PCA9674APW,118

Product Overview

Category

PCA9674APW,118 belongs to the category of integrated circuits (ICs).

Use

This product is commonly used for controlling and expanding the number of input/output (I/O) ports in electronic devices.

Characteristics

• Integrated circuit
• I2C-bus controlled 8-bit I/O expander
• Low standby current consumption
• Wide operating voltage range
• High noise immunity
• Compatible with most microcontrollers

Package

The PCA9674APW,118 is available in a small outline package (SO) with 16 pins.

Essence

The essence of PCA9674APW,118 lies in its ability to provide additional I/O ports for electronic devices, enabling efficient control and expansion capabilities.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Supply Voltage: 2.3V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• I/O Ports: 8
• I2C-bus Interface: Yes
• Maximum Frequency: 400 kHz
• Standby Current: 1 µA (typical)

Detailed Pin Configuration

The PCA9674APW,118 has a total of 16 pins, which are configured as follows:

1. SDA (Serial Data)
2. SCL (Serial Clock)
3. A0 (Address Bit 0)
4. A1 (Address Bit 1)
5. A2 (Address Bit 2)
6. RESET (Reset Input)
7. INT (Interrupt Output)
8. P0-P7 (General Purpose I/O Ports)

Functional Features

• Expandable I/O ports
• Individual port configuration
• Interrupt output for efficient communication
• Reset input for system initialization
• Compatibility with I2C-bus interface

Advantages and Disadvantages

Advantages

• Provides additional I/O ports, enhancing device functionality
• Low standby current consumption, minimizing power usage
• Wide operating voltage range, ensuring compatibility with various systems
• High noise immunity, enabling reliable operation in noisy environments
• Easy integration with most microcontrollers

Disadvantages

• Limited number of I/O ports (8)
• Requires I2C-bus interface for communication

Working Principles

The PCA9674APW,118 operates by receiving commands through the I2C-bus interface from a microcontroller. It then controls the individual I/O ports based on these commands, allowing for input or output operations as required. The interrupt output can be used to notify the microcontroller of any changes or events on the I/O ports.

Detailed Application Field Plans

The PCA9674APW,118 finds applications in various fields, including but not limited to: 1. Home automation systems 2. Industrial control systems 3. Automotive electronics 4. Robotics 5. Internet of Things (IoT) devices

In home automation systems, it can be used to control lighting, sensors, and other peripheral devices. In industrial control systems, it enables efficient management of sensors, actuators, and other equipment. In automotive electronics, it facilitates control of various components such as lights, switches, and displays. In robotics and IoT devices, it provides flexible I/O expansion capabilities for enhanced functionality.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to PCA9674APW,118 are:

1. MCP23017 - 16-Bit I/O Expander with I2C Interface
2. PCF8574 - Remote 8-bit I/O expander for I2C-bus
3. MAX7313 - 16-Port I/O Expander with Serial Interface

These alternative models can be considered based on specific requirements and compatibility with the target system.

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