MCP795B11T-I/SL

Product Overview

Category

The MCP795B11T-I/SL belongs to the category of Real-Time Clocks (RTCs).

Use

This product is primarily used for timekeeping and synchronization purposes in various electronic devices.

Characteristics

• High accuracy timekeeping
• Low power consumption
• Integrated oscillator circuitry
• Non-volatile memory for data storage
• I2C interface for communication

Package

The MCP795B11T-I/SL is available in a small outline integrated circuit (SOIC) package.

Essence

The essence of this product lies in its ability to provide accurate timekeeping functionality with low power consumption, making it suitable for battery-powered devices.

Packaging/Quantity

The MCP795B11T-I/SL is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Supply Voltage: 1.8V to 5.5V
• Timekeeping Accuracy: ±2 minutes per month at 25°C
• Operating Temperature Range: -40°C to +85°C
• Memory Size: 64 bytes of non-volatile EEPROM
• Communication Interface: I2C

Detailed Pin Configuration

The MCP795B11T-I/SL has a total of 8 pins, which are as follows:

1. VDD - Power supply voltage input
2. SDA - Serial Data Line for I2C communication
3. SCL - Serial Clock Line for I2C communication
4. VSS - Ground reference
5. SQW/INT - Square Wave Output / Interrupt output pin
6. VBAT - Backup battery input for maintaining timekeeping during power loss
7. XOUT - Crystal oscillator output
8. XIN - Crystal oscillator input

Functional Features

• Real-time clock with calendar functionality
• Alarm and timer functions
• Power-fail timestamp
• Battery backup for timekeeping during power loss
• Programmable square wave output
• Interrupt output for event notification

Advantages and Disadvantages

Advantages

• High accuracy timekeeping
• Low power consumption
• Integrated oscillator circuitry reduces external component count
• Non-volatile memory for data storage
• I2C interface allows easy integration with microcontrollers

Disadvantages

• Limited memory size (64 bytes)
• Requires an external crystal oscillator for accurate timekeeping

Working Principles

The MCP795B11T-I/SL utilizes an integrated oscillator circuitry along with an external crystal oscillator to generate a precise clock signal. It maintains timekeeping accuracy by continuously updating the internal registers based on the crystal oscillator's frequency. The non-volatile memory ensures that the time and date information is retained even during power loss.

Detailed Application Field Plans

The MCP795B11T-I/SL finds applications in various electronic devices where accurate timekeeping is essential. Some of the potential application fields include:

1. Consumer Electronics: Smartphones, tablets, digital cameras
2. Industrial Automation: Programmable logic controllers (PLCs), industrial timers
3. Automotive: Dashboard clocks, car audio systems
4. Medical Devices: Patient monitoring systems, medical equipment with time-sensitive operations
5. Home Automation: Smart thermostats, security systems

Detailed and Complete Alternative Models

1. DS3231 - Real-Time Clock Module with I2C interface
2. PCF8563 - CMOS Real-Time Clock with I2C-bus interface
3. DS1307 - Serial Real-Time Clock with I2C interface
4. RV-8803-C7 - Ultra-Low Power Real-Time Clock Module

These alternative models offer similar functionalities and can be considered as alternatives to the MCP795B11T-I/SL.

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