The PCA9545CPW,118 is an IC component that serves as an I2C multiplexer and switch. It is specifically designed for applications that require multiple I2C devices to share a single I2C bus. The component is manufactured by NXP Semiconductors.
Key features of the PCA9545CPW,118 include:
1. I2C Multiplexing: The component allows multiple I2C devices to be connected and controlled over a single I2C bus. It functions as a multiplexer, selecting and routing the desired I2C device to communicate with the system controller.
2. Four Channels: The IC features four independent channels, each capable of connecting an I2C device to the main bus. It allows flexibility in connecting multiple devices, enabling efficient utilization of the I2C bus.
3. Power Supply: The PCA9545CPW,118 operates at a supply voltage of 2.3V to 5.5V, making it compatible with a wide range of power sources.
4. Address Selection: Each channel on the device has its own selectable I2C address, allowing easy addressing and control of individual devices connected to the multiplexer.
5. Interrupt Functionality: The component provides an interrupt output pin that can be used to notify the system controller when a selected channel is changed. This feature allows for efficient switching between different I2C devices and reduces the need for continuous polling
