The PCA9534PW,112 is an Integrated Circuit (IC) component primarily designed for general-purpose input/output (GPIO) expansion applications. It is a 16-bit I/O expander that provides easy control and monitoring of multiple digital signals using only a few pins from the host microcontroller. Here are some key features of the PCA9534PW,112:
1. 16-bit GPIO Expander: The IC extends the number of available I/O pins by providing 16 programmable I/O ports.
2. Low Standby Current: It has a low standby current consumption, making it suitable for battery-powered devices and energy-efficient applications.
3. I2C-Bus Interface: The PCA9534PW,112 is compatible with the popular I2C-bus, allowing easy communication with a host microcontroller or other I2C devices.
4. Input and Output Ports: Each port can be individually configured as an input or an output. Input ports can be used to read the logic level of external signals, while output ports can drive external devices.
5. Programmable Polarity Inversion: The IC allows the inversion of input and output polarities on each port. This feature is useful in applications where active-low signals need to be processed.
6. Interrupt Output: The PCA9534PW,112 provides an interrupt output pin that can be configured to indicate changes in input port states or as a simple interrupt signaling mechanism.
7. Power-On Reset: It has a power-on reset feature that ensures all the ports are in a known state after power-up or device reset.
8. Address Select Pins: Multiple ICs can be used on the same I2C-bus by setting unique addresses using the address select pins.
9. Small Package: The PCA9534PW,112 is available in a small and space-saving TSSOP package, making it suitable for applications with size constraints.
These key features make the PCA9534PW,112 a versatile IC component for expanding general-purpose I/O capabilities in various applications, including industrial automation, home automation, consumer electronics, and more.
