NXP Semiconductors

PCA9535CD,112  

I/O Expanders

PCA9535CD,112 Description

The PCA9535CD,112 is a 16-bit I/O expander with an I2C and SMBus interface, designed to provide additional digital input/output capabilities to microcontrollers and microprocessors. Manufactured by NXP Semiconductors, this device operates within a supply voltage range of 2.3V to 5.5V and supports a clock frequency of 400 kHz. It features a programmable output source and sink current of 10mA and 25mA, respectively, making it suitable for a variety of applications requiring different current levels.

The PCA9535CD,112 is housed in a surface-mount package, specifically a tube, which ensures ease of integration into compact electronic designs. It includes an interrupt output feature, which allows for efficient communication with the host controller. The device also incorporates a Power-On Reset (POR) feature, ensuring reliable operation upon power-up.

PCA9535CD,112 Features

• 16-bit I/O Expansion: Provides 16 digital I/O lines, offering significant expansion capabilities for microcontroller-based systems.
• I2C and SMBus Interface: Supports both I2C and SMBus protocols, ensuring compatibility with a wide range of host controllers.
• Programmable Current Levels: Offers programmable output source and sink currents of 10mA and 25mA, allowing flexibility in driving various types of loads.
• Interrupt Output: Features an interrupt output, enabling efficient communication and reducing the load on the host controller.
• Power-On Reset (POR): Ensures reliable operation by resetting the device upon power-up.
• Wide Supply Voltage Range: Operates within a voltage range of 2.3V to 5.5V, making it suitable for a variety of power supply configurations.
• Surface-Mount Package: Available in a tube package, facilitating easy integration into surface-mount designs.
• Compliance: Meets REACH and RoHS3 compliance standards, ensuring environmental and safety regulations are met.

PCA9535CD,112 Applications

The PCA9535CD,112 is ideal for applications requiring additional I/O expansion with minimal impact on the host controller's resources. Some specific use cases include:

• Embedded Systems: Enhancing the I/O capabilities of microcontrollers in embedded systems, such as home automation controllers, industrial control panels, and smart meters.
• Consumer Electronics: Expanding the functionality of devices like remote controls, gaming consoles, and smart appliances.
• Automotive Electronics: Providing additional I/O for automotive control units, infotainment systems, and sensor interfaces.
• Communication Systems: Enhancing the I/O capabilities of communication devices, such as routers, switches, and base stations.

Conclusion of PCA9535CD,112

The PCA9535CD,112 is a versatile I/O expander that offers significant expansion capabilities with its 16-bit I/O lines and programmable current levels. Its support for both I2C and SMBus protocols ensures compatibility with a wide range of host controllers. The inclusion of an interrupt output and Power-On Reset feature further enhances its reliability and efficiency. Despite being marked as obsolete, the PCA9535CD,112 remains a valuable component for applications requiring robust I/O expansion in compact electronic designs.

PCA9535CD,112 Documents

Download datasheets and manufacturer documentation for PCA9535CD,112