Texas Instruments

PCA9554APWR  

I/O Expanders

PCA9554APWR Description

The PCA9554APWR is a high-performance I/O expander from Texas Instruments, designed to meet the demands of modern electronic systems. This 8-bit I/O expander operates at a clock frequency of 400 kHz, ensuring efficient data transfer and processing. With a supply voltage range of 2.3V to 5.5V, it is suitable for a wide range of applications. The PCA9554APWR is RoHS compliant and REACH unaffected, making it an environmentally friendly choice. It is available in a 16-pin TSSOP package and is mounted on the surface, making it easy to integrate into various designs.

PCA9554APWR Features

• 8-bit I/O expander with 8 I/O lines
• Clock frequency of 400 kHz for efficient data transfer
• 2.3V to 5.5V supply voltage range for compatibility with various power sources
• RoHS compliant and REACH unaffected for environmental sustainability
• Surface mount design for easy integration into different systems
• I2C and SMBus interface for versatile communication options
• POR (Power-On Reset) feature for reliable system startup
• Interrupt output for real-time event notifications
• 10mA and 25mA output source/sink capabilities for various load requirements
• Moisture Sensitivity Level (MSL) of 1, indicating unlimited storage time before use

PCA9554APWR Applications

The PCA9554APWR is ideal for a variety of applications where I/O expansion is required. Some specific use cases include:

1. Industrial control systems: The PCA9554APWR can be used to expand the number of I/O lines in industrial control systems, allowing for more complex control and monitoring capabilities.
2. Home automation: This I/O expander can be used in home automation systems to control various devices, such as lighting, HVAC, and security systems, through a centralized control unit.
3. Automotive systems: The PCA9554APWR can be used in automotive systems to control various electronic components, such as infotainment systems, climate control, and lighting.
4. Medical equipment: This I/O expander can be used in medical equipment to control and monitor various sensors and actuators, ensuring accurate and reliable operation.

Conclusion of PCA9554APWR

The PCA9554APWR is a versatile and high-performance I/O expander that offers a range of features and benefits for various applications. Its 400 kHz clock frequency, wide supply voltage range, and RoHS compliance make it an ideal choice for many electronic systems. With its unique features, such as POR and interrupt output, the PCA9554APWR stands out from similar models and provides a reliable solution for I/O expansion needs.

PCA9554APWR Documents

Download datasheets and manufacturer documentation for PCA9554APWR

Datasheets :

PCA9554A       Logic Guide      

PCN Obsolescence/ EOL :

Mult Dev EOL 28/Mar/2023      

HTML Datasheet :

PCA9554A       Logic Guide      

PCN Design/Specification :

Datasheet Update 25/Jun/2014