NXP Semiconductors

PCA9554ATS,118  

I/O Expanders

PCA9554ATS,118 Description

The PCA9554ATS,118 is an interface IC chip designed by NXP Semiconductors, a leading provider of semiconductor solutions. This chip is a programmable I/O expander for I2C-bus/SMBus applications, offering a versatile and efficient solution for expanding the number of available I/O lines in embedded systems. The PCA9554ATS,118 features an 8-bit quasi-bidirectional I/O port, making it suitable for a wide range of applications that require additional I/O capabilities.

PCA9554ATS,118 Features

• Interface: The PCA9554ATS,118 supports both I2C and SMBus interfaces, providing flexibility in communication protocols. It operates at a clock frequency of 400 kHz, ensuring fast and reliable data transfer.
• I/O Capability: With 8 programmable I/O lines, this chip significantly enhances the I/O capacity of systems. Each I/O line can be individually configured as input, output, or open-drain.
• Power Supply: The chip operates within a voltage range of 2.3V to 5.5V, making it compatible with a variety of power supply configurations.
• Current Handling: It can source up to10mA and sink up to 25mA per I/O line, providing robust current handling capabilities.
• Interrupt Output: The PCA9554ATS,118 includes an interrupt output feature, allowing it to notify the master device of changes in the I/O state, thereby optimizing system responsiveness.
• Features: The chip includes a Power-On Reset (POR) feature, which initializes the device to a known state upon power-up, ensuring reliable operation.
• Compliance: The PCA9554ATS,118 is REACH unaffected and RoHS3 compliant, meeting environmental and safety standards.
• Packaging: Available in a surface-mount package (Tape & Reel), it is suitable for automated assembly processes and high-density PCB designs.

PCA9554ATS,118 Applications

The PCA9554ATS,118 is ideal for applications requiring additional I/O lines with minimal additional components. Its key applications include:

• Embedded Systems: Enhancing the I/O capabilities of microcontrollers and microprocessors in embedded systems.
• Consumer Electronics: Expanding I/O for devices such as smartphones, tablets, and home automation systems.
• Industrial Automation: Providing additional I/O for PLCs, sensors, and actuators in industrial environments.
• Automotive Electronics: Used in vehicle control units to manage various electronic systems.
• Medical Devices: Expanding I/O for medical monitoring and diagnostic equipment.

Conclusion of9 PCA554ATS,118

The PCA9554ATS,118 is a versatile and reliable I/O expander IC designed to meet the needs of modern electronic systems. Its support for both I2C and SMBus interfaces, combined with its robust current handling and interrupt capabilities, makes it an excellent choice for a wide range of applications. Despite being marked as obsolete, the PCA9554ATS,118 remains a valuable component for designers looking to expand I the/O capabilities of their systems with minimal additional complexity. Its compliance with environmental and safety standards ensures its suitability for use in a variety of industries.

PCA9554ATS,118 Documents

Download datasheets and manufacturer documentation for PCA9554ATS,118

Datasheets :

PCA9554(A)      

PCN Packaging :

All Dev Label Update 15/Dec/2020      

Scheme-It :

PCA9554ATS Scheme-It®      

PCN Obsolescence/ EOL :

Mult Dev EOL 9/Jun/2017      

HTML Datasheet :

PCA9554(A)      

Environmental Information :

NXP USA Inc REACH       NXP USA Inc RoHS Cert