PCA9535CPWManufacturer: NXP 16-bit I2C-bus and SMBus, low power I/O port with interrupt | |||
| Partnumber | Manufacturer | Quantity | Availability |
|---|---|---|---|
| PCA9535CPW | NXP | 1426 | In Stock |
Description and Introduction
16-bit I2C-bus and SMBus, low power I/O port with interrupt The **PCA9535CPW** from NXP Semiconductors is a versatile 16-bit I²C-bus and SMBus I/O expander designed to enhance system flexibility in microcontroller-based applications. This low-voltage device operates between 2.3V and 5.5V, making it suitable for a wide range of embedded systems.  
Featuring 16 quasi-bidirectional I/O pins, the PCA9535CPW allows bidirectional data transfer between the host controller and peripheral devices. Each I/O can be individually configured as an input or output, providing adaptable control for various interfacing needs. The built-in interrupt output pin signals changes on input ports, reducing the need for continuous polling and improving system efficiency.   With an I²C-bus interface supporting clock frequencies up to 400 kHz, the PCA9535CPW ensures fast and reliable communication. It also includes an active-low reset input for hardware initialization, ensuring stable operation upon power-up.   This component is ideal for applications requiring additional I/O expansion, such as industrial controls, consumer electronics, and automation systems. Its small TSSOP-24 package makes it suitable for space-constrained designs while maintaining robust performance.   The PCA9535CPW combines ease of integration with reliable functionality, making it a practical choice for designers seeking efficient I/O expansion solutions. |
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Application Scenarios & Design Considerations
16-bit I2C-bus and SMBus, low power I/O port with interrupt
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