PCA9534ADBManufacturer: TI Remote 8-Bit I2C and Low-Power I/O Expander with Interrupt Output and Configuration Registers 16-SSOP -40 to 85 | |||
| Partnumber | Manufacturer | Quantity | Availability |
|---|---|---|---|
| PCA9534ADB | TI | 18 | In Stock |
Description and Introduction
Remote 8-Bit I2C and Low-Power I/O Expander with Interrupt Output and Configuration Registers 16-SSOP -40 to 85 The **PCA9534ADB** from Texas Instruments is an 8-bit I²C-bus and SMBus I/O expander designed to enhance system flexibility by providing additional GPIO ports. This low-voltage CMOS device operates within a 1.65V to 5.5V range, making it suitable for interfacing with a variety of microcontrollers and processors in embedded applications.  
Featuring an I²C interface with three hardware address pins, the PCA9534ADB allows up to eight devices to share the same bus, reducing wiring complexity. Each of its eight I/O pins can be independently configured as an input or output, with internal pull-up resistors simplifying circuit design.   Key applications include industrial control systems, consumer electronics, and IoT devices where additional I/O expansion is needed. The device also includes interrupt output functionality, enabling efficient event-driven processing. With a low standby current consumption, it is ideal for power-sensitive designs.   The PCA9534ADB is offered in a compact TSSOP package, ensuring space-efficient integration into modern PCB layouts. Its robust design and compatibility with industry-standard communication protocols make it a reliable choice for expanding digital I/O capabilities in diverse electronic systems. |
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Application Scenarios & Design Considerations
Remote 8-Bit I2C and Low-Power I/O Expander with Interrupt Output and Configuration Registers 16-SSOP -40 to 85
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