NXP Semiconductors

PCA9535D,112  

I/O Expanders

PCA9535D,112 Description

The PCA9535D,112 is a high-performance, 16-bit I/O expander designed for I2C and SMBus interfaces. Manufactured by NXP Semiconductors, this device offers a robust solution for expanding the number of available I/O lines in embedded systems. With a clock frequency of 400 kHz, it ensures efficient communication and data transfer, making it suitable for a wide range of applications.

The PCA9535D,112 features a wide supply voltage range of 2.3V to 5.5V, providing flexibility in power supply options. It supports both I2C and SMBus protocols, enhancing its compatibility with various systems. The device also includes an interrupt output, which allows for efficient handling of asynchronous events, further improving system responsiveness.

One of the key advantages of the PCA9535D,112 is its ability to source and sink current up to 10mA and 25mA, respectively. This capability makes it ideal for driving LEDs and other low-power devices directly, reducing the need for additional components in the system. The device is packaged in a surface-mount format, making it suitable for compact designs and high-density PCB layouts.

PCA9535D,112 Features

• 16-bit I/O Expansion: Provides 16 programmable I/O lines, significantly increasing the number of available I/O ports in a system.
• I2C and SMBus Compatibility: Supports both I2C and SMBus protocols, ensuring broad compatibility with various communication interfaces.
• Wide Voltage Range: Operates within a supply voltage range of 2.3V to 5.5V, offering flexibility in power supply options.
• Interrupt Output: Features an interrupt output for efficient handling of asynchronous events, enhancing system responsiveness.
• Current Handling: Capable of sourcing up to 10mA and sinking up to 25mA, suitable for driving LEDs and other low-power devices.
• Power-On Reset (POR): Ensures a reliable reset state upon power-up, reducing the risk of erratic behavior.
• Surface-Mount Package: Available in a surface-mount package, ideal for compact and high-density PCB designs.
• Compliance and Status: REACH unaffected, RoHS3 compliant, and EAR99 classified, ensuring compliance with environmental and regulatory standards.

PCA9535D,112 Applications

The PCA9535D,112 is ideal for applications requiring a high number of I/O lines with minimal additional components. Its ability to source and sink current makes it particularly suitable for driving LEDs, switches, and other low-power devices directly. Some specific use cases include:

• Embedded Systems: Expanding I/O capabilities in microcontroller-based systems.
• Industrial Control: Managing multiple I/O lines in industrial automation and control systems.
• Consumer Electronics: Driving LEDs and other indicators in consumer devices.
• Telecommunications: Expanding I/O in communication systems and equipment.
• Automotive: Enhancing I/O capabilities in automotive electronic control units.

Conclusion of PCA9535D,112

The PCA9535D,112 offers a versatile and efficient solution for expanding I/O capabilities in a variety of applications. Its wide voltage range, interrupt output, and current handling capabilities make it a robust choice for embedded systems, industrial control, and consumer electronics. With its surface-mount package and compliance with environmental and regulatory standards, the PCA9535D,112 stands out as a reliable and flexible I/O expander in the electronics industry.

PCA9535D,112 Documents

Download datasheets and manufacturer documentation for PCA9535D,112

Datasheets :

PCA9535, PCA9535C      

PCN Packaging :

All Dev Label Update 15/Dec/2020      

Environmental Information :

NXP USA Inc REACH       NXP USA Inc RoHS Cert