PCF8562TT/S400/2,1

Overview

• Category: Integrated Circuit (IC)
• Use: Real-time Clock (RTC) and Calendar
• Characteristics: Low power consumption, high accuracy, I2C interface
• Package: Surface Mount Technology (SMT), 8-pin SO package
• Essence: A highly accurate real-time clock and calendar IC

Specifications

• Supply Voltage: 1.0V to 5.5V
• Timekeeping Accuracy: ±2 ppm at 25°C
• Operating Temperature Range: -40°C to +85°C
• I2C Bus Interface: Supports Standard-mode (100 kHz) and Fast-mode (400 kHz)
• Clock Output Frequency: Programmable from 32.768 kHz to 1 Hz
• Alarm Function: Two programmable alarm interrupts
• Power-On Reset: Resets the device when the supply voltage drops below a certain threshold

Pin Configuration

The PCF8562TT/S400/2,1 has the following pin configuration:

| Pin Number | Pin Name | Description | |------------|----------|-------------| | 1 | VDD | Positive supply voltage | | 2 | SDA | Serial Data Line for I2C communication | | 3 | SCL | Serial Clock Line for I2C communication | | 4 | GND | Ground | | 5 | X1 | Crystal oscillator input | | 6 | X2 | Crystal oscillator output | | 7 | INT | Interrupt output | | 8 | RESET | Reset input |

Functional Features

• Real-time clock with seconds, minutes, hours, day, date, month, and year information
• Automatic leap year compensation
• Programmable alarm interrupts
• Clock output frequency can be programmed
• Power-on reset function
• Low power consumption in battery backup mode

Advantages and Disadvantages

Advantages: - High accuracy timekeeping - Low power consumption - Small package size - I2C interface for easy integration with microcontrollers

Disadvantages: - Limited number of alarm interrupts - Requires an external crystal oscillator for clock accuracy

Working Principles

The PCF8562TT/S400/2,1 is based on a CMOS process and uses an external 32.768 kHz crystal oscillator for accurate timekeeping. It communicates with a microcontroller or other devices using the I2C bus interface. The IC keeps track of time and date information and provides programmable alarm interrupts.

Application Field Plans

The PCF8562TT/S400/2,1 can be used in various applications that require accurate timekeeping and calendar functionality. Some potential application fields include: - Consumer electronics (e.g., digital clocks, watches) - Industrial automation systems - Automotive applications (e.g., car clocks, dashboard displays) - Medical devices - Data loggers

Alternative Models

• PCF8563: Similar real-time clock and calendar IC with additional features like timer and watchdog functions.
• DS1307: Real-time clock IC with similar functionality but different pin configuration.
• MCP7940N: Real-time clock IC with battery backup and I2C interface.

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