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Name: MCP795W21T-I/SL
Brand: Microchip Technology
SKU: MCP795W21T-I/SL
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Microchip Technology MCP795W21T-I/SL

Part No.:: MCP795W21T-I/SL

Manufacturer:: Microchip Technology

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

Datasheet:: MCP795W21T-I/SL.pdf

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

In Stock:: 3212

Quantity:: Add To Cart

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MCP795W21T-I/SL Specifications

Package/Case:
14-SOIC (0.154, 3.90mm Width)
Packaging:
Tape & Reel (TR)
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

MCP795W21T-I/SL this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including MCP795W21T-I/SL 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 MCP795W21T-I/SL 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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MCP795W21T-I/SL information

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Basic introduction and simple engineering application of MCP795W21T-I/SL

MCP795W21T-I/SL is a real-time clock (RTC) module with EEPROM memory, commonly used in embedded systems for timekeeping and data logging applications. It features a highly accurate oscillator, low power consumption, and a wide operating voltage range.

Application Scenario:

In a home automation project, MCP795W21T-I/SL can be utilized to timestamp events, such as turning lights on/off or recording temperature readings, enabling precise scheduling and data logging capabilities.

Circuit Design:

To implement a simple data logging system using MCP795W21T-I/SL, follow these steps:

1. Interfacing:

Connect MCP795W21T-I/SL to the microcontroller's I2C bus. Typically, connect the SDA pin to the microcontroller's SDA pin and the SCL pin to the microcontroller's SCL pin.

2. Initialization:

Initialize the I2C communication with MCP795W21T-I/SL by sending the device address and the register address to access. For example, to write data to the RTC time registers, send the device address followed by the address of the RTC time registers.

3. Setting Time:

Set the current time and date by writing to the appropriate registers in MCP795W21T-I/SL. Ensure to account for leap years and adjust for daylight saving time if necessary.

4. Data Logging:

Log events or sensor readings by writing data to the EEPROM memory of MCP795W21T-I/SL. Allocate specific memory locations for different types of data to facilitate easy retrieval and analysis.

5. Retrieval:

Retrieve stored data from MCP795W21T-I/SL EEPROM memory when required. Read the data from the specified memory locations and process it according to the application's requirements.

Considerations:

When working with MCP795W21T-I/SL, consider the following:

- Power Supply: Ensure a stable power supply to MCP795W21T-I/SL to maintain accurate timekeeping and prevent data loss.

- EEPROM Write Endurance: Limit the frequency of EEPROM writes to MCP795W21T-I/SL to prolong the device's lifespan, as EEPROM memory has a finite number of write cycles.

- Error Handling: Implement error-checking mechanisms to handle communication errors or data corruption, ensuring the reliability of the data logging system.

- Backup Power: Include a backup power source, such as a coin cell battery, to maintain timekeeping functionality in case of a primary power failure.

- Data Integrity: Implement measures to ensure data integrity, such as using checksums or error correction codes, to detect and correct errors in stored data.

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6. What is the process for return or replacement of MCP795W21T-I/SL?

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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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