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PCA9554DB,112

PCA9554DB,112 Description

The PCA9554DB,112 is an 8-bit I/O expander designed for I2C and SMBus applications, manufactured by NXP Semiconductors. This interface IC chip is part of the PCA95 family and is housed in a 16-lead SSOP package. It operates within a supply voltage range of 2.3V to 5.5V and supports a clock frequency of 400 kHz. The device features a programmable interrupt output and is capable of sourcing or sinking up to 10mA or 25mA of current per I/O pin. The PCA9554DB,112 is designed for surface mount applications and is REACH unaffected, RoHS3 compliant, and has a moisture sensitivity level (MSL) of 1 (unlimited). While the product status is marked as obsolete, it remains a reliable choice for specific applications requiring its unique capabilities.

PCA9554DB,112 Features

• I/O Expansion: Provides 8 programmable I/O pins, offering flexibility in managing multiple inputs and outputs.
• Interface Compatibility: Supports both I2C and SMBus protocols, ensuring compatibility with a wide range of systems.
• Interrupt Capability: Features an interrupt output, allowing efficient handling of asynchronous events.
• Power-On Reset (POR): Ensures reliable initialization and stable operation by resetting the device on power-up.
• Wide Voltage Range: Operates within a supply voltage range of 2.3V to 5.5V, making it suitable for various power supply configurations.
• Current Handling: Each I/O pin can source or sink up to 10mA or 25mA, providing robust current handling capabilities.
• Compliance and Safety: REACH unaffected and RoHS3 compliant, ensuring environmental and safety standards are met.
• Moisture Sensitivity: MSL level 1 (unlimited), suitable for storage and handling in various environmental conditions.

PCA9554DB,112 Applications

The PCA9554DB,112 is ideal for applications requiring efficient I/O expansion and reliable communication over I2C and SMBus. Its features make it particularly suitable for:

• Embedded Systems: Enhancing the I/O capabilities of microcontrollers and microprocessors in embedded systems.
• Industrial Automation: Managing multiple sensors and actuators in industrial control systems.
• Consumer Electronics: Expanding the functionality of devices such as smart home controllers and IoT devices.
• Telecommunications: Providing additional I/O for communication equipment and network devices.
• Automotive Systems: Supporting various electronic control units (ECUs) in automotive applications.

Conclusion of PCA9554DB,112

The PCA9554DB,112 offers a robust solution for I/O expansion in a variety of applications. Its compatibility with I2C and SMBus protocols, along with its wide voltage range and interrupt capability, make it a versatile component. Despite being marked as obsolete, its reliability and compliance with environmental standards ensure it remains a viable option for specific use cases. For applications requiring efficient I/O management and reliable communication, the PCA9554DB,112 is a valuable choice in the electronics industry.