitors to minimize voltage fluctuations and ensure consistent operation.

3. Initialization:

Initialize the MCP795W22-I/ST device by configuring the necessary parameters, including time, date, and alarm settings, using the I2C or SPI interface. Follow the manufacturer's datasheet and application notes for proper initialization sequence and register settings.

4. Timekeeping:

Utilize the built-in clock/calendar functionality of MCP795W22-I/ST to keep track of time and date. Update the clock registers periodically to ensure accurate timekeeping, taking into account factors like leap years and daylight saving time adjustments.

5. Timestamping:

For applications requiring event logging or data timestamping, utilize the timestamp feature of MCP795W22-I/ST to record the exact time when events occur. Store the timestamps in non-volatile memory for later retrieval and analysis.

6. Backup Power:

Ensure continuity of timekeeping even in the absence of primary power by connecting a backup battery, such as a coin cell, to the VBAT pin of MCP795W22-I/ST. This ensures that the RTC continues to function during power outages or when the main power source is disconnected.

Considerations:

When designing with MCP795W22-I/ST, consider the following factors:

- Accuracy Requirements: Evaluate the accuracy requirements of your application and adjust the trimming registers of MCP795W22-I/ST accordingly for optimal performance.

- Battery Life: Choose an appropriate backup battery with sufficient capacity to maintain timekeeping during extended power-off periods while minimizing energy consumption.

- Interface Compatibility: Ensure compatibility between MCP795W22-I/ST and the microcontroller or host system in terms of communication interface (I2C or SPI), voltage levels, and protocol.

- Environmental Conditions: Consider environmental factors such as temperature, humidity, and vibration, and ensure that MCP795W22-I/ST operates within its specified operating conditions for reliable performance.

- Firmware Integration: Develop firmware routines to interact with MCP795W22-I/ST for setting time/date, reading timestamps, and handling alarms, integrating them seamlessly into your application code.

MCP795W22-I/ST FAQ

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6. What is the process for return or replacement of MCP795W22-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 MCP795W22-I/ST we delivered, we will accept the replacement or return of the MCP795W22-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 MCP795W22-I/ST.

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