PCA9534PWManufacturer: TI 8-bit I2C-bus and SMBus low power I/O port with interrupt | |||
| Partnumber | Manufacturer | Quantity | Availability |
|---|---|---|---|
| PCA9534PW | TI | 1 | In Stock |
Description and Introduction
8-bit I2C-bus and SMBus low power I/O port with interrupt The **PCA9534PW** from Texas Instruments is an advanced **8-bit I²C-bus and SMBus I/O expander** designed to enhance system flexibility in embedded applications. This low-voltage CMOS device provides general-purpose remote I/O expansion via the I²C interface, making it ideal for applications requiring additional input/output ports without increasing microcontroller pin count.  
Featuring **8 programmable GPIO pins**, the PCA9534PW supports both input and output configurations, with each pin individually configurable through the I²C interface. It operates at **1.65V to 5.5V**, ensuring compatibility with a wide range of microcontrollers and logic levels. The device includes internal pull-up resistors, reducing external component requirements.   Key features include **interrupt output functionality**, which alerts the host controller of input state changes, improving system efficiency. The PCA9534PW also offers **low standby current consumption**, making it suitable for power-sensitive applications.   With its compact **TSSOP-16 package**, the PCA9534PW is well-suited for space-constrained designs in industrial control, consumer electronics, and IoT devices. Its robust performance and ease of integration make it a reliable choice for expanding digital I/O capabilities in modern electronic systems. |
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Application Scenarios & Design Considerations
8-bit I2C-bus and SMBus low power I/O port with interrupt
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