Product Overview: PCA9517AD,118 by NXP Semiconductors

The PCA9517AD,118 is a robust I²C-bus repeater designed by NXP Semiconductors to provide bidirectional voltage-level translation with true bidirectional buffering for I²C-bus and SMBus applications. This innovative device allows for the extension of the I²C-bus by buffering both the data (SDA) and the clock (SCL) lines, thus enabling the use of longer bus cables or the connection of more devices on the same bus without signal degradation.

Key Features

• Compatibility: Fully compatible with I²C-bus and SMBus standards, the PCA9517AD,118 is designed to work with standard-mode, fast-mode, and fast-mode Plus I²C-bus devices as well as with multiple masters.
• Voltage-Level Translation: The device provides a seamless voltage translation between 1.0V to 5.5V bus levels, which is essential for applications that involve interfacing between components operating at different voltage levels.
• Hot-Swappable: It supports hot-swapping and hot-docking operations without corrupting the data flow on the bus, making it ideal for applications where system maintenance or upgrades need to occur without powering down the system.
• Two-Channel Bidirectional Buffering: The PCA9517AD,118 ensures strong signal drive capability by buffering both sides of the bus, which is crucial for maintaining signal integrity over extended distances.

Applications

The PCA9517AD,118 is particularly useful in applications where the I²C-bus needs to be extended or where multiple voltage domains exist within the same system. Common applications include:

• Telecommunications
• Servers and networking equipment
• Industrial control systems
• Consumer electronics

Quality and Reliability

NXP Semiconductors is known for its commitment to quality, and the PCA9517AD,118 is no exception. It is built to the highest standards, ensuring reliable performance in a wide range of operating conditions. The device is available in a small outline package, making it suitable for space-constrained applications.

With its ability to provide reliable communication in complex systems, the PCA9517AD,118 is a key component for designers looking to improve I²C-bus capabilities while maintaining signal integrity and robustness.