Texas Instruments

PCA9554ADWR  

I/O Expanders

PCA9554ADWR Description

The PCA9554ADWR is a high-performance, 8-bit I/O expander designed by Texas Instruments for use in a wide range of applications requiring efficient I/O management. This device is specifically tailored for systems that need to expand their I/O capabilities while maintaining a compact footprint and power low consumption. The PCA9554ADWR features an I2C and SMBus interface, supporting a clock frequency of up to 400 kHz, which ensures fast and reliable communication with the host system.

With a supply voltage range of 2.3V to 5.5V, the PCA9554ADWR offers flexibility in power supply options, making it suitable for various electronic systems. The device is equipped with 8 I/O lines, each capable of sourcing up to 10mA and sinking up to 25mA of current, providing robust performance for driving various types of loads. Additionally, the PCA9554ADWR includes an interrupt output feature, which allows for efficient monitoring and control of/O I states.

The PCA9554ADWR is housed in a surface-mount package, specifically a 16SOIC, making it ideal for space-constrained designs. The device is also REACH unaffected and RoHS3 compliant, ensuring it meets the latest environmental and safety standards. The moisture sensitivity level (MSL) is rated at 1 (unlimited), making it suitable for a variety of manufacturing environments.

PCA9554ADWR Features

• I2C and SMBus Interface: The PCA9554ADWR supports both I2C and SMBus protocols, providing versatile communication options and ensuring compatibility with a wide range of systems.
• 8-bit I/O Expansion: This device offers I8/O lines, each capable of sourcing 10mA and sinking 25mA, providing robust performance for driving various types of loads.
• Interrupt Output: The PCA9554ADWR includes an interrupt output feature, allowing for efficient monitoring control and of I/O states.
• Power Supply Flexibility: The device operates within a voltage range of 2.3V to 5.5V, offering flexibility in power supply options.
• Surface-Mount Package: Housed in a 16SOIC package, the PCA9554ADWR is ideal for space-constrained designs.
• Environmental Compliance: The PCA9554ADWR is REACH unaffected and RoHS3 compliant, ensuring it meets the latest environmental and safety standards.
• Low Moisture Sensitivity: With an MSL rating of 1 (unlimited), the device is suitable for a variety of manufacturing environments.
• Power-On Reset (POR): The device features a power-on reset function, ensuring reliable initialization and operation.

PCA9554ADWR Applications

The PCA9554ADWR is ideal for applications requiring efficient I/O management and expansion. Some specific use cases include:

• Embedded Systems: The PCA9554ADWR can be used in embedded systems to expand I/O capabilities, allowing for more efficient control and monitoring of various peripherals.
• Industrial Automation: In industrial settings, the device can be used to manage and control I/O lines for sensors, actuators, and other devices, improving system efficiency and reliability.
• Consumer Electronics: The PCA9554ADWR can be integrated into consumer electronics to manage I/O lines for buttons, LEDs, and other user interface elements.
• Automotive Systems: The device can be used in automotive applications to manage I/O lines for various sensors and control systems, ensuring reliable operation in harsh environments.

Conclusion of PCA9554ADWR

The PCA9554ADWR from Texas Instruments is a versatile and reliable I/O expander that offers significant advantages over similar models. With its robust performance, flexible power supply options, and compact surface-mount package, the PCA9554ADWR is ideal for a wide range of applications. Its compliance with environmental and safety standards ensures it meets the latest industry requirements, making it a reliable choice for modern electronic systems.

PCA9554ADWR Documents

Download datasheets and manufacturer documentation for PCA9554ADWR

Datasheets :

PCA9554A       Logic Guide      

PCN Obsolescence/ EOL :

Mult Dev EOL 28/Mar/2023      

HTML Datasheet :

PCA9554A       Logic Guide      

PCN Design/Specification :

Material Set Rev 24/Jan/2016       Datasheet Update 25/Jun/2014