PCF8574TS/3,118

Product Overview

Category

The PCF8574TS/3,118 belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used as an I/O expander for microcontrollers in various electronic applications.

Characteristics

• The PCF8574TS/3,118 comes in a small package and requires minimal external components.
• It operates at low power consumption, making it suitable for battery-powered devices.
• This IC supports bidirectional communication between the microcontroller and peripheral devices.
• It offers 8-bit parallel input/output (I/O) ports, expanding the number of available I/O pins on a microcontroller.

Package

The PCF8574TS/3,118 is available in a small outline transistor (SOT) package.

Essence

The essence of this product lies in its ability to provide additional I/O ports for microcontrollers, enabling them to interface with a larger number of peripheral devices.

Packaging/Quantity

The PCF8574TS/3,118 is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Supply Voltage: 2.5V to 6V
• Input/Output Voltage: 0V to VCC
• Maximum Output Current: 25mA per channel
• Operating Temperature Range: -40°C to +85°C
• Communication Interface: I2C-bus

Detailed Pin Configuration

The PCF8574TS/3,118 has a total of 16 pins, which are assigned specific functions as follows:

1. SDA: Serial Data Line
2. SCL: Serial Clock Line
3. A0: Address Bit 0
4. A1: Address Bit 1
5. A2: Address Bit 2
6. GND: Ground
7. P0: I/O Port 0
8. P1: I/O Port 1
9. P2: I/O Port 2
10. P3: I/O Port 3
11. P4: I/O Port 4
12. P5: I/O Port 5
13. P6: I/O Port 6
14. P7: I/O Port 7
15. VCC: Supply Voltage
16. NC: Not Connected

Functional Features

• Bidirectional communication between microcontroller and peripheral devices.
• Expandable I/O ports for microcontrollers.
• Low power consumption.
• Supports I2C-bus communication interface.

Advantages and Disadvantages

Advantages

• Provides additional I/O ports, reducing the need for multiple microcontrollers.
• Compact size and low external component requirement.
• Suitable for battery-powered devices due to low power consumption.
• Easy integration with microcontrollers using the I2C-bus interface.

Disadvantages

• Limited number of I/O ports (8 ports).
• Requires an I2C-bus compatible microcontroller for communication.

Working Principles

The PCF8574TS/3,118 operates by utilizing the I2C-bus communication protocol. It acts as an I/O expander for microcontrollers, allowing them to control and communicate with peripheral devices. The microcontroller sends commands and data through the I2C-bus, which are then received and processed by the PCF8574TS/3,118. The IC translates these commands into appropriate signals for the connected peripheral devices, enabling bidirectional communication.

Detailed Application Field Plans

The PCF8574TS/3,118 finds applications in various fields, including:

1. Home automation systems: Controlling lights, appliances, and sensors.
2. Industrial automation: Interfacing with sensors, actuators, and control systems.
3. Robotics: Expanding I/O capabilities for controlling motors, sensors, and communication modules.
4. Automotive electronics: Integrating additional I/O ports for controlling various vehicle systems.
5. Internet of Things (IoT): Enabling connectivity and control of IoT devices.

Detailed and Complete Alternative Models

1. PCF8574AT/3,118
2. PCF8574T/3,118
3. MCP23008-E/SO
4. MCP23S08-E/SO
5. MAX7313AUG+T

These alternative models offer similar functionality and can be used as alternatives to the PCF8574TS/3,118 in various applications.

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