The PCA9541PW/03,112 is a distinctive I²C-bus switch with an interrupt logic, designed and manufactured by NXP Semiconductors. This innovative component is engineered to provide a seamless and efficient solution for applications requiring the connection of multiple I²C devices with identical addresses or the need to isolate bus segments to enhance system reliability and performance.

Key Features

• Two-Channel I²C-bus Switch: The PCA9541PW/03,112 features two bidirectional translating switches that can be controlled via the I²C-bus, enabling connection to multiple peripherals with the same address or isolating bus segments.
• Interrupt Logic: Incorporated interrupt logic facilitates the arbitration between the two downstream channels, ensuring efficient communication and minimizing the potential for data collision.
• Channel Selection: Through an I²C-bus interface, the PCA9541PW/03,112 allows for independent selection of the active downstream channel, providing enhanced control over the connected devices.
• Active-Low Interrupt Inputs: Each channel is equipped with an active-low interrupt input which can be used by connected peripherals to signal the upstream master that an interrupt has occurred.
• High Noise Immunity: The device is designed with a robust noise immunity, ensuring reliable operation in electrically noisy environments.

Applications

The PCA9541PW/03,112 is ideal for a variety of applications where I²C-bus communication is pivotal. These include, but are not limited to:

• Server and telecommunications systems that require multiple same-addressed I²C devices.
• Industrial control systems where bus segment isolation can prevent system errors and enhance robustness.
• Consumer electronics where multiple I²C devices need to be managed efficiently.

Technical Specifications

The PCA9541PW/03,112 is housed in a TSSOP16 package, making it compact and suitable for space-constrained applications. It operates over a supply voltage range of 2.3V to 5.5V, accommodating various system voltages. The device supports standard-mode, fast-mode, and fast-mode Plus I²C-bus protocols, providing versatility and compatibility with a wide range of I²C devices.

Ordering Information

The NXP PCA9541PW/03,112 is available for order under the specified part number, ensuring that you receive the genuine product designed to meet the highest standards of quality and performance.