PCF85102C-2T/03:11

Product Overview

Category

The PCF85102C-2T/03:11 belongs to the category of integrated circuits (ICs).

Use

This product is commonly used for real-time clock (RTC) applications in various electronic devices.

Characteristics

• The PCF85102C-2T/03:11 is a highly accurate and reliable RTC IC.
• It offers low power consumption, making it suitable for battery-powered devices.
• This IC provides precise timekeeping and calendar functions.
• It supports both 12-hour and 24-hour time formats.
• The PCF85102C-2T/03:11 has an I2C interface for easy integration with microcontrollers.

Package

The PCF85102C-2T/03:11 is available in a small surface-mount package (TSSOP-8).

Essence

The essence of this product lies in its ability to provide accurate timekeeping and calendar functions in electronic devices.

Packaging/Quantity

The PCF85102C-2T/03:11 is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Supply Voltage: 1.8V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Timekeeping Accuracy: ±3 minutes per year
• I2C Bus Frequency: Up to 400kHz
• Battery Backup Support: Yes

Detailed Pin Configuration

The PCF85102C-2T/03:11 features the following pin configuration:

| Pin Number | Pin Name | Function | |------------|----------|----------| | 1 | VDD | Power Supply (1.8V to 5.5V) | | 2 | SDA | I2C Serial Data | | 3 | SCL | I2C Serial Clock | | 4 | GND | Ground | | 5 | X1 | Crystal Connection | | 6 | X2 | Crystal Connection | | 7 | VBAT | Battery Backup Input | | 8 | NC | No Connection |

Functional Features

• Real-time clock with calendar functions
• Automatic leap year compensation
• Alarm and timer functionality
• Programmable square wave output
• Power-on reset and low voltage detection
• Battery backup support for timekeeping during power loss

Advantages and Disadvantages

Advantages

• High accuracy timekeeping
• Low power consumption
• Easy integration with microcontrollers
• Versatile alarm and timer features
• Battery backup support ensures uninterrupted operation during power loss

Disadvantages

• Limited quantity of units per reel/tube
• Requires an external crystal for accurate timekeeping

Working Principles

The PCF85102C-2T/03:11 utilizes an internal oscillator and a real-time counter to keep track of time. It communicates with the host microcontroller through the I2C interface, allowing for easy configuration and retrieval of time and date information. The IC also incorporates various features like alarm and timer functions, which can be programmed by the microcontroller.

Detailed Application Field Plans

The PCF85102C-2T/03:11 finds applications in a wide range of electronic devices that require accurate timekeeping and calendar functions. Some potential application fields include:

1. Consumer Electronics: Smartphones, tablets, digital cameras, and portable media players.
2. Automotive: Car infotainment systems, dashboard clocks, and GPS navigation devices.
3. Industrial Automation: Programmable logic controllers (PLCs), industrial timers, and control panels.
4. Medical Devices: Patient monitoring systems, medical equipment with time-sensitive functions.
5. Home Automation: Smart thermostats, security systems, and energy management devices.

Detailed and Complete Alternative Models

1. PCF8563T/04:12 - Similar RTC IC with additional temperature compensation feature.
2. DS3231M-2T/05:10 - Highly accurate RTC IC with integrated temperature sensor.
3. MCP7940N-2T/06:09 - RTC IC with battery backup support and non-volatile memory.

These alternative models offer similar functionalities to the PCF85102C-2T/03:11 and can be considered as alternatives based on specific requirements.

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