Texas Instruments

PCF8574ANE4

PCF8574ANE4 Description

The PCF8574ANE4 is an 8-bit I/O expander designed for I2C/SMBus applications, offering a versatile solution for expanding the number of available I/O lines in embedded systems. Manufactured by Texas Instruments, this device operates within a supply voltage range of 2.5V to 6V and supports a clock frequency of up to 100 kHz. The PCF8574ANE4 is housed in a through-hole package, making it suitable for applications requiring robust mechanical stability and ease of integration into existing PCB designs.

PCF8574ANE4 Features

• 8-bit I/O Expansion: The PCF8574ANE4 provides eight I/O lines, significantly expanding the number of available I/O ports in a system.
• I2C Interface: The device communicates via the I2C bus, allowing for efficient and reliable communication with microcontrollers and other system components.
• Power-On Reset (POR): Ensures a reliable and consistent state upon power-up, reducing the risk of system faults.
• Interrupt Output: The inclusion of an interrupt output pin allows for efficient handling of I/O events, enabling the microcontroller to respond promptly to changes in the I/O lines.
• Wide Supply Voltage Range: Operates from 2.5V to 6V, providing flexibility in system design and compatibility with a variety of power sources.
• Low Current Consumption: With an output source/sink current of 1mA and 25mA respectively, the PCF8574ANE4 is designed for low power consumption, making it ideal for battery-powered and energy-efficient applications.
• Compliance and Safety: The PCF8574ANE4 is REACH unaffected and RoHS3 compliant, ensuring it meets the highest environmental and safety standards.
• Packaging: Available in a tube package, facilitating easy handling and storage during the manufacturing process.

PCF8574ANE4 Applications

The PCF8574ANE4 is well-suited for a variety of applications where I/O expansion is required. Some specific use cases include:

• Embedded Systems: Ideal for expanding the I/O capabilities of microcontrollers in embedded systems, enabling the connection of additional sensors, actuators, and peripherals.
• Consumer Electronics: Enhances the functionality of consumer devices by providing additional I/O lines for features such as user interfaces, status indicators, and communication ports.
• Industrial Automation: Useful in industrial settings for expanding the control and monitoring capabilities of PLCs and other automation systems.
• Automotive Applications: Suitable for automotive electronics where I/O expansion is needed for sensors, actuators, and control modules.
• Smart Home Devices: Provides additional I/O lines for smart home controllers, enabling the integration of more sensors and actuators for enhanced home automation.

Conclusion of PCF8574ANE4

The PCF8574ANE4 from Texas Instruments is a robust and versatile I/O expander that offers significant benefits for a wide range of applications. Its 8-bit I/O expansion, I2C interface, and wide supply voltage range make it a reliable and flexible solution for expanding the I/O capabilities of embedded systems. The inclusion of features such as Power-On Reset and interrupt output ensures reliable operation and efficient event handling. With its compliance to environmental and safety standards, the PCF8574ANE4 is an ideal choice for designers looking to enhance the functionality of their systems without compromising on performance or reliability.