Texas Instruments

PCA9536D

PCA9536D Description

The PCA9536D is a 4-channel I/O expander designed by Texas Instruments, offering a robust solution for expanding the number of available I/O lines in embedded systems. This device supports both I2C and SMBus interfaces, making it versatile for a wide range of applications. It operates with a clock frequency of 400 kHz, ensuring efficient data transfer rates. The PCA9536D is designed for surface mount applications and comes in a tube package, making it suitable for automated assembly processes.

The PCA9536D is powered by a supply voltage ranging from 2.3V to 5.5V, providing flexibility in power supply requirements. It features a current output source/sink capability of 10mA and 25mA, respectively, which is ideal for driving various types of loads. The device is equipped with a Power-On Reset (POR) feature, ensuring reliable operation and initialization upon power-up.

PCA9536D Features

• Interface Compatibility: Supports both I2C and SMBus interfaces, providing flexibility in system design.
• Clock Frequency: Operates at a clock frequency of 400 kHz, ensuring efficient and reliable data transfer.
• I/O Channels: Features 4 I/O channels, expanding the number of available control lines in embedded systems.
• Power-On Reset (POR): Ensures reliable initialization and operation upon power-up.
• Supply Voltage Range: Operates within a wide voltage range of 2.3V to 5.5V, providing flexibility in power supply requirements.
• Current Capability: Capable of sourcing 10mA and sinking 25mA, suitable for driving various types of loads.
• Surface Mount: Designed for surface mount applications, making it suitable for automated assembly processes.
• Package Type: Available in a tube package, ensuring easy handling and storage.
• Compliance: Meets REACH and RoHS3 compliance, ensuring environmental and safety standards are met.
• Moisture Sensitivity Level (MSL): MSL 1 (Unlimited), indicating it is not sensitive to moisture, enhancing reliability in various environments.

PCA9536D Applications

The PCA9536D is ideal for applications requiring the expansion of I/O lines in embedded systems. Its compatibility with both I2C and SMBus interfaces makes it suitable for a variety of industries, including:

• Consumer Electronics: Expanding I/O lines in devices such as smartphones, tablets, and smart home appliances.
• Industrial Automation: Enhancing control systems in industrial environments by providing additional I/O lines for sensors and actuators.
• Automotive: Utilized in control automotive units for expanding I/O capabilities, enabling more efficient control and monitoring systems.
• Medical Devices: Used in medical equipment for expanding I/O lines, allowing for more complex control and monitoring functions.

Conclusion of PCA9536D

The PCA9536D from Texas Instruments is a versatile and reliable I/O expander, offering a wide range of features and benefits. Its support for both I2C and SMBus interfaces, along with its Power-On Reset feature, makes it an excellent choice for expanding I/O lines in various embedded systems. The device's wide supply voltage range, current capability, and surface mount design further enhance its suitability for a wide range of applications. While the PCA9536D is now obsolete, its legacy continues to influence the design of modern I/O expanders, providing a solid foundation for future advancements in the field.