PCF8564AU/5GB/1,01

Overview

Product Category

The PCF8564AU/5GB/1,01 belongs to the category of integrated circuits (ICs) and specifically falls under the Real-Time Clock (RTC) ICs.

Use

This product is primarily used for timekeeping and calendar functions in various electronic devices such as computers, appliances, and automotive systems.

Characteristics

• Real-time clock with built-in oscillator
• Low power consumption
• I2C-bus interface for easy integration
• Battery backup for uninterrupted timekeeping
• Alarm and timer functionality
• Programmable square wave output

Package

The PCF8564AU/5GB/1,01 is available in a small outline package (SO) with 8 pins. The package dimensions are 3.9mm x 4.9mm x 1.75mm.

Essence

The essence of this product lies in its ability to accurately keep track of time and date, providing a reliable time reference for various applications.

Packaging/Quantity

The PCF8564AU/5GB/1,01 is typically packaged in reels or tubes, containing a quantity of 250 units per reel/tube.

Specifications

• Supply voltage: 1.0V to 5.5V
• Operating temperature range: -40°C to +85°C
• Timekeeping accuracy: ±3 minutes per year at 25°C
• I2C-bus interface compatibility: Standard-mode (100 kHz) and Fast-mode (400 kHz)
• Battery backup voltage: 1.2V to 5.5V

Detailed Pin Configuration

The PCF8564AU/5GB/1,01 has the following pin configuration:

1. VDD - Supply voltage
2. SDA - Serial data line for I2C communication
3. SCL - Serial clock line for I2C communication
4. SQW/OUT - Programmable square wave output or interrupt output
5. GND - Ground
6. X1 - Crystal oscillator input
7. X2 - Crystal oscillator output
8. VBAT - Battery backup voltage

Functional Features

1. Timekeeping: The PCF8564AU/5GB/1,01 accurately keeps track of time and date, including leap years.
2. Alarm and Timer: It provides the ability to set alarms and timers for specific events or intervals.
3. Square Wave Output: The programmable square wave output can be used as a clock signal for other devices.
4. I2C Interface: The I2C-bus interface allows easy integration with microcontrollers and other ICs.
5. Battery Backup: The built-in battery backup ensures uninterrupted timekeeping even during power outages.

Advantages and Disadvantages

Advantages

• Accurate timekeeping with low power consumption
• Easy integration with I2C-bus interface
• Programmable square wave output for additional functionality
• Battery backup ensures uninterrupted operation

Disadvantages

• Relatively small package size may require careful handling during assembly
• Limited timekeeping accuracy compared to more advanced RTC ICs

Working Principles

The PCF8564AU/5GB/1,01 utilizes an internal oscillator and a crystal to generate precise clock signals. It communicates with external devices through the I2C-bus interface, allowing for easy configuration and data exchange. The built-in battery backup ensures continuous timekeeping, even when the main power source is disconnected.

Detailed Application Field Plans

The PCF8564AU/5GB/1,01 finds applications in various fields, including:

1. Consumer Electronics: Used in digital clocks, home appliances, and audio/video equipment.
2. Automotive Systems: Integrated into car dashboards for timekeeping and event scheduling.
3. Industrial Automation: Employed in industrial control systems and programmable logic controllers (PLCs).
4. Medical Devices: Utilized in medical instruments requiring accurate time synchronization.

Detailed and Complete Alternative Models

1. DS1307 - Real-Time Clock IC with I2C interface, higher timekeeping accuracy.
2. MCP7940N - RTC IC with battery backup and I2C/SPI interfaces, additional features like tamper detection.
3. DS3231 - Highly accurate RTC IC with temperature compensation and alarm functionality.

These alternative models offer similar functionalities to the PCF8564AU/5GB/1,01 but may have different specifications and package options.

In conclusion, the PCF8564AU/5GB/1,01 is a reliable Real-Time Clock IC that provides accurate timekeeping and calendar functions. Its low power consumption, I2C-bus interface, and battery backup make it suitable for various applications in consumer electronics, automotive systems, industrial automation, and medical devices. While it may have limitations in terms