PCF8883US/7EA/1Y

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Timing and Real-Time Clock (RTC) functions
• Characteristics:
  • Low power consumption
  • High accuracy
  • Small package size
• Package: Surface Mount Device (SMD)
• Essence: Provides timing and clock functionality for electronic devices
• Packaging/Quantity: Comes in a reel packaging with 3000 units per reel

Specifications

• Supply Voltage: 2.5V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Clock Frequency: 32.768 kHz
• Timekeeping Accuracy: ±5 ppm at 25°C
• Timer Resolution: 1 second
• Interface: I2C (Inter-Integrated Circuit)

Detailed Pin Configuration

The PCF8883US/7EA/1Y has the following pin configuration:

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

Functional Features

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

Advantages

• Low power consumption extends battery life
• High accuracy ensures precise timekeeping
• Small package size allows for space-saving designs
• I2C interface enables easy integration with microcontrollers

Disadvantages

• Limited timer resolution of 1 second
• Requires an external crystal oscillator for clock operation

Working Principles

The PCF8883US/7EA/1Y utilizes a crystal oscillator to generate a stable clock signal. It uses this clock signal to keep track of time and perform various timing functions. The IC communicates with the microcontroller through the I2C interface, allowing the microcontroller to set and retrieve time and date information.

Detailed Application Field Plans

The PCF8883US/7EA/1Y is commonly used in various electronic devices that require accurate timekeeping and scheduling. Some application fields include: - Consumer electronics (e.g., digital clocks, watches) - Industrial automation systems - Automotive electronics - Medical devices - IoT (Internet of Things) devices

Detailed and Complete Alternative Models

• PCF8563T/1, PCF8523T/1, PCF2123T/1: Similar RTC ICs with different features and specifications.
• DS1307, DS3231, MCP7940N: Alternative RTC ICs from other manufacturers.

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