The PCA9543CPW,118 is an IC (integrated circuit) component designed by NXP Semiconductors. It is a 2-channel I2C (Inter-Integrated Circuit) multiplexer that allows multiple I2C devices to share the same I2C bus. Here is an overview and some key features of this IC component:
1. Overview:
- The PCA9543CPW,118 is a low voltage, bidirectional voltage-level translator and multiplexer for I2C bus applications.
- It provides a way to expand the I2C bus by enabling communication with multiple I2C devices through a single I2C bus line.
2. Key Features:
- Two-channel multiplexer: The PCA9543CPW,118 features two independent I2C bus channels, allowing the selection of a desired channel for communication.
- Bi-directional voltage-level translation: It supports voltage translation between different levels of I2C buses, allowing devices operating at different voltages to communicate with each other.
- Low ON-resistance switches: The IC includes transmission gates with low ON-resistance, minimizing signal distortion and ensuring reliable communication.
- Interrupt output: It provides an interrupt output pin that can be used to notify the microcontroller whenever a channel is selected or deselected.
- Software-controlled channel selection: The IC allows channel selection through the I2C bus, making it easy to manage and switch between devices on the bus.
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